PTN78060WAST

PTN78060W_09 TI | Alldatasheet

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1%,□0.05□W (Required) PTN78060 (Top□View) STANDARD APPLICATION RSET# 4 5 VO Sense L O A D C * Ceramic (Required) I C *

100 F/c109

(Required) O *See□the section□for□capacitor□recommendations.□The□minimum□input□capacitance is PTN78060W,□and PTN78060H. Application□Information 2.2 F□for 14.1 F□(3□x□4.7 F)□for/c109 /c109 /c109 #R oltage.□See□the section□for□Values.SET Application□Informationis□required□to□adjust□the□output□v PTN78060W PTN78060H www.ti.com SLTS229B NOVEMBER 2004 REVISED JUNE 2009 3-A, WIDE-INPUT ADJUSTABLE SWITCHING REGULATOR General-Purpose, Industrial Controls, 3-A Output Current HVAC Systems Wide-Input Voltage Test and Measurement, V to (15 V to Medical Instrumentation Wide-Output Voltage Adjust AC/DC Adaptors, Vehicles, (2.5 V to 12.6 (11.85 V to Marine, and Avionics High Efficiency (Up to 96%) On/Off Inhibit Under-Voltage Lockout Output Current Limit Overtemperature Shutdown Operating Temperature: -40 C to C Surface Mount Package Available The PTN78060 is a series of high-efficiency, step-down integrated switching regulators (ISR), that represent the third generation in the evolution of the popular (PT)78ST200, 78ST300, (PT)78HT200, and 78HT300 series of products. In new designs, the PTN78060 series may also be considered in place of the PT6200, PT6210, and PT6300 series of single in-line pin (SIP) products. In all cases, the PTN78060 has either similar or improved electrical performance characteristics. The caseless, double-sided package has excellent thermal characteristics, and is compatible with TI s roadmap for RoHS and lead-free compliance. Operating from a wide-input voltage range, the PTN78060 provides high-efficiency, step-down voltage conversion for loads of up to The output voltage can be set to any value over a wide adjustment range using a single external resistor. The PTN78060W may be set to any value within the range, 2.5 V to 12.6 and the PTN78060H from 11.85 V to The output voltage of the PTN78060W can be as little as V lower than the input, allowing operation down to with an output voltage of The output voltage of the PTN78060H can be as little as V lower than the input, allowing operation down to with an output voltage of The PTN78060 has undervoltage lockout, an integral on/off inhibit, and includes an output current limit and overtemperature protection. It is well suited to a wide variety of general-purpose 12-V, 24-V, or 28-V DC power. Please be aware that an important notice concerning availability, standard warranty, and use in critical sheet. PRODUCTION DATA information is current as of publication date. Copyright 2004 2009, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

(1) RECOMMENDED OPERATING CONDITIONS PACKAGE SPECIFICATIONS PTN78060W PTN78060H SLTS229B NOVEMBER 2004 REVISED JUNE 2009 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. ORDERING INFORMATION For the most current package and ordering information, see the Package Option Addendum at the end of this datasheet, or see the TI website at www.ti.com. over operating free-air temperature range unless otherwise noted all voltages with respect to GND UNIT T A Operating free-air temperature Over V I range C to C Surface temperature of module body or 260 C Wave solder temperature Horizontal TH (suffix AH) pins seconds) Surface temperature of module body or Horizontal SMD (suffix AS) 235 C Solder reflow temperature pins Horizontal SMD (suffix AZ) 260 C T stg Storage temperature C to 125 C V I Input surge voltage, ms maximum V V (Inhibit) Inhibit (pin input voltage 0.3 V to V P O Output power V O V W (1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. MIN MAX UNIT PTN78060W V I Input voltage V PTN78060H T A Operating free-air temperature C PTN78060x (Suffix AH, AS, and AZ) Weight 3.9 grams Flammability Meets UL V-O Per Mil-STD-883D, Method 2002.3, ms, sine, Mechanical shock 500 G (1) mounted Horizontal T/H (suffix AH) G (1) Mechanical vibration Mil-STD-883D, Method 2007.2, 20-2000 Hz Horizontal SMD (suffix AS and AZ) G (1) (1) Qualification limit. Submit Documentation Feedback Copyright 2004 2009, Texas Instruments Incorporated Product Folder Link(s): PTN78060W PTN78060H

www.ti.com SLTS229B NOVEMBER 2004 REVISED JUNE 2009 operating at C free-air temperature, V I V O I O I O (max), C I 2.2 µ C O 100 µ F (unless otherwise noted) PTN78060W PARAMETER TEST CONDITIONS MIN TYP MAX UNIT I O Output current T A natural convection airflow A V I Input voltage range Over I O range (1) (2) V Set-point voltage tolerance T A C (3) Temperature variation C to +85 C 0.5% Line regulation Over V I range mV V O Load regulation Over I O range mV Includes set point, line, load Total output voltage variation (3) T A C V I V 2.5 V I V V I 15.1 V 2.5 V I 2.5 V O (adj) Output voltage adjust range V 15.1 V V I V 2.5 12.6 V I V 0.1 V I 12.6 V I I O A R SET 732 Ω V O V 94% η Efficiency R SET k Ω V O V 86% R SET 78.7 k Ω V O 3.3 V 82% Output voltage ripple 20-MHz bandwidth V O V (PP) I O (LIM) Current limit threshold Δ V O mV 5.5 A 1-A/ µ s load step from 50% to 100% I O max Transient response Recovery time 100 µ s V O over/undershoot O Input high voltage IH Open (4) V Inhibit control (pin Input low voltage IL 0.1 0.3 Input low current IL 0.25 mA I I(stby) Input standby current Pin connected to GND mA F S Switching frequency Over V I and I O ranges 440 550 660 kHz C I External input capacitance 2.2 (5) µ F Ceramic or nonceramic 100 (6) Ceramic 200 µ F C O External output capacitance Nonceramic 2,000 Equivalent series resistance (nonceramic) (7) m Ω Per Telcordia SR-332, 50% stress, MTBF Calculated reliability 8.9 Hr T A ground benign (1) For output voltages less than the minimum input voltage is V or O whichever is greater. For output voltages of V and higher, the minimum input voltage is O 2.5) See the Application Information section for further guidance. (2) For output voltages less than 3.6 the maximum input voltage is V O See the Application Information section for further guidance. (3) The set-point voltage tolerance is affected by the tolerance and stability of R SET The stated limit is unconditionally met if R SET has a tolerance of with 100 ppm/ C or better temperature stability. (4) This control pin has an internal pullup, and if left open-circuit, the module operates when input power is applied. The open-circuit voltage is typically 1.5 A small, low-leakage 100 nA) MOSFET is recommended for control. An external pull-up resistor should not be used. See the Application Information for further guidance. (5) An external 2.2- µ F ceramic capacitor is required across the input I and GND) for proper operation. Locate the capacitor close to the module. (6) 100 µ F of output capacitance is required for proper operation. See the Application Information section for further guidance. (7) This is the typical ESR for all the electrolytic (nonceramic) capacitance. Use m Ω as the minimum when using max-ESR values to calculate. Copyright 2004 2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): PTN78060W PTN78060H

www.ti.com operating at C free-air temperature, V I V O I O I O (max), C I 4.7 µ C O 100 µ F (unless otherwise noted) PTN78060H PARAMETER TEST CONDITIONS MIN TYP MAX UNIT V O V (1) T A natural convection I O Output current V O V (1) A airflow V O V (1) V I Input voltage range Over I O range (2) V Set-point voltage tolerance T A C (3) Temperature variation C to +85 C 0.5% Line regulation Over V I range mV V O Load regulation Over I O range mV Includes set point, line, load Total output voltage variation (3) T A C V I V 11.85 V I V V I V 11.85 V I V O (adj) Output voltage adjust range V V I V 11.85 V I R SET 383 k Ω V O V 93% η Efficiency V I R SET k Ω V O V 95% I O V I R SET 95.3 Ω V O 96% Output voltage ripple 20-MHz bandwidth 1.2% V O V (PP) I O (LIM) Current limit threshold Δ V O mV 5.5 A 1-A/ µ s load step from 50% to 100% I O max Transient response Recovery time 100 µ s V O over/undershoot O Input high voltage IH Open (4) V Inhibit control (pin Input low voltage IL 0.1 0.3 Input low current IL 0.25 mA I I(stby) Input standby current Pin connected to GND mA F S Switching frequency Over V I and I O ranges 440 550 660 kHz C I External input capacitance Ceramic or nonceramic 14.1 (5) µ F Ceramic 200 µ F C O External output capacitance Nonceramic 100 (6) 2,000 Equivalent series resistance (nonceramic) (7) m Ω Per Telcordia SR-332, 50% stress, MTBF Calculated reliability 8.9 Hr T A ground benign (1) The maximum output current is amps or a maximum output power of whichever is less. See the Application Information section for further guidance. (2) For output voltages less than the minimum input voltage is V or O whichever is greater. For output voltages of V and higher, the minimum input voltage is O See the Application Information for further guidance. (3) The set-point voltage tolerance is affected by the tolerance and stability of R SET The stated limit is unconditionally met if R SET has a tolerance of with 100 ppm/ C or better temperature stability. (4) This control pin has an internal pullup, and if left open-circuit, the module operates when input power is applied. The open-circuit voltage is typically 1.5 A small, low-leakage 100 nA) MOSFET is recommended for control. See the Application Information section for further guidance. (5) Three external 4.7- µ F ceramic capacitors are required across the input I and GND) for proper operation. Locate the capacitor close to the module. (6) 100 µ F of output capacitance is required for proper operation. See the Application Information section for further guidance. (7) This is the typical ESR for all the electrolytic (nonceramic) capacitance. Use m Ω as the minimum when using max-ESR values to calculate. Submit Documentation Feedback Copyright 2004 2009, Texas Instruments Incorporated Product Folder Link(s): PTN78060W PTN78060H

(Top□View) 543 PTN78060W PTN78060H www.ti.com SLTS229B NOVEMBER 2004 REVISED JUNE 2009 TERMINAL FUNCTIONS TERMINAL I/O NO. This is the common ground connection for the V I and V O power connections. It is also the 0-VDC GND reference for the Inhibit and V O Adjust control inputs. V I I The positive input voltage power node to the module, which is referenced to common GND. The Inhibit pin is an open-collector/drain active-low input that is referenced to GND. Applying a low-level ground signal to this input disables the module s output and turns off the output voltage. When the Inhibit Inhibit I control is active, the input current drawn by the regulator is significantly reduced. If the Inhibit pin is left open-circuit, the module produces an output whenever a valid input source is applied. A resistor must be connected between this pin and GND (pin to set the output voltage. If left open-circuit, the output voltage is set to a default value. The temperature stability of the resistor should be V O Adjust I 100 ppm/ C (or better). The standard resistor value for a number of common output voltages is provided in the application information. The sense input allows the regulation circuit to compensate for voltage drop between the module and the V O Sense I load. For optimum voltage accuracy, V O Sense should be connected to V O If the sense feature is not used, this pin may be left disconnected. V O O The regulated positive power output with respect to the GND node. Copyright 2004 2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): PTN78060W PTN78060H

(7-V INPUT) (1) (2) 0 0.5 1 1.5 2 2.5 3 100 VO = 3.3 V VO = 2.5 V VO = 5 V Efficiency − % IO − Output Current − A 0 0.5 1 1.5 2 2.5 3 IO − Output Current − A − Output Voltage Ripple − mVV O PP VO = 3.3 V VO = 2.5 V VO = 5 V 0.4 0.8 1.2 1.6 0 0.5 1 1.5 2 2.5 3 − Power Dissipation − WPD IO − Output Current − A VO = 3.3 V VO = 2.5 V VO = 5 V 0 0.5 1 1.5 2 2.5 3 IO − Output Current − A

200 LFM

Ambient Temperature − /C0053C

100 LFM

VO = 3.3 V 0 0.5 1 1.5 2 2.5 3 IO − Output Current − A Ambient Temperature − /C0053C VO = 5 V PTN78060W PTN78060H SLTS229B NOVEMBER 2004 REVISED JUNE 2009 www.ti.com EFFICIENCY OUTPUT VOLTAGE RIPPLE POWER DISSIPATION vs vs vs OUTPUT CURRENT OUTPUT CURRENT OUTPUT CURRENT Figure Figure Figure TEMPERATURE DERATING TEMPERATURE DERATING vs vs OUTPUT CURRENT OUTPUT CURRENT Figure Figure (1) The electrical characteristic data has been developed from actual products tested at This data is considered typical for the converter. Applies to Figure Figure and Figure (2) The temperature derating curves represent the conditions at which internal components are at or below the manufacturer s maximum operating temperatures. Derating limits apply to modules soldered directly to a 100 mm x 100 mm, double-sided PCB with oz. copper. For surface mount packages, multiple vias (plated through holes) are required to add thermal paths around the power pins. Please refer to the mechanical specification for more information. Applies to Figure and Figure Submit Documentation Feedback Copyright 2004 2009, Texas Instruments Incorporated Product Folder Link(s): PTN78060W PTN78060H

(15-V INPUT) (1) (2) 100 0 0.5 1 1.5 2 2.5 3 IO − Output Current − A − Output Voltage Ripple − mVV O PP VO = 3.3 V VO = 5 V VO = 9 V VO = 12 V VO = 2.5 V 0.5 1.5 2.5 0 0.5 1 1.5 2 2.5 3 − Power Dissipation − WPD IO − Output Current − A VO = 3.3 V VO = 9 V VO = 12 V 0 0.5 1 1.5 2 2.5 3 100 VO = 3.3 V VO = 5 V VO = 9 V VO = 2.5 V VO = 12 V Efficiency − % IO − Output Current − A 0 0.5 1 1.5 2 2.5 3 IO − Output Current − A Ambient Temperature − /C0053C VO = 3.3 V 0 0.5 1 1.5 2 2.5 3 IO − Output Current − A Ambient Temperature − /C0053C VO = 5 V 0 0.5 1 1.5 2 2.5 3 IO − Output Current − A Ambient Temperature − /C0053C VO = 12 V PTN78060W PTN78060H www.ti.com SLTS229B NOVEMBER 2004 REVISED JUNE 2009 EFFICIENCY OUTPUT VOLTAGE RIPPLE POWER DISSIPATION vs vs vs OUTPUT CURRENT OUTPUT CURRENT OUTPUT CURRENT Figure Figure Figure TEMPERATURE DERATING TEMPERATURE DERATING TEMPERATURE DERATING vs vs vs OUTPUT CURRENT OUTPUT CURRENT OUTPUT CURRENT Figure Figure 10. Figure 11. (1) The electrical characteristic data has been developed from actual products tested at This data is considered typical for the converter. Applies to Figure Figure and Figure (2) The temperature derating curves represent the conditions at which internal components are at or below the manufacturer s maximum operating temperatures. Derating limits apply to modules soldered directly to a 100 mm x 100 mm, double-sided PCB with oz. copper. For surface mount packages, multiple vias (plated through holes) are required to add thermal paths around the power pins. Please refer to the mechanical specification for more information. Applies to Figure through Figure Copyright 2004 2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): PTN78060W PTN78060H

(24-V INPUT) (1) (2) 0 0.5 1 1.5 2 2.5 3 100 Efficiency□-□% I -□Output□Current□- AO V =□2.5□VO V =□3.3□VO V =□5□VO V =□15□VOV =□12□VO 120 140 160 180 100 200 0 0.5 1 1.5 2 2.5 3 I -□Output□Current□- AO V -□Output□Voltage□Ripple□-□mVO PP V =□12□VO V =□3.3□VO V =□5□VO V =□2.5□VO V =□15□VO 0.5 1.5 2.5 0 0.5 1 1.5 2 2.5 3 -□Power□Dissipation□-□W PD IO -□Output□Current□- A VO =□5□V V V O O =□12□V =□15□V V V O O =□2.5□V =□3.3□V VO =□3.3□V 100□LFM Nat□conv 200□LFM Air□Flow Ambient□Temperature□- C /c176 0 0.5 1 1.5 2 2.5 3 IO -□Output□Current□- A Ambient□Temperature□- C /c176 0 0.5 1 1.5 2 2.5 3 IO -□Output□Current□- A VO =□5□V Air□Flow 200□LFM 100□LFM Nat□conv Ambient□Temperature□- C /c176 0 0.5 1 1.5 2 2.5 3 IO -□Output□Current□- A Air□Flow 200□LFM 100□LFM Nat□conv VO =□12□V 0 0.5 1 1.5 2 2.5 3 IO -□Output□Current□- A Ambient□Temperature□- C /c176 Air□Flow VO =□15□V 100□LFM 200□LFM Nat□conv PTN78060W PTN78060H SLTS229B NOVEMBER 2004 REVISED JUNE 2009 www.ti.com EFFICIENCY OUTPUT VOLTAGE RIPPLE POWER DISSIPATION vs vs vs OUTPUT CURRENT OUTPUT CURRENT OUTPUT CURRENT Figure 12. Figure 13. Figure 14. TEMPERATURE DERATING TEMPERATURE DERATING TEMPERATURE DERATING vs vs vs OUTPUT CURRENT OUTPUT CURRENT OUTPUT CURRENT Figure 15. Figure 16. Figure 17. TEMPERATURE DERATING vs OUTPUT CURRENT Figure 18. (1) The electrical characteristic data has been developed from actual products tested at This data is considered typical for the converter. Applies to Figure Figure and Figure (2) The temperature derating curves represent the conditions at which internal components are at or below the manufacturer s maximum operating temperatures. Derating limits apply to modules soldered directly to a 100 mm x 100 mm, double-sided PCB with oz. copper. For surface mount packages, multiple vias (plated through holes) are required to add thermal paths around the power pins. Please refer to the mechanical specification for more information. Applies to Figure through Figure Submit Documentation Feedback Copyright 2004 2009, Texas Instruments Incorporated Product Folder Link(s): PTN78060W PTN78060H

(32-V INPUT) (1) (2) 100 Efficiency□-□% 0 0.5 1 1.5 2 2.5 3 I -□Output□Current□- AO V =□5□VO V =□3.3□VO V =□12□VO V =□15□VO V =□22□VO 0.5 1.5 2.5 P -□Power□Dissipation□-□WD 0 0.5 1 1.5 2 2.5 3 I -□Output□Current□- AO V =□5□VO V =□3.3□VO V =□12□VO V =□15□VO V =□22□VO 100 150 200 250 300 V -□Output□Voltage□Ripple□-□mVO PP 0 0.5 1 1.5 2 2.5 3 I -□Output□Current□- AO V =□5□VO V =□3.3□VO V =□12□VO V =□15□VO V =□22□VO 0 0.5 1 1.5 2.5 2 3 I -□Output□Current□- AO Ambient□Temperature□- C/c176 100□LFM 200□LFMAir□Flow V =□3.3□VO Air□Flow 100□LFM 200□LFM Nat□conv 0 0.5 1 1.5 2.5 2 3 I -□Output□Current□- AO Ambient□Temperature□- C/c176 100□LFM 200□LFMAir□Flow V =□5□VO Air□Flow 100□LFM 200□LFM Nat□conv 0 0.5 1 1.5 2.5 2 3 I -□Output□Current□- AO Ambient□Temperature□- C/c176 100□LFM 200□LFMAir□Flow V =□12□VO Air□Flow 100□LFM 200□LFM Nat□conv 0 0.5 1 1.5 2.5 2 3 I -□Output□Current□- AO Ambient□Temperature□- C/c176 100□LFM 200□LFM Nat□conv Air□Flow VO =□15□V Air□Flow 100□LFM 200□LFM Nat□conv 0 0.5 1 1.5 2 I -□Output□Current□- AO Ambient□Temperature□- C/c176 100□LFM 200□LFM Nat□conv Air□Flow VO =□22□V PTN78060W PTN78060H www.ti.com SLTS229B NOVEMBER 2004 REVISED JUNE 2009 EFFICIENCY OUTPUT VOLTAGE RIPPLE POWER DISSIPATION vs vs vs OUTPUT CURRENT OUTPUT CURRENT OUTPUT CURRENT Figure 19. Figure 20. Figure 21. TEMPERATURE DERATING TEMPERATURE DERATING TEMPERATURE DERATING vs vs vs OUTPUT CURRENT OUTPUT CURRENT OUTPUT CURRENT Figure 22. Figure 23. Figure 24. TEMPERATURE DERATING TEMPERATURE DERATING vs vs OUTPUT CURRENT OUTPUT CURRENT Figure 25. Figure 26. (1) The electrical characteristic data has been developed from actual products tested at This data is considered typical for the converter. Applies to Figure Figure and Figure (2) The temperature derating curves represent the conditions at which internal components are at or below the manufacturer s maximum operating temperatures. Derating limits apply to modules soldered directly to a 100 mm x 100 mm, double-sided PCB with oz. copper. For surface mount packages, multiple vias (plated through holes) are required to add thermal paths around the power pins. Please refer to the mechanical specification for more information. Applies to Figure through Figure Copyright 2004 2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): PTN78060W PTN78060H

R =□54.9□kSET /c87 /c180 1.25 V V -□VO min -□RP (1) Input Voltage Considerations PTN78060W PTN78060H SLTS229B NOVEMBER 2004 REVISED JUNE 2009 www.ti.com A resistor must be connected between the V O Adjust control (pin and GND (pin to set the output voltage. The adjustment range is from 2.5 V to 12.6 V for PTN78060W. The adjustment range is from 11.85 V to V for PTN78060H. If pin is left open, the output voltage defaults to the lowest value. Table gives the standard resistor value for a number of common voltages, and with the actual output voltage that the value produces. For other output voltages, the resistor value can either be calculated using Equation and the constants for the applicable product in Table Alternatilvey, R SET can be simply selected from the range of values given in Table and Table Figure shows the placement of the required resistor. Table R SET Formula Constants PRODUCT V MIN R P PTN780x0W 2.5 V 6.49 k Ω PTN780x0H 11.824 V 6.65 k Ω The PTN78060 is a step-down switching regulator. In order that the output remains in regulation, the input voltage must exceed the output by a minimum differential voltage. Another consideration is the pulse width modulation (PWM) range of the regulator's internal control circuit. For stable operation, its operating duty cycle should not be lower than some minimum percentage. This defines the maximum advisable ratio between the regulator input and output voltage magnitudes. For satisfactory performance, the operating input voltage range of the PTN78060x must adhere to the following requirements. For PTN78060W output voltages lower than the minimum input voltage is O V or whichever is higher. For PTN78060W output voltages equal to V and higher, the minimum input voltage is O 2.5 V The maximum input voltage for PTN78060W is (10 V O or whichever is less. For PTN78060H output voltages lower than the minimum input voltage is O or whichever is higher. For PTN78060H output voltages equal to V and higher, the minimum input voltage is O V As an example, Table gives the operating input voltage range for the common output bus voltages. In addition, the Electrical Characteristics table defines the available output voltage adjust range for various input voltages. Table Standard Values of R set for Common Output Voltages V O R SET V O Operating PRODUCT (Required) (Standard Value) (Actual) V I Range 2.5 V Open 2.5 V V to V 3.3 V 78.7 k Ω 3.306 V V to V PTN780x0W V k Ω 4.996 V V to V V 732 Ω 12.002 V 14.5 V to V V 383 k Ω 12.000 V V to V V k Ω 14.994 V V to V PTN780x0H V 4.42 k Ω 18.023 V V to V V 95.3 21.998 V V to V Submit Documentation Feedback Copyright 2004 2009, Texas Instruments Incorporated Product Folder Link(s): PTN78060W PTN78060H

+CI

2.2 F/c109

0.05□W C 100 F O /c109 PTN78060W PTN78060H www.ti.com SLTS229B NOVEMBER 2004 REVISED JUNE 2009 (1) A 0.05-W rated resistor may be used. The tolerance should be 1%, with a temperature stability of 100 ppm/ C (or better). Place the resistor as close to the regulator as possible. Connect the resistor directly between pins and using dedicated PCB traces. (2) Never connect capacitors from V O Adjust to either GND or V O Any capacitance added to the V O Adjust pin affects the stability of the regulator. Figure 27. PTN78060W V O Adjust Resistor Placement Table PTN78060W Output Voltage Set-Point Resistor Values V O R SET V O R SET V O R SET V O R SET 2.50 V Open 3.7 V 50.7 k Ω 6.1 V 12.6 k Ω 9.0 V 4.07 k Ω 2.55 V 1.37 M Ω 3.8 V 46.3 k Ω 6.2 V 12.1 k Ω 9.2 V 3.75 k Ω 2.60 V 680 k Ω 3.9 V 42.5 k Ω 6.3 V 11.6 k Ω 9.4 V 3.46 k Ω 2.65 V 451 k Ω 4.0 V 39.3 k Ω 6.4 V 11.1 k Ω 9.6 V 3.18 k Ω 2.70 V 337 k Ω 4.1 V 36.4 k Ω 6.5 V 10.7 k Ω 9.8 V 2.91 k Ω 2.75 V 268 k Ω 4.2 V 33.9 k Ω 6.6 V 10.2 k Ω 10.0 V 2.66 k Ω 2.80 V 222 k Ω 4.3 V 31.6 k Ω 6.7 V 9.85 k Ω 10.2 V 2.42 k Ω 2.85 V 190 k Ω 4.4 V 29.6 k Ω 6.8 V 9.47 k Ω 10.4 V 2.20 k Ω 2.90 V 165 k Ω 4.5 V 27.8 k Ω 6.9 V 9.11 k Ω 10.6 V 1.98 k Ω 2.95 V 146 k Ω 4.6 V 26.2 k Ω 7.0 V 8.76 k Ω 10.8 V 1.78 k Ω 3.00 V 131 k Ω 4.7 V 24.7 k Ω 7.1 V 8.43 k Ω 11.0 V 1.58 k Ω 3.05 V 118 k Ω 4.8 V 23.3 k Ω 7.2 V 8.11 k Ω 11.2 V 1.40 k Ω 3.10 V 108 k Ω 4.9 V 22.1 k Ω 7.3 V 7.81 k Ω 11.4 V 1.22 k Ω 3.15 V 99.1 k Ω 5.0 V 21.0 k Ω 7.4 V 7.52 k Ω 11.6 V 1.05 k Ω 3.20 V 91.5 k Ω 5.1 V 19.9 k Ω 7.5 V 7.24 k Ω 11.8 V 889 Ω 3.25 V 85.0 k Ω 5.2 V 18.9 k Ω 7.6 V 6.97 k Ω 12.0 V 734 Ω 3.30 V 79.3 k Ω 5.3 V 18.0 k Ω 7.7 V 6.71 k Ω 12.2 V 585 Ω 3.35 V 74.2 k Ω 5.4 V 17.2 k Ω 7.8 V 6.46 k Ω 12.4 V 442 Ω 3.40 V 69.8 k Ω 5.5 V 16.4 k Ω 7.9 V 6.22 k Ω 12.6 V 305 Ω 3.45 V 65.7 k Ω 5.6 V 15.6 k Ω 8.0 V 5.99 k Ω 3.50 V 62.1 k Ω 5.7 V 15.0 k Ω 8.2 V 5.55 k Ω 3.55 V 58.9 k Ω 5.8 V 14.3 k Ω 8.4 V 5.14 k Ω 3.60 V 55.9 k Ω 5.9 V 13.7 k Ω 8.6 V 4.76 k Ω 3.65 V 53.2 k Ω 6.0 V 13.1 k Ω 8.8 V 4.40 k Ω Copyright 2004 2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): PTN78060W PTN78060H

+C3C2C1 4.7 F/c1094.7 F/c1094.7 F/c109 CeramicCeramicCeramic RSET 0.05□W www.ti.com (1) A 0.05-W rated resistor may be used. The tolerance should be 1%, with a temperature stability of 100 ppm/ C (or better). Place the resistor as close to the regulator as possible. Connect the resistor directly between pins and using dedicated PCB traces. (2) Never connect capacitors from V O Adjust to either GND or V O Any capacitance added to the V O Adjust pin affects the stability of the regulator. Figure 28. PTN78060H V O Adjust Resistor Placement Table PTN78060H Output Voltage Set-Point Resistor Values V O R SET V O R SET V O R SET 11.85 V 2633 k Ω 13.50 V 34.3 k Ω 17.20 V 6.12 k Ω 11.90 V 896 k Ω 13.65 V 30.9 k Ω 17.40 V 5.66 k Ω 11.95 V 538 k Ω 13.80 V 28.1 k Ω 17.60 V 5.23 k Ω 12.00 V 451 k Ω 13.95 V 25.6 k Ω 17.80 V 4.83 k Ω 12.10 V 242 k Ω 14.10 V 23.5 k Ω 18.00 V 4.46 k Ω 12.15 V 204 k Ω 14.25 V 21.6 k Ω 18.20 V 4.11 k Ω 12.20 V 176 k Ω 14.40 V 19.9 k Ω 18.40 V 3.79 k Ω 12.25 V 154 k Ω 14.55 V 18.5 k Ω 18.60 V 3.48 k Ω 12.30 V 138 k Ω 14.70 V 17.2 k Ω 18.80 V 3.19 k Ω 12.35 V 124 k Ω 14.85 V 16.0 k Ω 19.00 V 2.91 k Ω 12.40 V 113 k Ω 15.00 V 14.9 k Ω 19.20 V 2.65 k Ω 12.45 V 103 k Ω 15.15 V 13.9 k Ω 19.40 V 2.41 k Ω 12.50 V 94.9 k Ω 15.30 V 13.1 k Ω 19.60 V 2.18 k Ω 12.55 V 87.9 k Ω 15.45 V 12.3 k Ω 19.80 V 1.95 k Ω 12.60 V 81.8 k Ω 15.60 V 11.5 k Ω 20.00 V 1.74 k Ω 12.65 V 76.4 k Ω 15.75 V 10.8 k Ω 20.20 V 1.54 k Ω 12.70 V 71.7 k Ω 15.90 V 10.2 k Ω 20.40 V 1.35 k Ω 12.75 V 67.5 k Ω 16.05 V 9.59 k Ω 20.60 V 1.17 k Ω 12.80 V 63.7 k Ω 16.20 V 9.03 k Ω 20.80 V 995 Ω 12.85 V 60.2 k Ω 16.35 V 8.51 k Ω 21.00 V 829 k Ω 12.90 V 57.1 k Ω 16.50 V 8.03 k Ω 21.20 V 669 Ω 12.95 V 54.3 k Ω 16.65 V 7.57 k Ω 21.40 V 516 Ω 13.00 V 51.7 k Ω 16.80 V 7.14 k Ω 21.80 V 229 Ω 13.05 V 49.3 k Ω 17.10 V 6.36 k Ω 22.00 V Ω Submit Documentation Feedback Copyright 2004 2009, Texas Instruments Incorporated Product Folder Link(s): PTN78060W PTN78060H

www.ti.com SLTS229B NOVEMBER 2004 REVISED JUNE 2009 ADJUST POWER MODULES PTN78060W has a minimum requirement for input capacitance of 2.2 µ F of ceramic capacitance. The dielectric may have either an X5R or X7R temperature characteristic. Ceramic capacitors should be located within 0.5 inch (1,27 cm) of the regulator's input pins. Electrolytic capacitors can be used at the input, but only in addition to the required ceramic capacitance. The minimum ripple current rating for any nonceramic capacitance must be at least 500 mA rms for V O 5.5 For V O 5.5 the minimum ripple current rating is 750 mA rms. The ripple current rating of electrolytic capacitors is a major consideration when they are used at the input. This ripple current requirement can be reduced by placing more ceramic capacitors at the input, in addition to the minimum required 2.2 µ Tantalum capacitors are not recommended for use at the input bus, as none were found to meet the minimum voltage rating of (maximum dc voltage ac ripple). The rating is standard practice for regular tantalum capacitors to ensure reliability. Polymer-tantalum capacitors are more reliable, and are available with a maximum rating of typically These can be used with input voltages up to PTN78060H has a minimum requirement for input capacitance of 14.1 µ F 4.7 µ of ceramic capacitance. The dielectric may have either an X5R or X7R temperature characteristic. Ceramic capacitors should be located within 0.5 inch (1,27 cm) of the regulator's inpt pins. Electrolytic capacitors can be used at the input, but only in addition to the required ceramic capacitance. The minimum ripple current rating for any nonceramic capacitance must be at least 400 mA rms. The ripple current rating of electrolytic capacitors is a major consideration when they are used at the input. This ripple current requirement can be reduced by placing more ceramic capacitors at the input, in addition to the minimum required 14.1 µ Tantalum capacitors are not recommended for use at the input bus, as none were found to meet the minimum voltage rating of (maximum dc voltage ac ripple). The rating is standard practice for regular tantalum capacitors to ensure reliability. Polymer-tantalum capacitors are more reliable, and are available with a maximum rating of typically These can be used with input voltages up to The minimum capacitance required to ensure stability is a 100- µ F capacitor. Either ceramic or electrolytic-type capacitors can be used. The minimum ripple current rating for the nonceramic capacitance must be at least 150 mA rms. The stability of the module and voltage tolerances are compromised if the capacitor is not placed near the output bus pins. A high-quality, computer-grade electrolytic capacitor should be adequate. A ceramic capacitor can be also be located within 0.5 inch (1,27 cm) of the output pin. For (sudden changes in load current), the regulator response improves with additional capacitance. Additional electrolytic capacitors should be located close to the load circuit. These capacitors provide decoupling over the frequency range, kHz to 150 kHz. Aluminum electrolytic capacitors are suitable for ambient temperatures above For operation below tantalum or Os-Con type capacitors are recommended. When using one or more nonceramic capacitors, the calculated equivalent ESR should be no lower than m Ω (17 m Ω using the manufacturer's maximum ESR for a single capacitor). A list of capacitors and vendors are identified in Table and Table the recommended capacitor tables. Above 150 kHz, the performance of aluminum electrolytic capacitors becomes less effective. To further reduce the reflected input ripple current, or improve the output transient response, multilayer ceramic capacitors must be added. Ceramic capacitors have low ESR, and their resonant frequency is higher than the bandwidth of the regulator. When placed at the output, their combined ESR is not critical as long as the total value of ceramic capacitance does not exceed 200 µ Copyright 2004 2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): PTN78060W PTN78060H

www.ti.com Tantalum-type capacitors may be used at the output, and are recommended for TPS, Sprague 593D/594/595, and Kemet T495/T510/T520 capacitors series are suggested over many other tantalum types due to their rated surge, power dissipation, and ripple current capability. As a caution, many general-purpose tantalum capacitors have considerably higher ESR, reduced power dissipation, and lower ripple current capability. These capacitors are also less reliable as they have lower power dissipation and surge current ratings. Tantalum capacitors that do not have a stated ESR or surge current rating are not recommended for power applications. When specifying Os-Con and polymer tantalum capacitors for the output, the minimum ESR limit is encountered well before the maximum capacitance value is reached. The capacitor tables, Table and Table identify the characteristics of capacitors from a number of vendors with acceptable ESR and ripple current (rms) ratings. The recommended number of capacitors required at both the input and output buses is identified for each capacitor type. This is not an extensive capacitor list. Capacitors from other vendors are available with comparable specifications. Those listed are for guidance. The rms rating and ESR (at 100 kHz) are critical parameters necessary to ensure both optimum regulator performance and long capacitor life. The transient response of the dc/dc converter has been characterized using a load transient with a di/dt of µ The typical voltage deviation for this load transient is given in the data sheet specification table using the required value of output capacitance. As the di/dt of a transient is increased, the response of a converter's regulation circuit ultimately depends on its output capacitor decoupling network. This is an inherent limitation of any dc/dc converter once the speed of the transient exceeds its bandwidth capability. If the target application specifies a higher di/dt or lower voltage deviation, the requirement can only be met with additional output capacitor decoupling. In these cases, special attention must be paid to the type, value, and ESR of the capacitors selected. If the transient performance requirements exceed those specified in the data sheet, the selection of output capacitors becomes more important. Review the minimum ESR in the characteristic data sheet for details on the capacitance maximum. Table Recommended Input/Output Capacitors (PTN78060W) CAPACITOR CHARACTERISTICS QUANTITY C CAPACITOR VENDOR/ EQUIVALENT VENDOR WORKING MAXIMUM PHYSICAL COMPONENT VALUE SERIES INPUT OUTPUT NUMBER VOLTAGE RIPPLE SIZE SERIES µ RESISTANCE BUS BUS (V) CURRENT (mm) (ESR) Ω RMS (mA) Panasonic FC( Radial) 180 0.119 850 EEUFC1H181 FK (SMD) 330 0.12 900 12.50 13.5 (1) EEVFK1H331Q United Chemi-Con PXA (SMD) 180 0.016 4360 PXA16VC180MF60 (1) O LXZ 120 0.16 620 12,5 LXZ50VB121M10X12LL (1) I MVY(SMD) 100 0.300 500 MVY50VC101M10X10TP O 5.5 Nichicon UWG (SMD) 100 0.300 500 UWG1H101MNR1GS F550 (Tantalum) 100 0.055 2000 7,7 4,3 N/R (2) (3) F551A107MN O HD 120 0.072 979 12,5 UHD1H151MHR Sanyo Os-Con SVP (SMD) 100 0.024 2500 (1) 20SVP100M I SP 100 0.032 2890 (1) 16SP100M I (1) The voltage rating of the input capacitor must be selected for the desired operating input voltage range of the regulator. To operate the regulator at a higher input voltage, select a capacitor with the next higher voltage rating. (2) Not recommended (N/R). The voltage rating does not meet the minimum operating limits in most applications. (3) The maximum voltage rating of the capacitor must be selected for the desired set-point voltage O To operate at a higher output voltage select a capacitor with a higher voltage rating. Submit Documentation Feedback Copyright 2004 2009, Texas Instruments Incorporated Product Folder Link(s): PTN78060W PTN78060H

www.ti.com SLTS229B NOVEMBER 2004 REVISED JUNE 2009 Table Recommended Input/Output Capacitors (PTN78060W) (continued) CAPACITOR CHARACTERISTICS QUANTITY C CAPACITOR VENDOR/ EQUIVALENT VENDOR WORKING MAXIMUM PHYSICAL COMPONENT VALUE SERIES INPUT OUTPUT NUMBER VOLTAGE RIPPLE SIZE SERIES µ RESISTANCE BUS BUS (V) CURRENT (mm) (ESR) Ω RMS (mA) 100 0.085 1543 7,3 L 4,3 N/R (2) TPSV107M020R0085 W 4,1 H O AVX Tantalum TPS (SMD) 100 0.200 817 N/R (2) TPSE107M020R0200 O Murata X5R Ceramic 6.3 100 0.002 1000 3225 N/R (2) GRM32ER60J107M O 5.5 TDK X5R Ceramic 6.3 100 0.002 1000 3225 N/R (2) C3225X5R0J107MT O 5.5 Murata X5R Ceramic 0.002 1000 3225 (1) GRM32ER61C476M o V I 13.5 Kemet X5R Ceramic 6.3 0.002 1000 3225 N/R (2) C1210C476K9PAC O 5.5 TDK X5R Ceramic 6.3 0.002 1000 3225 N/R (2) C3225X5R0J476MT O 5.5 Murata X5R Ceramic 6.3 0.002 1000 3225 N/R (2) GRM42-2X5R476M6.3 O 5.5 TDK X7R Ceramic 2.2 0.002 1000 3225 (4) C3225X7R1E225KT/MT O Murata X7R Ceramic 2.2 0.002 1000 3225 (4) GRM32RR71E225K O Kemet X7R Ceramic 2.2 0.002 1000 3225 (5) C1210C225K3RAC O AVX X7R Ceramic 2.2 0.002 1000 3225 (5) C12103C225KAT2A O Kemet X7R Ceramic 1.0 0.002 1000 3225 (6) C1210C105K5RAC Murata X7R Ceramic 4.7 0.002 1000 3225 GRM32ER71H475KA88L TDK X7R Ceramic 2.2 0.002 1000 3225 C3225X7R1H225KT Murata X7R Ceramic 1.0 0.002 1000 3225 (6) GRM32RR71H105KA01L TDK X7R Ceramic 1.0 0.002 1000 3225 (6) C3225X7R1H105KT Kemet Radial Through-hole 1.0 0.002 1000 5,08 7,62 (6) C330C105K5R5CA 9,14 H Murata Radial Through-hole 2.2 0.004 1000 H W RPER71H2R2KK6F03 D (4) The maximum rating of the ceramic capacitor limits the regulator s operating input voltage to Select an alternative ceramic component to operate at a higher input voltage. (5) The maximum rating of the ceramic capacitor limits the regulator s operating input voltage to Select an alternative ceramic component to operate at a higher input voltage. (6) A total capacitance of µ F is an acceptable replacement value for a single 2.2- µ F ceramic capacitor Copyright 2004 2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): PTN78060W PTN78060H

www.ti.com Table Recommended Input/Output Capacitors (PTN78060H) CAPACITOR CHARACTERISTICS QUANTITY C CAPACITOR VENDOR/ EQUIVALENT VENDOR WORKING MAXIMUM PHYSICAL COMPONENT VALUE SERIES INPUT OUTPUT NUMBER VOLTAGE RIPPLE SIZE SERIES µ RESISTANCE BUS BUS (V) CURRENT (mm) (ESR) Ω RMS (mA) Panasonic FC( Radial) 100 0.162 615 12.5 EEUFC1H101 FK (SMD) 150 0.18 670 10,2 (1) EEVFK1H151P United Chemi-Con PXA (SMD) 180 0.016 4360 PXA16VC180MF60 N/R (2) O LXZ 120 0.160 620 12,5 (1) LXZ50VB121M10X12LL MVY(SMD) 100 0.300 500 MVY50VC101M10X10TP Nichicon UWG (SMD) 100 0.300 500 UWG1H101MNR1GS HD 120 0.072 979 12,5 UHD1H151MHR Sanyo Os-Con SVP (SMD) 100 0.024 2500 (1) 20SVP100M I O SP 120 0.024 3110 10,5 (1) 20SP120M I O TDK X7R Ceramic 2.2 0.002 1000 3225 (3) C3225X7R1E225KT/MT I O Murata X7R Ceramic 2.2 0.002 1000 3225 (3) GRM32RR71E225K I O Kemet X7R Ceramic 2.2 0.002 1000 3225 (3) C1210C225K3RAC I O AVX X7R Ceramic 2.2 0.002 1000 3225 (3) C12103C225KAT2A I O Murata X7R Ceramic 4.7 0.002 1000 3225 GRM32ER71H475KA88L TDK X7R Ceramic 3.3 0.002 1000 3225 (4) CKG45NX7R1H335M Murata Radial Through-hole 3.3 0.003 1000 12,5 H (5) RPER71H3R3KK6F03 12,5 W Kemet Radial Through-hole 4.7 0.003 1000 5,08 7,62 C350C475K5R5CA 9,14 (1) The voltage rating of the input capacitor must be selected for the desired operating input voltage range of the regulator. To operate the regulator at a higher input voltage, select a capacitor with the next higher voltage rating. (2) Not recommended (N/R). The voltage rating does not meet the minimum operating limits in most applications. (3) The maximum rating of the ceramic capacitor limits the regulator s operating input voltage to Select an alternative ceramic component to operate at a higher input voltage. (4) A total capacitance of 13.2 F is an acceptable replacement value for 4.7 F ceramic capacitors (5) A total capacitance of µ F is an acceptable replacement value for a single 2.2- µ F ceramic capacitor When configured per the standard application, the PTN78060 power module produces a regulated output voltage following the application of a valid input source voltage. During power up, internal soft-start circuitry slows the rate that the output voltage rises, thereby limiting the amount of in-rush current that can be drawn from the input source. The soft-start circuitry introduces a short time delay (typically ms ms) into the power-up characteristic. This is from the point that a valid input source is recognized. Figure shows the power-up waveforms when operating from a 12-V input and with the output voltage adjusted to The waveforms were measured with a 2.8-A resistive load. Submit Documentation Feedback Copyright 2004 2009, Texas Instruments Incorporated Product Folder Link(s): PTN78060W PTN78060H

II (2 A/div) VO (2□V/div) VI (5□V/div) Undervoltage Lockout Current Limit Protection Overtemperature Protection Output Voltage Sense PTN78060W PTN78060H www.ti.com SLTS229B NOVEMBER 2004 REVISED JUNE 2009 Figure 29. Power-Up Waveforms The undervoltage lockout (UVLO) circuit prevents the module from attempting to power up until the input voltage is above the UVLO threshold. This is to prevent the modulte from drawing excessive current from the input source at power up. Below the UVLO threshold, the module is held off. The module is protected against load faults with a continuous current limit characteristic. Under a load-fault condition, the output current increases to the current limit threshold. Attempting to draw current that exceeds the current limit threshold causes the module to progressively reduce its output voltage. Current is continuously supplied to the fault until the fault is removed. Once it is removed, the output voltage promptly recovers. When limiting output current, the regulator experiences higher power dissipation, which increases its temperature. If the temperature increase is excessive, the module overtemperature protection begins to periodically turn the output voltage off. A thermal shutdown mechanism protects the module's internal circuitry against excessively high temperatures. A rise in temperature may be the result of a drop in airflow, a high ambient temperature, or a sustained current limit condition. If the internal temperature rises excessively, the module turns itself off, reducing the output voltage to zero. The module excercises a soft-start power up when the sensed temperature has decreased by about C below the trip point. NOTE: Overtemperature protection is a last resort mechanism to prevent damage to the module. It should not be relied on as permanent protection against thermal stress. Always operate the module within its temperature derated limits, for the worst-case operating conditions of output current, ambient temperature, and airflow. Operating the module above these limits, albeit below the thermal shutdown temperature, reduces the long-term reliability of the module. An external voltage sense improves the load regulation performance of the module by enabling it to compensate for any IR-voltage drop between the module and the load circuit. This voltage drop is caused by the flow of current through the resistance in the printed-circuit board connections. Copyright 2004 2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): PTN78060W PTN78060H

V =□12□VI V =□5□VO Inhibit Sense + L O A D CI 21□k/c87 0.05□W CO www.ti.com To use the output voltage sense feature, simply connect the V O Sense input (pin to V O close to the device that draws the most supply current. If an external voltage sense is not desired, the V O Sense input may be left open circuit. An internal resistor (15 Ω or less), connected between this input and V O ensures that the output remains in regulation. With V O Sense connected, the difference between the voltage measure directly between the V O and GND and that measured from V O Sense to GND represents the amount of IR-voltage drop being compensated by the regulator. This should be limited to a maximum of 0.3 Note: The external voltage sense is not designed to compensate for the forward drop of nonlinear or frequency-dependent components that may be placed in series with the regulator's output. Examples include OR-ing diodes, filter inductors, ferrite beads, and fuses. When these components are enclosed by the external sense connection, they are effectively placed inside the regulation control loop. This can adversely affect the stability of the module. The inhibit feature can be used wherever there is a requirement for the output voltage to be turned off. The power module functions normally when the Inhibit control (pin is left open-circuit, providing a regulated output whenever a valid source voltage is connected to V I with respect to GND. Figure shows the the circuit used to demonstrate the inhibit function. Note the discrete transistor (Q1). Turning on applies a low voltage to the Inhibit control pin and turns the module off. The output voltage decays as the load circuit discharges the capacitance. The current drawn at the input is reduced to typically mA. If is then turned off, the module executes a soft-start power up. A regulated output voltage is produced within ms. Figure shows the typical rise in the output voltage, following the turn off of Q1. The turn off of corresponds to the fall in the waveform, Vgs. The waveforms were measured with a 2.8-A resistive load. Figure 30. On/Off Inhibit Control Circuit Submit Documentation Feedback Copyright 2004 2009, Texas Instruments Incorporated Product Folder Link(s): PTN78060W PTN78060H

VO (2□V/div) II (1 A/div) Q1□VGS (10□V/div) Optional Input/Output Filters Input/Output Capacitors PTN78060W PTN78060H www.ti.com SLTS229B NOVEMBER 2004 REVISED JUNE 2009 Figure 31. Power-Up Response From Inhibit Control Power modules include internal input and output ceramic capacitors in all of their designs. However, some ripple/noise. This application describes various filters and design techniques found to be successful in reducing both input and output ripple/noise. The easiest way to reduce output ripple and noise is to add one or more µ F ceramic capacitors, such as shown in Figure Ceramic capacitors should be placed close to the output power terminals. A single 2.2- µ F capacitor reduces the output ripple/noise by 10% to 30% for modules with a rated output current of less than (Note: is recommended to improve the regulators transient response, and does not reduce output ripple and noise.) Switching regulators draw current from the input line in pulses at their operating frequency. The amount of reflected (input) ripple/noise generated is directly proportional to the equivalent source impedance of the power source including the impedance of any input lines. The addition of C1, minimum 2.2- µ F ceramic capacitor, near the input power pins, reduces reflected conducted ripple/noise by up to 20%. Copyright 2004 2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): PTN78060W PTN78060H

UDG−05086 VOVI VOVI Inhibit 1 µF 50 V Ceramic 2.2 µF 50 V Ceramic (Required) 100 µF (Required) 2.2 µF CeramicR SET π Filters PTN78060W PTN78060H SLTS229B NOVEMBER 2004 REVISED JUNE 2009 www.ti.com See specifications for required value and type. For PTN78060H, C 4.7 µ See Application Information section for suggested value and type. For PTN78060H, C 4.7 µ Figure 32. Adding High-Frequency Bypass Capacitors To The Input and Output If a further reduction in ripple/noise level is required for an application, higher order filters must be used. A π (pi) filter, employing a ferrite bead (Fair-Rite part number 2673000701 or equivalent) in series with the input or output terminals of the regulator reduces the ripple/noise by at least db (see Figure and Figure In order for the inductor to be effective ceramic capacitors are also required. (Note: see Capacitor Recommendations for additional information on vendors and component suggestions.) These inductors plus ceramic capacitors form an excellent filter because of the rejection at the switching frequency (650 kHz MHz). The placement of this filter is critical. It must be located as close as possible to the input or output pins to be effective. The ferrite bead is small (12,5 mm mm), easy to use, low cost, and has low dc resistance. Fair-Rite also manufactures a surface-mount bead (part number 2773021447). It is rated to and can be used on the output bus. As an alternative, suitably rated µ H to µ H wound inductors can be used in place of the ferrite inductor bead. Submit Documentation Feedback Copyright 2004 2009, Texas Instruments Incorporated Product Folder Link(s): PTN78060W PTN78060H

D GNDA B C UDG−05087 1 µH to 5 µH 1 µH to 5 µH 1 µF 50 V Ceramic 2.2 µF 50 V Ceramic (Required) R SET 2.2 µF Ceramic 100 µF (Required) VIVI 0 0.5 1 1.5 2 2.5 3

1 MHz

Attenuation − dB Load Current − A PTN78060W PTN78060H www.ti.com SLTS229B NOVEMBER 2004 REVISED JUNE 2009 See specifications for required value and type. For PTN78060H, C 4.7 µ See Application Information section for suggested value and type. Recommended whenever I O 2A. For PTN78060H, C 4.7 µ Figure 33. Adding π Filters O Figure 34. π -Filter Attenuation vs. Load Current Copyright 2004 2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): PTN78060W PTN78060H

www.ti.com 5-Jun-2010 Addendum-Page 1 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp (3) Samples (Requires Login) PTN78060HAH ACTIVE Through- Hole Module EUW 7 36 Pb-Free (RoHS) Call TI N / A for Pkg Type PTN78060HAS ACTIVE Surface Mount Module EUY 7 36 TBD Call TI Level-1-235C-UNLIM/ Level-3-260C-168HRS PTN78060HAST ACTIVE Surface Mount Module EUY 7 250 TBD Call TI Level-1-235C-UNLIM/ Level-3-260C-168HRS PTN78060HAZ ACTIVE Surface Mount Module EUY 7 36 Pb-Free (RoHS) Call TI Level-3-260C-168 HR PTN78060HAZT ACTIVE Surface Mount Module EUY 7 250 Pb-Free (RoHS) Call TI Level-3-260C-168 HR PTN78060WAD ACTIVE Through- Hole Module EUW 7 36 Pb-Free (RoHS) Call TI N / A for Pkg Type PTN78060WAH ACTIVE Through- Hole Module EUW 7 36 Pb-Free (RoHS) Call TI N / A for Pkg Type PTN78060WAS ACTIVE Surface Mount Module EUY 7 36 TBD Call TI Level-1-235C-UNLIM/ Level-3-260C-168HRS PTN78060WAST ACTIVE Surface Mount Module EUY 7 250 TBD Call TI Level-1-235C-UNLIM/ Level-3-260C-168HRS PTN78060WAZ ACTIVE Surface Mount Module EUY 7 36 Pb-Free (RoHS) Call TI Level-3-260C-168 HR PTN78060WAZT ACTIVE Surface Mount Module EUY 7 250 Pb-Free (RoHS) Call TI Level-3-260C-168 HR (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.

www.ti.com 5-Jun-2010 Addendum-Page 2 Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.

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Summary

3-A, WIDE-INPUT ADJUSTABLE SWITCHING REGULATOR

Description