PTH03020W TI | Alldatasheet

Document overview

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Technical content

Features

  • Up to 22-A Output Current
  • 3.3-V Input Voltage
  • Wide-Output Voltage Adjust (0.8 V to 2.5 V)
  • Efficiencies up to 93 %
  • 120 W/in³ Power Density
  • On/Off Inhibit
  • Output Voltage Sense
  • Pre-Bias Startup
  • Margin Up/Down Controls
  • Under-Voltage Lockout PTH03020W —3.3-V Input 22-A, 3.3-V Input Non-Isolated Wide-Output Adjust Power Module Rset = Required to set the output voltage to a value higher than 0.8 V. (See spec. table for values) Cin = Required electrolytic 1,000 µF Cout = Recommended 330 µF electrolytic
  • Auto-T rack™ Sequencing
  • Output Over-Current Protection (Non-Latching, Auto-Reset)
  • Over-T emperature Protection
  • Operating T emp: –40 to +85 °C
  • IPC Lead Free 2
  • Safety Agency Approvals: UL 1950, CSA 22.2 950, EN60950 VDE (Pending)
  • Point-of-load Alliance (POLA) Compatible SL TS206C – MAY 2003 – REVISED DECEMBER 2003 Margin Up Margin Down V IN L O A D C IN 1,000 µF (Required) + C OUT 330 µF (Optional) Inhibit GND GND V OUT V o Sense Track R SET (Required)

0.1 W, 1 %

(Top View) 10 9 8 543

Description

The PTH03020 series of non-isolated power modules offers OEM designers a combination of high performance, small footprint, and industry leading features. As part of a new class of power modules these products provide designers with the flexibility to power the most complex multi-processor digital systems using off-the-shelf catalog parts. The series employs double-sided surface mount construction and provides high- performance step-down power conversion for up to 22 A of output current from a 3.3-V input bus voltage. The output volt- age of the PTH03020W can be set to any value over the range, 0.8 V to 2.5 V, using a single resistor. This series includes Auto-T rack™. Auto-Track simplifies the task of supply voltage sequencing in a power system by enabling modules to track each other, or any external voltage, during power up and power down. Other operating features include an on/off inhibit, output voltage adjust (trim), and margin up/down controls. T o ensure tight load regulation, an output voltage sense is also provided. A non-latching over-current trip and over-tempterature shutdown provide load fault protection. T arget applications include complex multi-voltage, multi-processor systems that incorporate the industry’s high-speed DSPs, micro-processors and bus drivers. Auto-Track™ Sequencing Pin Configuration Pin Function

1 GND

3 Inhibit *

7 GND

8 Track

9 Margin Down *

10 Margin Up *

  • Denotes negative logic: Open = Normal operation Ground = Function active NOMINAL SIZE = 1.5 in x 0.87 in (38,1 mm x 22,1 mm)

For technical support and further information, visit http://power.ti.com Pin Descriptions Vin: The positive input voltage power node to the mod- ule, which is referenced to common GND. Vout: The regulated positive power output with respect to the GND node. GND: This is the common ground connection for the Vin and Vout power connections. It is also the 0 VDC reference for the control inputs. Inhibit: The Inhibit pin is an open-collector/drain negative logic 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 control is active, the input current drawn by the regula- tor is significantly reduced. If the Inhibit pin is left open-circuit, the module will produce an output when- ever a valid input source is applied. Vo Adjust: A 0.1 W, 1 % tolerance (or better) resistor must be connected between this pin and the GND pin to set the output voltage to the desired value. The set point range for the output voltage is from 0.8 V to 2.5 V. The resistor required for a given output voltage may be cal- culated from the following formula. If left open circuit, the module output will default to its lowest output voltage value. For further information on the adjustment of the output voltage consult the related application note. Rset = 10 k · 0.8 V – 2.49 k Vout – 0.8 V The specification table gives the preferred resistor values for a number of standard output voltages. Vo Sense: The sense input allows the regulation circuit to compensate for voltage drop between the module and the load. For optimal voltage accuracy Vo Sense should be connected to Vout. It can also be left disconnected. Track: This is an analog control input that enables the output voltage to follow an external voltage. This pin becomes active typically 20 ms after the input voltage has been applied, and allows direct control of the output voltage from 0 V up to the nominal set-point voltage. Within this range the output will follow the voltage at the Track pin on a volt-for-volt basis. When the control voltage is raised above this range, the module regulates at its set-point voltage. The feature allows the output voltage to rise simultaneously with other modules pow- ered from the same input bus. If unused, the input should be connected to V in. Note: Due to the under-voltage lockout feature, the output of the module cannot follow its own input voltage during power up. For more information, consult the related application note. Margin Down: When this input is asserted to GND, the output voltage is de creased by 5% from the nominal. The input requires an open-collector (open-drain) interface. It is not TTL compatible. A lower percent change can be accomodated with a series resistor. If unused, this input may be left unconnected. For further informa- tion, consult the related application note. Margin Up: When this input is asserted to GND, the output voltage is increased by 5%. The input requires an open-collector (open-drain) interface. It is not TTL compatible. The percent change can be reduced with a series resistor. If ununsed, this input may be left un- connected. For further information, consult the related application note.

Ordering Information

Code Description Pkg Ref. (2) AH Horiz. T/H (EUK) AS SMD, Standard (3) (EUL) Output Voltage (PTH03020/G72xx) Code V oltage W 0.8 V – 2.5 V (Adjust) Notes: (1) Add “T” to end of part number for tape and reel on SMD packages only. (2) Reference the applicable package reference drawing for the dimensions and PC board layout (3) “Standard” option specifies 63/37, Sn/Pb pin solder material. PTH03020W —3.3-V Input 22-A, 3.3-V Input Non-Isolated Wide-Output Adjust Power Module SL TS206C – MAY 2003 – REVISED DECEMBER 2003

For technical support and further information, visit http://power.ti.com Environmental & Absolute Maximum Ratings (Voltages are with respect to GND) Characteristics Symbols Conditions Min Typ Max Units Track Input Voltage V track –0.3 — V in + 0.3 V Operating T emperature Range T a Over Vin Range –40 — 85 °C Solder Reflow Temperature T reflow Surface temperature of module body or pins 235 (i) °C Storage T emperature T s — –40 — 125 °C Mechanical Shock Per Mil-STD-883D, Method 2002.3 — 500 — G’s1 msec, ½ Sine, mounted Mechanical Vibration Mil-STD-883D, Method 2007.2 Suffix H — 20 — G’s20-2000 Hz Suffix S — 10 — Weight — — 5 — grams Flammability — Meets UL 94V-O Notes: (i) During reflow of SMD package version do not elevate peak temperature of the module, pins or internal components above the st ated maximum. PTH03020W —3.3-V Input 22-A, 3.3-V Input Non-Isolated Wide-Output Adjust Power Module SL TS206C – MAY 2003 – REVISED DECEMBER 2003 Specifications (Unless otherwise stated, T a =25 °C, Vin =3.3 V, Vout =2 V, Cin =1,000 µF, Cout =0 µF, and Io =Iomax) PTH03020W Characteristics Symbols Conditions Min Typ Max Units Output Current I o 60 °C, 200 LFM airflow 0 — 22 (1) A25 °C, natural convection 0 — 22 (1) Input Voltage Range V in Over Io range 2.95 (2) — 3.65 V Set-Point Voltage T olerance V o tol — — ±2 (3) %Vo T emperature Variation ∆Regtemp –40 °C <Ta < +85 °C — ±0.5 — %V o Line Regulation ∆Regline Over Vin range — ±5 — mV Load Regulation ∆Regload Over Io range — ±5 — mV T otal Output Variation ∆Regtot Includes set-point, line, load, ——± 3 (3) %Vo–40 °C ≤ Ta ≤ +85 °C Efficiency η Io =10 A R SET = 2.21 kΩ Vo = 2.5 V — 95 — RSET = 4.12 kΩ Vo = 2.0 V — 94 — RSET = 5.49 kΩ Vo = 1.8 V — 93 — % RSET = 8.87 kΩ Vo = 1.5 V — 91 — RSET = 17.4 kΩ Vo = 1.2 V — 90 — RSET = 36.5 kΩ Vo = 1.0 V — 88 — Vo Ripple (pk-pk)V r 20 MHz bandwidth — 20 — mVpp Over-Current Threshold I o trip Reset, followed by auto-recovery — 41 — A Transient Response 1 A/µs load step, 50 to 100 % I omax, Cout =330 µF ttr Recovery Time — 50 — µSec ∆Vtr Vo over/undershoot — 100 — mV Margin Up/Down Adjust V o adj — ± 5 — % Margin Input Current (pins 9 /10)I IL margin Pin to GND — – 8 (4) —µ A Track Input Current (pin 8)I IL track Pin to GND — — –130 (5) µA Track Slew Rate Capability dV track/dt C out ≤ Cout(max)— — 1 V/ms Under-Voltage Lockout UVLO V in increasing — 2.8 2.95 VVin decreasing 2.2 2.7 — Inhibit Control (pin3)R eferenced to GND Input High Voltage V IH Vin –0.5 — Open (5) V Input Low Voltage VIL –0.2 — 0.8 Input Low Current IIL inhibit Pin to GND — –130 — µA Input Standby Current I in inh Inhibit (pin 3) to GND, Track (pin 8) open — 10 — mA Switching Frequency ƒ s Over Vin and Io ranges 250 300 340 kHz External Input Capacitance C in 1,000 (6) ——µ F External Output Capacitance C out Capacitance value non-ceramic 0 330 ( 7) 11,000 (8) µFceramic 0 — 300 Equiv. series resistance (non-ceramic)4 (9) ——m Ω Reliability MTBF Per Bellcore TR-332 4.9 — — 10 6 Hrs50 % stress, Ta =40 °C, ground benign Notes: (1) See SOA curves or consult factory for appropriate derating. (2) The minimum input voltage is equal to 2.95 V or Vout + 0.5 V, whichever is greater. (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 1 % with 100 ppm/°C or better temperature stability. (4) A small low-leakage (<100 nA) MOSFET is recommended to control this pin. The open-circuit voltage is less than 1 Vdc. (5) This control pin has an internal pull-up to the input voltage Vin. If it is left open-circuit the module will operate when i nput power is applied. A small low-leakage (<100 nA) MOSFET is recommended for control. For further information, consult the related application note. (6) A 1,000 µF electrolytic input capacitor is required for proper operation. The capacitor must be rated for a minimum of 700 m Arms of ripple current. (7) An external output capacitor is not required for basic operation. Adding 330 µF of distributed capacitance at the load will improve the transient response. (8) This is the calculated maximum. The minimum ESR limitation will often result in a lower value. Consult the application notes for further guidance. (9) This is the typcial ESR for all the electrolytic (non-ceramic) output capacitance. Use 7 m Ω as the minimum when using max-ESR values to calculate.

For technical support and further information, visit http://power.ti.com Note A: Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the converter. Note B: SOA 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 4 in. × 4 in. double-sided PCB with 1 oz. copper. Characteristic Data; Vin =3.3V (See Note A) Efficiency vs Load Current Power Dissipation vs Load Current Output Ripple vs Load Current Safe Operating Area; Vin =3.3 V (See Note B) All Output Voltages PTH03020W —3.3-V Input 22-A, 3.3-V Input Non-Isolated Wide-Output Adjust Power Module SL TS206C – MAY 2003 – REVISED DECEMBER 2003 0 5 10 15 20 Iout (A ) Ambient Temperature (°C) 400LFM 200LFM 100LFM Nat Conv Airflow 100 0 4 8 12 16 20 Iout - (A ) Efficiency - % 2.5V 1.8V 1.5V 1.2V 1.0V VOUT 0 4 8 1 21 62 0 Iout - (A ) Ripple - mV 1.5V 1.8V 1.2V 1.0V 2.5V VOUT 0 4 8 12 16 20 Iout - (A ) Power Dissipation - W

For technical support and further information, visit http://power.ti.com Capacitor Recommendations for the PTH03020 & PTH05020 Series of Power Modules Input Capacitor The recommended input capacitor(s) is determined by the 1,000 µF (1) minimum capacitance and 700 mArms minimum ripple current rating. Ripple current and <100 m Ω equivalent series resistance (ESR) values are the major considerations, along with temperature, when designing with different types of capacitors. Unlike polymer tantalum, conventional tan- talum capacitors have a recommended minimum voltage rating of 2 × (maximum DC voltage + AC ripple). This is standard practice to insure reliability. For improved ripple reduction on the input bus, ceramic capacitors may be substituted for electrolytic t ypes using the minimum required capacitance. Output Capacitors (Optional) For applications with load transients (sudden changes in load current), regulator response will benefit from an external output capacitance. The recommended output capacitance of 330 µF will allow the module to meet its transient response specification (see product data sheet). For most applications, a high quality computer-grade aluminum electrolytic capacitor is most suitable. These capacitors provide adequate decoupling over the frequency range, 2 kHz to 150 kHz, and are suitable when ambient temperatures are above 0 °C. For operation below 0 °C, tantalum, ceramic or Os-Con type capacitors are recom- mended. When using one or more non-ceramic capacitors, the calculated equivalent ESR should be no lower than 4 mΩ (7 mΩ using the manufacturer’s maximum ESR for a single capacitor). A list of preferred low-ESR type capacitors are identified in T able 2-1. Ceramic Capacitors Above 150 kHz the performance of aluminum electrolytic capacitors becomes less effective. T o further improve the reflected input ripple current or the output transient response, multilayer ceramic capacitors can also be added. Ceramic capacitors have very low ESR and their resonant frequency is higher than the bandwidth of the regulator. When used on the output their combined ESR is not critical as long as the total value of ceramic capacitance does not exceed 300 µF. Also, to prevent the formation of local resonances, do not place more than five identical ce- ramic capacitors in parallel with values of 10 µF or greater. Tantalum Capacitors Tantalum type capacitors can be used at both the input and output, and are recommended for applications where the ambient operating temperature can be less than 0 °C. The AVX TPS, Sprague 593D/594/595 and Kemet T495/ T510 capacitor series are suggested over many other tantalum types due to their higher rated surge, power dissipation, and ripple curr ent capability. As a caution many general purpose tantalum capacitors have consider- ably higher ESR, reduced power dissipation and lower ripple current capability. These capacitors are also less reliable when determining their power dissipation and surge current capability. T antalum 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 will be encoun- tered well before the maximum capacitance value is reached. Capacitor Table T able 2-1 identifies 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 ripple current rating and ESR (at 100kHz) are critical parameters necessary to insure both optimum regulator performance and long capacitor life. Designing for Very Fast Load Transients The transient response of the DC/DC converter has been characterized using a load transient with a di/dt of 1 A/µs. The typical voltage deviation for this load transient is given in the data sheet specification table using the optional value of output capacitance. As the di/dt of a transient is increased, the response of a converter’s regu- lation circuit ultimately depends on its output capacitor decoupling network. This is an inherent limitation with 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 that specified in the data sheet, or the total amo unt of load capacitance is above 3,000 µF, the selection of output capacitors becomes more important. For further guidance consult the separate application note, “ Selecting Output Capacitors for PTH Products in High-Performance Applica- tions.” PTH03020W & PTH05020W

Application Notes continued For technical support and further information, visit http://power.ti.com Table 2-1: Input/Output Capacitors (1) Total capacitance of 940 µF is acceptable based on the combined ripple current rating. PTH03020W & PTH05020W epyT,rodneVroticapaC )elytS(seireS scitsiretcarahCroticapaCy titnauQ gnikroW egatloV )Fµ(eulaVR SE.xaM zHk001ta mumixaMC°501 elppiR )smrI(tnerruC eziSlacisyhP )mm( tupnI suB tuptuO suB rebmuNtraProdneV :munimulA,cinosanaP )laidaR(CF KF) DMS( V01 V01 V52 V01 065 0001 0001 0001 090.0 Ω 860.0 Ω 0600 Ω 080.0 Ω Am557 Am0501 Am0011 Am058 01 × 5.21 01 × 61 5.21 × 5.31 01 × 2.01 165A1CFUEE 201A1CFUEE Q201E1KFVEE P201A1KFVEE detinU: noc-imehC )DMS(munimulA-yloP,AXP )laidaR(noc-sO,XF )laidaR(munimulA,ZXL V3.6 V3.6 V01 V01 074 0001 086 0001 020.0 Ω 310.0 Ω 090.0 Ω 860.0 Ω Am0314 Am5394 Am067 Am0501 01 × 7.7 01 × 5.01 01 × 5.21 01 × 61 )1( PT08JM174CV3.6AXP M0001XF6 LL21X01M186BV01ZXL LL61X01M201BV01ZXL ,nocihciN: munimulA )laidaR(DH )laidaR(MP V3.6 V01 0001 0001 350.0 Ω 560.0 Ω Am0301 Am0601 01 × 5.21 61 × 51 RPM201J0DHU 6HPM201A1MPU :noc-sO,oynaS )laidaR(PS )DMS(PVS V01 V01 074 065 510.0 Ω 310.0 Ω Am0054> Am0025> 01 × 5.01 01 × 7.21 )1( M074PS01 M065PVS01 :munimulA-yloP,cinosanaP )DMS(AW )DMS(ES/S V01 V3.6 074 081 710.0 Ω 500.0 Ω Am0054 Am0004 01 × 2.01 3.7 × 3.4 × 2.4 2 )1( P174A1AWFEE R181J0ESFEE :mulatnaT,XVA )DMS(SPTV 01 V01 074 074 540.0 Ω 060.0 Ω Am3271 Am6281 L3.7 × W7.5 × H1.4 2 )1( 2 )1( 5400R010M774ESPT 0600R010M774VSPT :)DMS(temeK tnaT-yloP,025T cinagrO/tnaT-yloP,035T V01 V01 V3.6 033 033 074 040.0 Ω 510.0 Ω 210.0 Ω Am0081 Am0083> Am0024 W3.4 × L3.7 × H0.4 2 )1( SA010M733X025T SA010M733X035T SA600M774X035T eugarpS-yahsiV )DMS(mulatnaT,D595 )laidaR(noc-sO,AS49 V01 V61 074 0001 001.0 Ω 510.0 Ω Am0441 Am0479 L2.7 × W6 × H1.4 61 × 52 2 )1( T2R0100X774D595 PBH6100X801AS49 )DMS(R5XcimareC,temeKV 61 V3.6 200.0 Ω 200.0 Ω —e sac0121 mm5223 CAP4M601C0121C CAP9K674C0121C cimareC,ataruMR 5X) DMS(V 3.6 V3.6 V61 V61 001 200.0 Ω —e sac0121 mm5223 M701J06RE23MRG M674J06RE23MRG K622C16RE23MRG K601C16RD23MRG cimareC,KDTR 5X) DMS(V 3.6 V3.6 V61 V61 001 200.0 Ω —e sac0121 mm5223 TM701J0R5X5223C TM674J0R5X5223C TM622C1R5X5223C TM601C1R5X5223C

For technical support and further information, visit http://power.ti.com Adjusting the Output Voltage of the PTH03020W & PTH05020W Wide-Output Adjust Power Modules The Vo Adjust control (pin 4) sets the output voltage of the PTH03020W and PTH05020W products. The adjustment range of the PT03020W (3.3-V input) is from 0.8 V to 2.5 V 1, and the PTH05020W (5-V input) from 0.8 V to 3.6 V. The adjustment method requires the addition of a single external resistor, R set, that must be connected directly between the Vo Adjust and GND pins 2. T able 1-1 gives the preferred value of the external resistor for a number of standard voltages, along with the actual output voltage that this resistance value provides. For other output voltages the value of the required resistor can either be calculated using the following formula, or simply selected from the range of values given in Table 1-2. Figure 1-1 shows the placement of the required resistor. Rset = 10 kΩ · 0.8 V – 2.49 kΩVout – 0.8 V Figure 1-1; Vo Adjust Resistor Placement Notes: 1. Modules that operate from a 3.3-V input bus should not be adjusted higher than 2.5 V . 2. Use a 0.1 W resistor. The tolerance should be 1 %, with temperature stability of 100 ppm/°C (or better). Place the resistor as close to the regulator as possible. Connect the resistor directly between pins 4 and 7 using dedicated PCB traces. 3. Never connect capacitors from V o Adjust to either GND or Vout. Any capacitance added to the Vo Adjust pin will affect the stability of the regulator. PTH05020W COUT 330µF GND VOUT VO Sense [Note 3] VO AdjGND VO Sense VOUT R SET

0.800 Open

0.825 318 k Ω 0.850 158 k Ω 0.875 104 k Ω 0.900 77.5 k Ω 0.925 61.5 k Ω 0.950 50.8 k Ω 0.975 43.2 k Ω 1.000 37.5 k Ω 1.025 33.1 k Ω 1.050 29.5 k Ω 1.075 26.6 k Ω 1.100 24.2 k Ω 1.125 22.1 k Ω 1.150 20.4 k Ω 1.175 18.8 k Ω 1.200 17.5 k Ω 1.225 16.3 k Ω 1.250 15.3 k Ω 1.275 14.4 k Ω 1.300 13.5 k Ω 1.325 12.7 k Ω 1.350 12.1 k Ω 1.375 11.4 k Ω 1.400 10.8 k Ω 1.425 10.3 k Ω 1.450 9.82 k Ω 1.475 9.36 k Ω 1.50 8.94 k Ω 1.55 8.18 k Ω 1.60 7.51 k Ω 1.65 6.92 k Ω 1.70 6.4 k Ω 1.75 5.93 k Ω 1.80 5.51 k Ω 1.85 5.13 k Ω 1.90 4.78 k Ω 1.95 4.47 k Ω Vout (Standard) R set (Pref’d Value) V out (Actual) 3.3 V 2 698 Ω 3.309V 2.5 V 2.21 k Ω 2.502 V 2 V 4.12 k Ω 2.010 V 1.8 V 5.49 k Ω 1.803 V 1.5 V 8.87 k Ω 1.504 V 1.2 V 17.4 k Ω 1.202 V 1 V 36.5 k Ω 1.005 V 0.8 V Open 0.8 V Table 1-1; Preferred Values of R set for Standard Output Voltages PTH03020W & PTH05020W Table 1-2; Output Voltage Set-Point Resistor Values Va Req’dR set Va Req’dR set 2.00 4.18 k Ω 2.05 3.91 k Ω 2.10 3.66 k Ω 2.15 3.44 k Ω 2.20 3.22 k Ω 2.25 3.03 k Ω 2.30 2.84 k Ω 2.35 2.67 k Ω 2.40 2.51 k Ω 2.45 2.36 k Ω 2.50 2.22 k Ω 2.55 2.08 k Ω 2.60 1.95 k Ω 2.65 1.83 k Ω 2.70 1.72 k Ω 2.75 1.61 k Ω 2.80 1.51 k Ω 2.85 1.41 k Ω 2.90 1.32 k Ω 2.95 1.23 k Ω 3.00 1.15 k Ω 3.05 1.07 k Ω 3.10 988 Ω 3.15 914 Ω 3.20 843 Ω 3.25 775 Ω 3.30 710 Ω 3.35 647 Ω 3.40 587 Ω 3.45 529 Ω 3.50 473 Ω 3.55 419 Ω 3.60 367 Ω

For technical support and further information visit http://power.ti.com PTH Series of Wide-Output Adjust Power Modules (3.3/5-V Input) Features of the PTH Family of Non-Isolated Wide Output Adjust Power Modules Point-of-Load Alliance The PTH family of non-isolated, wide-output adjust power modules from T exas Instruments are optimized for applications that require a flexible, high performance module that is small in size. These products are part of the “Point-of-Load Alliance” (POLA), which ensures compatible footprint, interoperability and true second sourcing for customer design flexibility. The POLA is a collaboration between T exas Instruments, Artesyn T ech- nologies, and Astec Power to offer customers advanced non-isolated modules that provide the same functionality and form factor. Pr oduct series covered by the alliance includes the PTHxx050W (6 A), PTHxx060W (10 A), PTHxx010W (15/12 A), PTHxx020W (22/18 A), and the PTHxx030W (30/26 A). From the basic, “Just Plug it In” functionality of the 6-A modules, to the 30-A rated feature-rich PTHxx030W, these products were designed to be very flexible, yet simple to use. The features vary with each product. T able 3-1 provides a quick reference to the available features by product and input bus voltage. Table 3-1; Operating Features by Series and Input Bus Voltage For simple point-of-use applications, the PTHxx050W provides operating features such as an on/off inhibit, output voltage trim, pre-bias startup (3.3/5-V input only), and over-current protection. The PTHxx060W (10 A), and PTHxx010W (15/12 A) include an output voltage sense, and margin up/down controls. Then the higher Series Input Bus I OUT

12 V 6 A  

Adjust (Trim) Thermal Shutdown Pre-Bias Startup Margin Up/Down Auto-Track™ output current, PTHxx020W and PTHxx030W products incorporate over-temperature shutdown protection. All of the products referenced in T able 3-1 include Auto- T rack™. This is a feature unique to the PTH family, and was specifically designed to simplify the task of se- quencing the supply voltage in a power system. These and other features are described in the following sections. Soft-Start Power Up The Auto-T rack feature allows the power-up of multiple PTH modules to be directly controlled from the Track pin. However in a stand-alone configuration, or when the Auto-T rack feature is not being used, the Track pin should be directly connected to the input voltage, V in (see Figure 3-1). Figure 3–1 5 V C IN 1,000 µF C OUT 330 µF GND GND 3.3 V R SET, 698Ω When the Track pin is connected to the input voltage the Auto-T rack function is permanently disengaged. This allows the module to power up entirely under the control of its internal soft-start circuitry. When power up is under soft-start control, the output voltage rises to the set-point at a quicker and more linear rate. Figure 3–2 Vin (1 V/Div) Vout (1 V/Div) Iin (5 A/Div) HORIZ SCALE: 5 ms/Div

For technical support and further information visit http://power.ti.com PTH Series of Wide-Output Adjust Power Modules (3.3/5-V Input) Figure 3–6; Simultaneous Power Up with Auto-Track Control PTH05010W Track VIN VO GNDInhibit PTH05020W Track VIN VO GNDInhibit

7 C OUT

Vo2 =1.8 V Vo1 =3.3 V +5 V 0 V On/Off Control 1 = Power Down 0 = Power Up BSS138 0.1 µF 100 k R 2 698 R 3 5k49 Figure 3–5; Sequenced Power Up & Power Down Using Auto-Track Figure 3–7; Simultaneous Power Down with Auto-Track Control Vo1 (1 V/Div) Vo2 (1 V/Div) On/Off Input (5 V/Div) HORIZ SCALE: 10 ms/Div Vo1 (1 V/Div) Vo2 (1 V/Div) On/Off Input (5 V/Div) HORIZ SCALE: 10 ms/Div

For technical support and further information visit http://power.ti.com PTH Series of Wide-Output Adjust Power Modules (3.3/5-V Input) Margin Up/Down Controls The PTHxx060W, PTHxx010W, PTHxx020W, and PTHxx030W products incorporate Margin Up and Margin Down control inputs. These controls allow the output voltage to be momentarily adjusted 1, either up or down, by a nominal 5 %. This provides a convenient method for dynamically testing the operation of the load circuit over its supply margin or range. It can also be used to verify the function of supply voltage supervisors. The ±5 % change is applied to the adjusted output voltage, as set by the external resistor, R set at the Vo Adjust pin. The 5 % adjustment is made by pulling the appropriate margin control input directly to the GND terminal 2. A low-leakage open-drain device, such as an n-channel MOSFET or p-channel JFET is recommended for this purpose 3. Adjustments of less than 5 % can also be accom- modated by adding series resistors to the control inputs. The value of the resistor can be selected from T able 3-2, or calculated using the following formula. Up/Down Adjust Resistance Calculation T o reduce the margin adjustment to something less than 5 %, series resistors are required (See R D and R U in Figure 3-8). For the same amount of adjustment, the resistor value calculated for R U and R D will be the same. The formulas is as follows. RU or RD = 499 – 99.8 k Ω ∆% Where ∆ % = The desired amount of margin adjust in percent. Notes: 1.The Margin Up* and Margin Dn* controls were not intended to be activated simultaneously. If they are their affects on the output voltage may not completely cancel, resulting in the possibility of a slightly higher error in the output voltage set point. 2.The ground reference should be a direct connection to the module GND at pin 7 (pin 1 for the PTHxx050). This will produce a more accurate adjustment at the load circuit terminals. The transistors Q 1 and Q2 should be located close to the regulator. 3.The Margin Up and Margin Dn control inputs are not compatible with devices that source voltage. This includes TTL logic. These are analog inputs and should only be controlled with a true open-drain device (preferably a discrete MOSFET transistor). The device selected should have low off-state leakage current. Each input sources 8 µA when grounded, and has an open-circuit voltage of 0.8 V . Figure 3–8; Margin Up/Down Application Schematic Table 3-2; Margin Up/Down Resistor Values % Adjust R U / RD 5 0.0 k Ω 4 24.9 k Ω 3 66.5 k Ω 2 150.0 k Ω 1 397.0 k Ω C out +C in VIN GND MargDn L O A D Q 2 +VOUT Q 1 MargUp +Vo R D R U PTH05010W (Top View ) 10 9 8 543 GND R SET

For technical support and further information visit http://power.ti.com PTH Series of Wide-Output Adjust Power Modules (3.3/5-V Input) Pre-Bias Startup Capability Only selected products in the PTH family incorporate this capability. Consult T able 3-1 to identify which products are compliant. A pre-bias startup condition occurs as a result of an external voltage being present at the output of a power module prior to its output becoming active. This often occurs in com- plex digital systems when current from another power source is backfed through a dual-supply logic component, such as an FPGA or ASIC. Another path might be via clamp diodes as part of a dual-supply power-up sequencing arrangement. A prebias can cause problems with power modules that incorporate synchronous rectifiers. This is because under most operating conditions, these types of modules can sink as well as source output current. The PTH family of power modules incorporate synchro- nous rectifiers, but will not sink current during startup or whenever the Inhibit pin is held low. However, to ensure satisfactory operation of this function, certain conditions must be maintained.

2 Figure 3-9 shows an application

demonstrating the pre-bias startup capability. The start- up waveforms are shown in Figure 3-10. Note that the output current from the PTH03010W (I o) shows negli- gible current until its output voltage rises above that backfed through diodes D 1 and D2. Note: The pre-bias start-up feature is not compatible with Auto-Track. When the module is un der Auto-Track control, it will sink current if the output voltage is below that of a back-feeding source. To ensure a pre- bias hold-off one of two approaches must be followed when input power is applied to the module. The Auto-Track function must either be disabled 3, or the module’s output held off (for at least 50 ms) using the Inhibit pin. Either approach ensures that the Track pin volt- age is above the set-point voltage at start up. Notes 1.Startup includes the short delay (approx. 10 ms) prior to the output voltage rising, followed by the rise of the output voltage un der the module’s internal soft-start control. Startup is complete when the output voltage has risen to either the set-point voltage or the voltage at the Track pin, whichever is lowest. 2.T o ensure that the regulator does not sink current when power is first applied (even with a ground signal applied to the Inhibit control pin), the input voltage must always be greater than the output voltage throughout the power-up and power-down sequence. 3.The Auto-T rack function can be disabled at power up by immediately applying a voltage to the module’s Track pin that is greater than its set-point voltage. This can be easily accomplished by connecting the Track pin to V in. Vo = 2.5 V VIN = 3.3 V R 2 2k21 ASIC VCORE VCCIO Io PTH03010W Track V IN V O GNDInhibit Vadj Sense C IN 330 µF + C OUT 330 µF Figure 3–9; Application Circuit Demonstrating Pre-Bias Startup Vin (1 V/Div) Vo (1 V/Div) Io (5 A/Div) HORIZ SCALE: 5 ms/Div Figure 3–10; Pre-Bias Startup Waveforms

For technical support and further information visit http://power.ti.com PTH Series of Wide-Output Adjust Power Modules (3.3/5-V Input) Remote Sense The PTHxx060W, PTHxx010W, PTHxx020W, and PTHxx030W products incorporate an output voltage sense pin, V o Sense. The Vo Sense pin should be connected to Vout at the load circuit (see data sheet standard appli- cation). A remote sense improves the load regulation performance of the module by allowing it to compensate for any ‘IR’ voltage drop between itself and the load. An IR drop is caused by the high output current flowing through the small amount of pin and trace resistance. Use of the remote sense is optional. If not used, the V o Sense pin can be left open-circuit. An internal low- value resistor (15- Ω or less) is connected between the Vo Sense and Vout. This ensures the output voltage remains in regulation. With the sense pin connected, the difference between the voltage measured directly between the Vout and GND pins, and that measured from Vo Sense to GND, is the amount of IR drop being compensated by the regulator. This should be limited to a maximum of 0.3 V . Note: The remote sense feature is not designed to compensate for the forward drop of non-linear or frequency dependent components that may be placed in series with the converter output. Examples include OR-ing diodes, filter inductors, ferrite beads, and fuses. When these components are enclosed by the remote sense connection they are effectively placed inside the regulation control loop, which can adversely affect the stability of the regulator.

www.ti.com 2-Jun-2025 PACKAGING INFORMATION Orderable part number Status (1) Material type (2) Package | Pins Package qty | Carrier RoHS (3) Lead finish/ Ball material (4) MSL rating/ Peak reflow (5) Op temp (°C) Part marking (6) PTH03020WAH Active Production Through-Hole Module (EUK) | 10 20 | TIW TRAY In-Work SN N/A for Pkg Type -40 to 85 PTH03020WAH.B Active Production Through-Hole Module (EUK) | 10 20 | TIW TRAY In-Work SN N/A for Pkg Type -40 to 85 PTH03020WAS Active Production Surface Mount Module (EUL) | 10 20 | TIW TRAY No SNPB Level-1-235C-UNLIM/ Level-3-260C-168HRS -40 to 85 PTH03020WAS.B Active Production Surface Mount Module (EUL) | 10 20 | TIW TRAY No SNPB Level-1-235C-UNLIM/ Level-3-260C-168HRS -40 to 85 PTH03020WAST Active Production Surface Mount Module (EUL) | 10 200 | SMALL T&R No SNPB Level-1-235C-UNLIM/ Level-3-260C-168HRS -40 to 85 PTH03020WAST.B Active Production Surface Mount Module (EUL) | 10 200 | SMALL T&R No SNPB Level-1-235C-UNLIM/ Level-3-260C-168HRS -40 to 85 PTH03020WAZ Active Production Surface Mount Module (EUL) | 10 20 | TIW TRAY In-Work SNAGCU Level-3-260C-168 HR -40 to 85 PTH03020WAZ.B Active Production Surface Mount Module (EUL) | 10 20 | TIW TRAY In-Work SNAGCU Level-3-260C-168 HR -40 to 85 PTH03020WAZT Active Production Surface Mount Module (EUL) | 10 200 | SMALL T&R In-Work SNAGCU Level-3-260C-168 HR -40 to 85 PTH03020WAZT.B Active Production Surface Mount Module (EUL) | 10 200 | SMALL T&R In-Work SNAGCU Level-3-260C-168 HR -40 to 85 (1) Status: For more details on status, see our product life cycle. (2) Material type: When designated, preproduction parts are prototypes/experimental devices, and are not yet approved or released for full production. Testing and final process, including without limitation quality assurance, reliability performance testing, and/or process qualification, may not yet be complete, and this item is subject to further changes or possible discontinuation. If available for ordering, purchases will be subject to an additional waiver at checkout, and are intended for early internal evaluation purposes only. These items are sold without warranties of any kind. (3) RoHS values: Yes, No, RoHS Exempt. See the TI RoHS Statement for additional information and value definition. (4) Lead finish/Ball material: Parts may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two lines if the finish value exceeds the maximum column width. Addendum-Page 1

www.ti.com 2-Jun-2025 (5) MSL rating/Peak reflow: The moisture sensitivity level ratings and peak solder (reflow) temperatures. In the event that a part has multiple moisture sensitivity ratings, only the lowest level per JEDEC standards is shown. Refer to the shipping label for the actual reflow temperature that will be used to mount the part to the printed circuit board. (6) Part marking: There may be an additional marking, which relates to the logo, the lot trace code information, or the environmental category of the part. Multiple part markings will be inside parentheses. Only one part marking contained in parentheses and separated by a "~" will appear on a part. If a line is indented then it is a continuation of the previous line and the two combined represent the entire part marking for that device. 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. Addendum-Page 2

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