PTH03050WAZ.B

Texas Instruments

The PTH03050 is one of the smallest

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PTH03050W TI | Alldatasheet

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Technical content

Features

Up to 6-A Output Current
3.3-V Input Voltage
Wide-Output Voltage Adjust (0.8 V to 2.5 V)
Efficiencies up to 94 %
103 W/in³ Power Density
On/Off Inhibit
Pre-Bias Startup
Under-Voltage Lockout
Operating Temp: –40 to +85 °C
Auto-Track™ Sequencing
Output Over-Current Protection (Non-Latching, Auto-Reset)
IPC Lead Free 2
Safety Agency Approvals: UL 1950, CSA 22.2 950, EN60950 VDE (Pending)
Point-of-Load Alliance (POLA) Compatible Auto-Track™ Sequencing Pin Configuration Pin Function

1 GND

2 Track

4 Inhibit *

Denotes negative logic: Open = Normal operation Ground = Function active NOMINAL SIZE = 0.87 in x 0.5 in (22,1 mm x 12,57 mm) PTH03050W —3.3-V Input SL TS212C – MA Y 2003 – REVISED MAY 2004 Standard Application

Description

The PTH03050 is one of the smallest non-isolated power modules from Texas Instruments that features Auto-Track™. Auto-Track simplifies supply voltage sequencing in power systems by enabling modules to track each other, or any other external voltage, during power up and power down. Although small in size (0.87 in × 0.5 in), these modules are rated for up to 6 A of output current, and are an ideal choice in applications where space, performance, and a power-up sequencing capability are important attributes. The product provides high-performance step-down conversion from a 3.3-V input bus voltage. The output voltage of the PTH03050W can be set to any voltage Rset = Required to set the output voltage to a value higher than 0.8 V. (See spec. table for values) Cin = Required 100 µF Co1 = Optional 100 µF capacitor Co2 = Optional 10 µF ceramic capacitor for reduced output ripple. over the range, 0.8 V to 2.5 V, using a single r esistor. Other operating features include an on/off inhibit, output voltage adjust (trim), and output over-current protection. For high efficiency these parts employ a synchronous rectifier output stage, but a pre-bias hold-off capability ensures that the output will not sink current during startup. Target applications include telecom, industrial, and general purpose circuits, including low-power dual-voltage systems that use a DSP, microprocessor, ASIC, or FPGA. Package options include both through- hole and surface mount configurations. VIN Inhibit GND GND VOUT Track R SET 1 %, 0.1 W (Required) Co1 100 µF Electrolytic (Optional) CIN 100 µF (Required) Co 2 10 µF Ceramic (Optional) PTH03050W (Top View)

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. Vo Adjust: A 0.1 W 1 % resistor must be directly connected between this pin and GND to set the output voltage to a value higher than 0.8 V. The temperature stability of the resistor should be 100 ppm/°C (or better). The set- point range for the output voltage is from 0. 8 V to 2.5 V. The resistor value required for a given output voltage may be calculated from the following formula. If this pin is left open circuit, the output voltage will default to its lowest value. For further information on output volt- age adjustment consult the related application note. Rset = 10 kΩ · 0.8 V – 2.49 kΩ Vout – 0.8 V The specification table gives the preferred resistor values for a number of standard output voltages. 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. 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.

Ordering Information

Code Description Pkg Ref. (2) AH Horiz. T/H (EUU) AS SMD, Standard (3) (EUV) Output Voltage (PTH03050/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. 6-A, 3.3-V Input Non-Isolated Wide-Output Adjust Power Module PTH03050W —3.3-V Input SL TS212C – MA Y 2003 – REVISED MA Y 2004

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 Temperature Range T a Over Vin Range –40 (i) — 85°C Solder Reflow Temperature T reflow Surface temperature of module body or pins 235 (ii) °C Storage Temperature T s — –40 — 125°C Mechanical Shock Per Mil-STD-883D, Method 2002.3 —50 0 —G ’ s1 msec, ½ Sine, mounted Mechanical Vibration Mil-STD-883D, Method 2007.2 —2 0— G ’ s20-2000 Hz Weight — — 2.9 — grams Flammability — Meets UL 94V-O Notes: (i) For operation below 0 °C the external capacitors m ust bave stable characteristics. use either a low ESR tantalum, Os-Con, o r ceramic capacitor. (ii) During reflow of SMD package version do not elevate peak temperature of the module, pins or internal components above the s tated maximum. 6-A, 3.3-V Input Non-Isolated Wide-Output Adjust Power Module PTH03050W —3.3-V Input SL TS212C – MA Y 2003 – REVISED MAY 2004 Specifications (Unless otherwise stated, T a =25 °C, Vin =3.3 V, Vo =2.5 V, Cin =100 µF, Co1 =0 µF, Co2 =0 µF, and Io =Iomax) PTH03050W Characteristics Symbols Conditions Min Typ Max Units Output Current I o 0.8 V ≤ Vo ≤ 2.5 V, 85 °C, natural convection 0 — 6 (1) A Input Voltage Range V in Over Io range 2.95— 3.65V Set-Point Voltage Tolerance V o tol — — ±2 (2) %Vo Temperature Variation ∆Regtemp –40 °C <Ta < +85 °C — ±0.5 — %V o Line Regulation ∆Regline Over Vin range — ±10 — mV Load Regulation ∆Regload Over Io range — ±12 — mV Total Output Variation ∆Regtot Includes set-point, line, load, ——± 3 (2) %Vo–40 °C ≤ Ta ≤ +85 °C Efficiency η Io =4 A R SET = 2.21 kΩ Vo = 2.5 V — 94 — RSET = 4.12 kΩ Vo = 2.0 V — 92 — RSET = 5.49 kΩ Vo = 1.8 V — 91 — %RSET = 8.87 kΩ Vo = 1.5 V — 90 — RSET = 17.4 kΩ Vo = 1.2 V — 88 — RSET = 36.5 kΩ Vo = 1.0 V — 87 — Vo Ripple (pk-pk) V r 20 MHz bandwidth, Co2 =10 µF ceramic — 20 (3) — mVpp Over-Current Threshold I o trip Reset, followed by auto-recovery — 12 — A Transient Response 1 A/µs load step, 50 to 100 % I omax, Co1 =100 µF ttr Recovery Time — 70 — µSec ∆Vtr Vo over/undershoot — 100 — mV Track Input Current (pin 2) I IL track Pin to GND — — –130 (4) µA Track Slew Rate Capability dV track/dt C out ≤Cout(max) — — 1 V/ms Under-Voltage Lockout UVLO V in increasing — 2.452.8 VVin decreasing 2.2 2.40 — Inhibit Control (pin4) R eferenced to GND Input High Voltage V IH Vin –0.5— Open (4) V Input Low Voltage VIL –0.2 — 0.6 Input Low Current IIL inhibit Pin to GND — –130 — µA Input Standby Current I in inh Inhibit (pin 4) to GND, Track (pin 2) open — 10 — mA Switching Frequency ƒ s Over Vin and Io ranges 550 600 650 kHz External Input Capacitance C in 100 (5) ——µ F External Output Capacitance Co 1, Co2 Capacitance value non-ceramic 0 100 (6) 3,300 (7) µFceramic 0 — 300 Equiv. series resistance (non-ceramic) 4 (8) ——m Ω Reliability MTBF Per Bellcore TR-332 6 ——1 0 6 Hrs50 % stress, Ta =40 °C, ground benign Notes: (1) No derating is required when the module is soldered directly to a 4-layer PCB with 1 oz. copper. (2) The set-point voltage tolerance is affected by the tolerance and stability ofR SET. The stated limit is unconditionally met if R SET has a tolerance of 1 % with 100 ppm/°C or better temperature stability. (3) The pk-pk output ripple voltage is measured with an external 10 µF ceramic capacitor. See the standard application schematic . (4) 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. (5) A 100 µF input capacitor is required for proper operation. The capacitor must be rated for a minimum of 300 mA rms of ripple current. (6) An external output capacitor is not required for basic operation. Adding 100 µF of distributed capacitance at the load will improve the transient response. (7) This is the calculated maximum. The minimum ESR limitation will often result in a lower value. Consult the application notes for further guidance. (8) 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. Typical Characteristics Characteristic Data; Vin =3.3 V (See Note A) Efficiency vs Load Current Power Dissipation vs Load Current Output Ripple vs Load Current (See Note 3 to Table) 6-A, 3.3-V Input Non-Isolated Wide-Output Adjust Power Module PTH03050W —3.3-V Input SL TS212C – MA Y 2003 – REVISED MAY 2004 0.2 0.4 0.6 0.8 1.2 0123456 Iout - Amps Pd - Watts 100 0123456 Iout - Amps Efficiency - % 2.5 V 1.8 V 1.5 V 1.2 V 1.0 V VOUT 0123456 Iout - Amps Ripple - mV 1.8 V 1.5 V 1.2 V 1.0 V 2.5 V VOUT

For technical support and further information, visit http://power.ti.com PTH03050W & PTH05050W Capacitor Recommendations for the PTH03050 & PTH05050 Series of Power Modules Input Capacitor The recommended input capacitor(s) is determined by the 100 µF [1] minimum capacitance and 300 mArms minimum ripple current rating. Ripple current, less than 100 m Ω equivalent series resis- tance (ESR), and temperature are the major considerations when selecting input capacitors. Unlike polymer tantalum, regular tantalum capacitors have a recommended mini- mum voltage rating of 2 × (maximum DC voltage + AC ripple). This is standard practice to ensure reliability. For improved ripple reduction on the input bus, ceramic capacitors may be used to complement electrolytic types and achieve 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 100 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 adequate. These capaci- tors provide decoupling over the frequency range, 2 kHz to 150 kHz, and are suitable when ambient temperatures above 0 °C. For operation below 0 °C tantalum, ceramic or Os-Con type capacitors are recommended. When using one or more non-ceramic capacitors, the calculated equiva- lent ESR should be no lower than 4 m Ω (7 mΩ using the manufacturer’s maximum ESR for a single capacitor). A list of preferred low-ESR type capacitors are identified in Table 1-1. Ceramic Capacitors Above 150 kHz the performance of aluminum electrolytic capacitors becomes less effective. To fur ther 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 consid- erably higher ESR, reduced power dissipation and lower ripple current capability. These capacitors are also less reliable as they have reduced 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 will be encoun- tered well before the maximum capacitance value is reached. Capacitor Table Table 1-1 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.”

For technical support and further information, visit http://power.ti.com Table 1-1: Input/Output Capacitors epyT,rodneVroticapaC )elytS(seireS scitsiretcarahCroticapaCy titnauQ gnikroW egatloV) Fµ(eulaV )RSE(.xaM zHk001ta elppiR.xaM C°58ta )smrI(tnerruC eziSlacisyhP )mm( tupnI suB tuptuO suB rebmuNrodneV cinosanaP )DMS(munimulA,CF )DMS(munimulA-yloP,AW V52 V01 Fµ001 Fµ021 003.0 Ω 530.0 Ω Am054 Am0082 8× 01 3.8 × 9.6 P101E1CFVEE P121A1AWFEE munimulA,cinosanaP )laidaR(CF )DMS(KF V61 V61 022F µ 033F µ 051.0 Ω 061.0 Ω Am555 Am006 01 × 2.01 8× 2.01 122C1CFUEE P133C1KFVEE noC–imehCdetinU )laidaR(noc-sO,SF )DMS(mulA-yloP,AXP )DMS(munimulA,ZVM )laidaR(.mulA-yloP,SP V01 V01 V61 V01 Fµ001 021F µ 022F µ Fµ001 040.0 Ω 720.0 Ω 071.0 Ω 420.0 Ω Am0012 Am0342 Am054 Am0244 3.6 × 8.9 8× 7.6 8× 01 8× 5.11 M001SF01 PT08HM121CV01AXP PT01HM122CV52ZVM 11HM072SP01 munimulA,nocihciN )DMS(munimulA,GW )laidaR(,MP )DMS(mulatnaT,55F V53 V52 V01 001F µ Fµ051 001F µ 051.0 Ω 061.0 Ω 550.0 Ω Am076 Am064 Am0002 01 × 01 01 × 5.11 7.7 × 3.4 SG1RNM101V1GWU HPM151E1MPU NM701A155F oynaS )DMS(noc-sO,PVS )laidaR(noc-sO,PS )DMS(remyloPpacsoPEPT V01 V61 V01 021F µ Fµ001 µ022F 040.0 Ω 520.0 Ω 520.0 Ω Am0052> Am0082> Am0042> 7×8 3.6 × 8.9 3.7 × 7.5 M021PVS01 M001SPS61 LM022EPT01 ,XVAm ulatnaT SPT) DMS(V 01 V01 Fµ001 Fµ022 01.00 Ω 001.0 Ω Am0901> Am4141> L3.7 × W3.4 × H1.4 0010R010M701DSPT 0010R010M722VSPT temeK )DMS(mulA-yloP,025T )DMS(mulatnaT,594T )DMS(.mulA-yloP-007A V01 V01 V3.6 Fµ001 Fµ001 001F µ 080.0 Ω 001.0 Ω 810.0 Ω Am0021 Am0011> Am0092 L3.7 × W7.5 × H0.4 SA010M701D025T SA010M701X594T TA600M701D007A eugarpS-yahsiV )DMS(mulatnaT,D495 ,D595m ulatnaT) DMS( )laidaR(noc-sO,AS49 V01 V01 V01 Fµ051 Fµ021 Fµ001 090.0 Ω 041.0 Ω Ω030.0 Am0011 Am0001> Am0762 L3.7 × W0.6 × H1.4 8× 5.01 T2C0100X751D495 T2D0100X721D595 PBE0100X701AS49 )DMS(R5XcimareC,temeKV 61 V3.6 200.0 Ω 200.0 Ω —e sac0121 mm5223 ]1[ CAP4M601C0121C CAP9K674C0121C cimareC,ataruMR 5X) DMS(V 3.6 V3.6 V61 V61 001 200.0 Ω —e sac0121 mm5223 2 ]1[ 1 ]2[ M701J06RE23MRG M674J06RE23MRG K622C16RE23MRG K601C16RD23MRG cimareC,KDTR 5X) DMS(V 3.6 V3.6 V61 V61 001 200.0 Ω —e sac0121 mm5223 2 ]1[ 1 ]2[ TM701J0R5X5223C TM674J0R5X5223C TM622C1R5X5223C TM601C1R5X5223C [1] Total capacitance of 94 µF is acceptable based on the combined ripple current rating. [2] Small ceramic capacitors may be used to complement electrolytic types at the input to reduce high-frequency ripple current. PTH03050W & PTH05050W

For technical support and further information, visit http://power.ti.com Adjusting the Output Voltage of the PTH03050W & PTH05050W Wide-Output Adjust Power Modules The Vo Adjust control (pin 5) sets the output voltage to a value higher than 0.8 V. The adjustment range of the PT03050W (3.3-V input) is from 0.8 V to 2.5 V 1, and the PTH05050W (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. Table 2-1 gives the preferred value of the external resistor for a number of standard voltages, along with the actual output volt- age 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 2-2. Figure 2-1 shows the placement of the required resistor. Rset = 10 kΩ · 0.8 V – 2.49 kΩVout – 0.8 V Figure 2-1; 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. A 0.05-W resistor may be used. 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 5 and 1 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.

0.800 Open

0.825318 k Ω 0.850 158 k Ω 0.875104 k Ω 0.900 77.5 k Ω 0.92561.5 k Ω 0.950 50.8 k Ω 0.97543.2 k Ω 1.000 37.5 k Ω 1.02533.1 k Ω 1.050 29.5 k Ω 1.07526.6 k Ω 1.100 24.2 k Ω 1.12522.1 k Ω 1.150 20.4 k Ω 1.17518.8 k Ω 1.200 17.5 k Ω 1.22516.3 k Ω 1.250 15.3 k Ω 1.27514.4 k Ω 1.300 13.5 k Ω 1.32512.7 k Ω 1.350 12.1 k Ω 1.37511.4 k Ω 1.400 10.8 k Ω 1.42510.3 k Ω 1.450 9.82 k Ω 1.4759.36 k Ω 1.50 8.94 k Ω 1.55 8.18 k Ω 1.60 7.51 k Ω 1.656.92 k Ω 1.70 6.4 k Ω 1.755 .93 k Ω 1.80 5.51 k Ω 1.855 .13 k Ω 1.90 4.78 k Ω 1.954.47 k Ω Vout (Standard) R set (Pref’d Value) V out (Actual) 3.3 V 1 698 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 2-1; Preferred Values of R set for Standard Output Voltages PTH03050W & PTH05050W Table 2-2; Output Voltage Set-Point Resistor Values Va Req’dR set Va Req’dR set 2.00 4.18 k Ω 2.053.91 k Ω 2.10 3.66 k Ω 2.153.44 k Ω 2.20 3.22 k Ω 2.253.03 k Ω 2.30 2.84 k Ω 2.352.67 k Ω 2.40 2.51 k Ω 2.452.36 k Ω 2.50 2.22 k Ω 2.55 2.08 k Ω 2.60 1.95 k Ω 2.651.83 k Ω 2.70 1.72 k Ω 2.751.61 k Ω 2.80 1.51 k Ω 2.851.41 k Ω 2.90 1.32 k Ω 2.951.23 k Ω 3.00 1.15 k Ω 3.051.07 k Ω 3.10 988 Ω 3.15914 Ω 3.20 843 Ω 3.25775 Ω 3.30 710 Ω 3.35647 Ω 3.40 587 Ω 3.455 29 Ω 3.50 473 Ω 3.55 419 Ω 3.60 367 Ω VIN C IN 100 µF (Required) + C OUT 100 µF (Optional) GND VOUT R SET 1 % 0.1 W PTH03050W Track VIN VO GNDInhibit

For technical support and further information visit http://power.ti.com PTH/PTV 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 POLA™ Compatibility The PTH/PTV family of non-isolated, wide-output adjust power modules from Texas Instruments are optimized for applications that require a flexible, high performance module that is small in size. Each of these products are POLA™ compatible. POLA-compatible products are produced by a number of manufacturers, and offer cus- tomers advanced, non-isolated modules with the same footprint and form factor. POLA parts are also asssured to be interoperable, thereby providing customers with true second- source availability. From the basic, “Just Plug it In” functionality of the 6-A modules, to the 30-A rated feature-rich PTHxx030, these products were designed to be very flexible, yet simple to use. The features vary with each product. Table 3-1 pro- vides a quick reference to the features by product series and input bus voltage. Table 3-1; Operating Features by Series and Input Bus Voltage For simple point-of-use applications, the PTHxx050 provides operating features such as an on/off inhibit, output voltage trim, pre-bias startup, and over-current protection. The PTHxx060 (10 A), and PTHxx010 (15/12 A) include an output voltage sense, and margin up/down controls. Then the higher output current, PTHxx020 and PTHxx030 pr oducts i ncorporate over-temperature shutdown protection. The PTVxx010 and PTVxx020 are similar parts offered in a vertical, single in-line pin (SIP) profile, at slightly lower current ratings. All of the products referenced in Tab le 3-1 include Auto- Track™. This feature was specifically designed to simplify the task of sequencing the supply voltages in a power system. This and other features are described in the fol- lowing sections. Soft-Start Power Up The Auto-Track feature allows the power-up of multiple modules to be directly controlled from their Track pin. However in a stand-alone configuration, or when the Auto-Track feature is not being used, the Track pin should be directly connected to the input voltage, V in (see Fig- ure 3-1). Figure 3–1 5 V C IN 1,000 µF C OUT 330 µF GND GND 3.3 V R SET, 698Ω

0.1 W, 1 %

When the Track pin is connected to the input voltage the Auto-Track 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 Series Input Bus I OUT PTHxx030 On/Off Inhibit PTHxx010 PTHxx020 PTHxx050 PTHxx060 PTVxx010 PTVxx020 Over-Current Output Sense Adjust (Trim) Thermal Shutdown Pre-Bias Startup Margin Up/Down Auto-Track™

For technical support and further information visit http://power.ti.com PTH/PTV 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/PTV Series of Wide-Output Adjust Power Modules (3.3/5-V Input) Margin Up/Down Controls The PTHxx060, PTHxx010, PTHxx020, and PTHxx030 products incorporate Margin Up and Margin Down con- trol 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 resis- tor, 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 Table 3-2, or calculated using the following formula. Up/Down Adjust Resistance Calculation To reduce the margin adjustment to a value less than 5%, series resistors are required (See RD and RU in Figure 3-8). For the same amount of adjustment, the resistor value calculated for RU and RD 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/PTV Series of Wide-Output Adjust Power Modules (3.3/5-V Input) Remote Sense Products with this feature incorporate an output voltage sense pin, Vo Sense. A remote sense improves the load regulation performance of the module by allowing it to compensate for any ‘IR’ vo ltage 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 resis- tance. To use this feature simply connect the V o Sense pin to the Vout node, close to the load circuit (see data sheet standard application). If not used, the Vo 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 betw een 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) PTH03050WAD Active Production Through-Hole Module (EUU) | 6 56 | TIW TRAY Exempt SN N/A for Pkg Type -40 to 85 PTH03050WAD.B Active Production Through-Hole Module (EUU) | 6 56 | TIW TRAY Exempt SN N/A for Pkg Type -40 to 85 PTH03050WAH Active Production Through-Hole Module (EUU) | 6 56 | TIW TRAY Exempt SN N/A for Pkg Type -40 to 85 PTH03050WAH.B Active Production Through-Hole Module (EUU) | 6 56 | TIW TRAY Exempt SN N/A for Pkg Type -40 to 85 PTH03050WAS Active Production Surface Mount Module (EUV) | 6 56 | TIW TRAY No SNPB Level-1-235C-UNLIM/ Level-3-260C-168HRS -40 to 85 PTH03050WAS.B Active Production Surface Mount Module (EUV) | 6 56 | TIW TRAY No SNPB Level-1-235C-UNLIM/ Level-3-260C-168HRS -40 to 85 PTH03050WAST Active Production Surface Mount Module (EUV) | 6 250 | SMALL T&R No SNPB Level-1-235C-UNLIM/ Level-3-260C-168HRS -40 to 85 PTH03050WAST.B Active Production Surface Mount Module (EUV) | 6 250 | SMALL T&R No SNPB Level-1-235C-UNLIM/ Level-3-260C-168HRS -40 to 85 PTH03050WAZ Active Production Surface Mount Module (EUV) | 6 56 | TIW TRAY Exempt SNAGCU Level-3-260C-168 HR -40 to 85 PTH03050WAZ.B Active Production Surface Mount Module (EUV) | 6 56 | TIW TRAY Exempt SNAGCU Level-3-260C-168 HR -40 to 85 PTH03050WAZT Active Production Surface Mount Module (EUV) | 6 250 | SMALL T&R Exempt SNAGCU Level-3-260C-168 HR -40 to 85 PTH03050WAZT.B Active Production Surface Mount Module (EUV) | 6 250 | SMALL T&R Exempt 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. Addendum-Page 1

www.ti.com 2-Jun-2025 (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. (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

IMPORTANT NOTICE AND DISCLAIMER TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATA SHEETS), DESIGN RESOURCES (INCLUDING REFERENCE DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS” AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS. These resources are intended for skilled developers designing with TI products. You are solely responsible for (1) selecting the appropriate TI products for your application, (2) designing, validating and testing your application, and (3) ensuring your application meets applicable standards, and any other safety, security, regulatory or other requirements. These resources are subject to change without notice. TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource. Other reproduction and display of these resources is prohibited. No license is granted to any other TI intellectual property right or to any third party intellectual property right. TI disclaims responsibility for, and you will fully indemnify TI and its representatives against, any claims, damages, costs, losses, and liabilities arising out of your use of these resources. TI’s products are provided subject to TI’s Terms of Sale or other applicable terms available either on ti.com or provided in conjunction with such TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2025, Texas Instruments Incorporated

Product Information

PTH03050WAZ.B specifications and overview.

Summary

6-A, 3.3-V Input Non-Isolated Wide-Output Adjust Power Module REVISED MAY 2004

Description

The PTH03050 is one of the smallest

Source title PTH03050WAZ.B Datasheet(PDF) - Texas Instruments

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