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Contents

README

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TPS65320DQPWPRQ1

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · HTSSOP-14-EP

TPS65320DQPWPRQ1 from Texas Instruments, in a HTSSOP-14-EP. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 BOOT output Bootstrap capacitor node requiring 0.1 µF ceramic capacitor to SW pin; provides bias voltage for high-side MOSFET gate driver.
2 VIN power_in Input power supply for buck regulator internal biasing and high-side MOSFET, operating range 3.6 V to 36 V.
3 VIN_LDO power_in Input power supply for LDO regulator, operating range 3 V to 20 V when in regulation.
4 LDO_OUT power_out Linear regulator output voltage adjustable from 1.1 V to 5.5 V using external feedback resistor divider.
5 FB2 input LDO feedback input pin; connect external resistive divider from LDO_OUT to GND to set output voltage.
6 nRST output Active-low push-pull reset output asserted low when LDO_OUT is below 92% nominal and released high when LDO begins regulating.
7 EN2 input LDO enable input (high-voltage tolerant 40 V); internally pulled to ground; drive high to enable LDO regulator.
8 EN1 input Buck enable input (high-voltage tolerant 40 V); internally pulled to ground; drive high to enable buck regulator.
9 RT/CLK input Timing resistor to ground sets switching frequency (100 kHz to 2.5 MHz) or external clock input for PLL synchronization (300 kHz to 2200 kHz).
10 SS input Soft-start capacitor connection to ground charged by internal 2 µA current source; sets output voltage ramp time from 10% to 90% of final value.
11 FB1 input Buck feedback input pin; connect external resistive divider from buck output to GND to set output voltage range 1.1 V to 20 V.
12 COMP output Error amplifier output and peak-current comparator input; connect frequency compensation network (R and C) to GND.
13 GND power_in Ground reference.
14 SW output Switching node connected to external inductor and catch diode; source of internal high-side MOSFET during conduction.
15 PowerPAD passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package HTSSOP-14-EP
Category Power Management (PMIC)
Pins 15

CAD (KiCad official)

  • Symbol: TPS65320DQPWPRQ1
  • Footprint: Package_SO:TSSOP-14-1EP_4.4x5mm_P0.65mm
  • 3D model: HTSSOP-14-EP (KiCad packages3D, STEP)
  • 3D model files: tps65320dqpwprq1-etched.step / tps65320dqpwprq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps65320dqpwprq1.step / tps65320dqpwprq1.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (45 pp, sha256 44af3b9d372062ba, retrieved 2026-09-27, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF