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Contents

README

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TPS54326PWPR

Texas Instruments · DC-DC Converters · HTSSOP-14-EP

TPS54326PWPR 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 VO output Converter output voltage pin; used for on-time adjustment through external feedback network.
2 VFB input Feedback input pin; connect external resistor divider network from VO to this pin for voltage regulation.
3 VREG5 power_out 5.5V regulated power supply output for control circuitry; 1μF ceramic capacitor to GND required.
4 SS input Soft-start control pin; external capacitor to GND sets adjustable start-up time.
5 GND power_in Signal ground reference pin.
6 PG output Open-drain power good output; pulls high when output voltage within ±10% of target.
7 EN input Enable control input; logic high (≥1.5V) enables converter, logic low (<0.4V) disables and discharges output.
8 PGND1 power_in Ground return for low-side MOSFET and current comparator input; connect to power ground plane.
9 PGND2 power_in Ground return for low-side MOSFET and current comparator input; connect to power ground plane.
10 SW1 output Switch node between high-side and low-side MOSFETs; also serves as current comparator input.
11 SW2 output Switch node between high-side and low-side MOSFETs; also serves as current comparator input.
12 VBST power_in Bootstrap supply input for high-side MOSFET gate driver; 0.1μF ceramic capacitor to SW terminals required.
13 VIN power_in Power input connected to high-side MOSFET drain; operating range 2V to 18V.
14 VCC power_in Supply input for 5V internal linear regulator and control circuitry; recommended operating range 4.5V to 18V.
15 EP 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: TPS54326PWPR
  • Footprint: Package_SO:TSSOP-14-1EP_4.4x5mm_P0.65mm
  • 3D model: HTSSOP-14-EP (KiCad packages3D, STEP)
  • 3D model files: tps54326pwpr-etched.step / tps54326pwpr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps54326pwpr.step / tps54326pwpr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (37 pp, sha256 aaf09f8fad2f58fb, 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