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Contents

README

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TPS54561QDPRTQ1

Texas Instruments · DC-DC Converters · WSON-10-EP(4x4)

TPS54561QDPRTQ1 from Texas Instruments, in a WSON-10-EP(4x4). 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 The device requires a bootstrap capacitor between BOOT and SW; if the voltage on this capacitor falls below the minimum required to operate the high-side MOSFET, the gate driver switches off until the capacitor recharges.
2 VDD power_in Input supply pin with a 4.5-V to 60-V operating range.
3 EN input Enable pin with an internal pullup current source; pull below 1.2 V to disable and float to enable, and the input undervoltage lockout can be adjusted with two resistors.
4 SS/TR input Soft-start and tracking input; an external capacitor sets the output rise time, and a voltage applied to this pin overrides the internal reference to allow tracking and sequencing.
5 RT/CLK input Resistor timing and external clock input; an external resistor to ground sets the switching frequency, and when pulled above the PLL upper threshold the pin becomes a high-impedance synchronization clock input.
6 FB input Inverting input of the transconductance (gm) error amplifier.
7 COMP output Error amplifier output and input to the output switch-current comparator (PWM comparator); frequency compensation components connect to this pin.
8 GND power_in Ground pin; to ensure proper operation, it must be electrically connected to the copper pad under the IC on the printed circuit board.
9 SW input Source of the internal high-side power MOSFET and the switching node of the converter (datasheet I/O column lists this pin as I).
10 PWRGD output Open-drain power-good output that asserts when the output voltage is low because of thermal shutdown, dropout, overvoltage, or EN shutdown.
11 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package WSON-10-EP(4x4)
Category Power Supply Chip
Pins 11

CAD (KiCad official)

  • Symbol: TPS54561QDPRTQ1
  • Footprint: Package_SON:WSON-10-1EP_4x4mm_P0.8mm_EP2.6x3mm
  • 3D model: WSON-10-EP(4x4) (KiCad packages3D, STEP)
  • 3D model files: tps54561qdprtq1-etched.step / tps54561qdprtq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps54561qdprtq1.step / tps54561qdprtq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (54 pp, sha256 6999bc04acb346ca, retrieved 2026-10-08, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (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