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Contents

README

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LM53601LQDSXRQ1

Texas Instruments · DC-DC Converters · WSON-10-EP(3x3)

LM53601LQDSXRQ1 from Texas Instruments, in a WSON-10-EP(3x3). 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 SW output Switch node connected to output inductor; oscillates between ground and VIN during switching operation.
2 BOOT input Bootstrap capacitor connection for high-side gate driver; charged by internal diode when SW is low.
3 VCC power_out Internal 3.0V regulated supply for control circuits; bypass with 1.0-μF capacitor to AGND.
4 FB input Feedback input for output voltage regulation and VCC regulator power source; connect to output node with 10-nF bypass capacitor.
5 AGND power_in Analog ground reference for input signal and feedback voltage comparison.
6 RESET output Open-drain reset output indicating regulator status; high when regulator OK, low on fault or when EN is low.
7 EN input Regulator enable input; logic high enables operation, logic low disables; do not leave floating.
8 VIN power_in Input power supply; operates from 3.55V to 36V with transient capability up to 42V; connect bypass capacitors directly to GND.
9 SYNC/MODE input Mode control and synchronization input tolerant of voltages up to VIN; accepts external clock for PWM synchronization or ties high/low for PWM/AUTO mode selection.
10 GND power_in Ground return; bypass to VIN immediately adjacent to this pin.
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(3x3)
Category Power Management (PMIC)
Pins 11

CAD (KiCad official)

  • Symbol: LM53601LQDSXRQ1
  • Footprint: Package_SON:VSON-10-1EP_3x3mm_P0.5mm_EP1.2x2mm
  • 3D model: WSON-10-EP(3x3) (KiCad packages3D, STEP)
  • 3D model files: lm53601lqdsxrq1-etched.step / lm53601lqdsxrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm53601lqdsxrq1.step / lm53601lqdsxrq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (51 pp, sha256 d174c97c59a34282, retrieved 2026-10-03, 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-4-5-20251001 (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