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LM5010SDX

Public Made by Adom

by adom

Texas Instruments DC-DC Converters, WSON-10-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LM5010SDX

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

LM5010SDX 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 SW output Switching node internally connected to buck switch source driving inductor, free-wheeling diode, and bootstrap capacitor.
2 BST input Bootstrap pin connected to 0.022-µF capacitor from SW, charged from VCC through internal diode during OFF-time.
3 ISEN input Current sense input where recirculating current flows through internal sense resistor to free-wheeling diode with 1.25-A nominal current limit.
4 SGND power_in Sense ground with recirculating current flowing into internal current sense resistor.
5 RTN power_in Circuit ground for all internal circuitry other than current limit detection.
6 FB input Feedback input from regulated output connected to regulation and overvoltage comparators with 2.5-V regulation level.
7 SS input Soft start pin charged by 11.5-µA internal current source to 2.5 V providing soft start function.
8 RON/SD input ON-time control and shutdown where external resistor from VIN sets buck switch ON-time and grounding shuts down regulator.
9 VCC power_in Regulated output from internal startup regulator at 7 V nominal with external 7.5-V to 14-V supply capable of reducing dissipation via internal diode connection to VIN.
10 VIN power_in Input supply with 8-V to 75-V nominal input range.
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: LM5010SDX
  • Footprint: Package_SON:WSON-10-1EP_4x4mm_P0.8mm_EP2.6x3mm
  • 3D model: WSON-10-EP(4x4) (KiCad packages3D, STEP)
  • 3D model files: lm5010sdx-etched.step / lm5010sdx-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm5010sdx.step / lm5010sdx.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (35 pp, sha256 10e2ba679717d7bd, retrieved 2026-10-03, tier: lcsc)
  • 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