component
LM5010SD
Public Made by Adomby adom
Texas Instruments DC-DC Converters, WSON-10-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM5010SD
Texas Instruments · DC-DC Converters · WSON-10-EP(4x4)
LM5010SD 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 the buck switch source; connect to the inductor, free-wheeling diode, and bootstrap capacitor. |
| 2 | BST | input | Boost pin for the bootstrap capacitor; connect a 0.022-µF capacitor from SW to this pin, charged from VCC through an internal diode during each OFF-time. |
| 3 | ISEN | input | Current sense input; recirculating current flows through the internal sense resistor and out of this pin to the free-wheeling diode, with current limit nominally set at 1.25 A. |
| 4 | SGND | power_in | Sense ground; recirculating current flows into this pin to the current sense resistor. |
| 5 | RTN | power_in | Circuit ground for all internal circuitry other than the current limit detection. |
| 6 | FB | input | Feedback input from the regulated output, connected internally to the regulation and overvoltage comparators; the regulation level is 2.5 V. |
| 7 | SS | input | Soft start: an internal 11.5-µA current source charges an external capacitor to 2.5 V to provide the soft-start function. |
| 8 | RON/SD | input | ON-time control and shutdown: an external resistor from VIN to this pin sets the buck switch ON-time, and grounding this pin shuts down the regulator. |
| 9 | VCC | power_out | Output of the startup regulator, nominally regulated at 7 V; an external 7.5 V to 14 V may be applied to reduce internal dissipation, and an internal diode connects VCC to VIN. |
| 10 | VIN | power_in | Input supply with a nominal input range of 8 V to 75 V. |
| 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 Management (PMIC) |
| Pins | 11 |
CAD (KiCad official)
- Symbol:
LM5010SD - Footprint:
Package_SON:WSON-10-1EP_4x4mm_P0.8mm_EP2.6x3mm - 3D model: WSON-10-EP(4x4) (KiCad packages3D, STEP)
- 3D model files:
lm5010sd-etched.step/lm5010sd-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm5010sd.step/lm5010sd.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (35 pp, sha256
10e2ba679717d7bd, retrieved 2026-10-08, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).