component
LM25010SDX
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
markdownLM25010SDX
Texas Instruments · DC-DC Converters · WSON-10-EP(4x4)
LM25010SDX 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; connect to inductor, free-wheeling diode, and bootstrap capacitor. |
| 2 | BST | input | Bootstrap pin; connect capacitor from SW to BST pin; capacitor is charged from VCC through internal diode during buck switch OFF-time. |
| 3 | ISEN | input | Current sense input; inductor current flows through internal sense resistor and out through ISEN pin to free-wheeling diode during buck switch OFF-time; current limit comparator keeps buck switch off if ISEN current exceeds 1.25 A typical. |
| 4 | SGND | power_in | Current sense ground; recirculating current flows into this pin through current sense resistor. |
| 5 | RTN | power_in | Ground return for all internal circuitry other than current sense resistor; input bypass capacitors should be located close to VIN and RTN pins. |
| 6 | FB | input | Voltage feedback input from regulated output to regulation and overvoltage comparators; FB pin regulation level is 2.5 V. |
| 7 | SS | input | Soft start pin; internal 11.5-µA current source charges SS pin capacitor to 2.5 V to softstart the reference input of regulation comparator. |
| 8 | RON/SD | input | ON-time control and shutdown pin; external resistor from VIN to RON/SD sets buck switch ON-time; grounding this pin shuts down the regulator. |
| 9 | VCC | power_in | Bias regulator output nominally equal to VIN for VIN < 8.9 V and regulated at 7 V for VIN > 8.9 V; connect 0.47-µF or larger capacitor from VCC to ground; external voltage can be applied to reduce dissipation if VIN > 8.9 V. |
| 10 | VIN | power_in | Input power supply with nominal range 6 V to 42 V; input bypass capacitors should be located close to VIN and RTN pins. |
| 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:
LM25010SDX - Footprint:
Package_SON:WSON-10-1EP_4x4mm_P0.8mm_EP2.6x3mm - 3D model: WSON-10-EP(4x4) (KiCad packages3D, STEP)
- 3D model files:
lm25010sdx-etched.step/lm25010sdx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm25010sdx.step/lm25010sdx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (35 pp, sha256
d5d36a8196d36262, retrieved 2026-10-06, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(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).