component
LM3102MHX
Public Made by Adomby adom
Texas Instruments DC-DC Converters, HTSSOP-20-EP. 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
markdownLM3102MHX
Texas Instruments · DC-DC Converters · HTSSOP-20-EP
LM3102MHX from Texas Instruments, in a HTSSOP-20-EP. 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 | N/C | unconnected | No connection |
| 2 | SW | output | Power switching node output of the synchronous buck converter |
| 3 | SW | output | Power switching node output of the synchronous buck converter |
| 4 | VIN | power_in | Power input supply voltage, 4.5V to 42V operating range |
| 5 | VIN | power_in | Power input supply voltage, 4.5V to 42V operating range |
| 6 | BST | power_out | Bootstrap capacitor connection for high-side gate driver, rated -0.3V to +7V with respect to SW |
| 7 | AGND | power_in | Analog ground reference plane |
| 8 | SS | input | Soft-start input pin sources 6µA to 10µA at 0.5V for frequency-dependent soft-start control |
| 9 | N/C | unconnected | No connection |
| 10 | N/C | unconnected | No connection |
| 11 | GND | power_in | Ground connection for power circuit |
| 12 | N/C | unconnected | No connection |
| 13 | FB | input | Feedback input pin for output voltage regulation via external resistor divider |
| 14 | EN | input | Enable input pin, active high logic control |
| 15 | RON | input | On-time control input pin for frequency programming, rated -0.3V to 7V |
| 16 | VCC | power_out | Power regulator output voltage, typically 6V typical with UVLO threshold 3.6V to 3.9V |
| 17 | PGND | power_in | Power ground return for switching circuit |
| 18 | PGND | power_in | Power ground return for switching circuit |
| 19 | N/C | unconnected | No connection |
| 20 | N/C | unconnected | No connection |
| 21 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | HTSSOP-20-EP |
| Category | Power Management (PMIC) |
| Pins | 21 |
CAD (KiCad official)
- Symbol:
LM3102MHX - Footprint:
Package_SO:TSSOP-20-1EP_4.4x6.5mm_P0.65mm_EP2.15x3.35mm - 3D model: HTSSOP-20-EP, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.2 mm nominal TSSOP height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
lm3102mhx-etched.step/lm3102mhx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm3102mhx.step/lm3102mhx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (33 pp, sha256
c1579fd4c432e09c, retrieved 2026-10-01, 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, 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).