component
LM2621MM
Public Made by Adomby adom
Texas Instruments DC-DC Converters, VSSOP-8-0.65mm. Datasheet-verified pinout, 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
markdownLM2621MM
Texas Instruments · DC-DC Converters · VSSOP-8-0.65mm
LM2621MM from Texas Instruments, in a VSSOP-8-0.65mm. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | PGND | power_in | Power ground for the switching regulator power path. |
| 2 | EN | input | Active-low shutdown input; below 0.15 VDD shuts down, above 0.7 VDD enables normal operation. |
| 3 | FREQ | input | Frequency adjustment input; external resistor to VDD sets switching frequency from 300 kHz to 2 MHz. |
| 4 | FB | input | Output voltage feedback input; sets regulated output voltage from 1.24 V to 14 V via external resistor divider. |
| 5 | SGND | power_in | Signal ground for control circuitry. |
| 6 | VDD | power_in | Power supply for internal circuitry; 2.5 V to 5.0 V recommended operating range. |
| 7 | BOOT | power_in | Bootstrap supply for internal MOSFET gate drive; maximum voltage 10 V. |
| 8 | SW | output | Internal MOSFET switch drain output; connects to step-up inductor for switching regulation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8-0.65mm |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM2621MM - Footprint:
Package_SO:VSSOP-8_2.3x2mm_P0.5mm - 3D model: VSSOP-8-0.65mm (KiCad packages3D, STEP)
- 3D model files:
lm2621mm-etched.step/lm2621mm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2621mm.step/lm2621mm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (24 pp, sha256
4340cacd298ea402, retrieved 2026-09-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).