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Contents

README

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LM2651MTCX-ADJ

Texas Instruments · DC-DC Converters · TSSOP-16

LM2651MTCX-ADJ from Texas Instruments, in a TSSOP-16. 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 Switched-node connection, connected to the source of the internal high-side MOSFET.
2 SW output Switched-node connection, connected to the source of the internal high-side MOSFET.
3 VIN power_in Main power supply pin; the recommended supply voltage range is 4 V to 14 V, with an absolute maximum of 15 V.
4 VIN power_in Main power supply pin; the recommended supply voltage range is 4 V to 14 V, with an absolute maximum of 15 V.
5 VIN power_in Main power supply pin; the recommended supply voltage range is 4 V to 14 V, with an absolute maximum of 15 V.
6 VCB input Bootstrap capacitor connection for high-side gate drive.
7 AVIN power_in Input supply voltage for control and driver circuits.
8 SD(SS) input Shutdown and soft-start control pin; pulling it below 0.3 V shuts off the regulator, a capacitor to ground sets the input-current control ramp, and it must not be driven by an external source.
9 FB input Output voltage feedback input, connected to the output voltage; absolute maximum feedback pin voltage is −0.4 V to 5 V.
10 COMP input Compensation network connection, connected to the output of the voltage error amplifier.
11 NC unconnected No internal connection.
12 AGND power_in Low-noise analog ground.
13 AGND power_in Low-noise analog ground.
14 PGND power_in Power ground.
15 PGND power_in Power ground.
16 PGND power_in Power ground.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-16
Category Power Management (PMIC)
Pins 16

CAD (KiCad official)

  • Symbol: LM2651MTCX-ADJ
  • Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16 (KiCad packages3D, STEP)
  • 3D model files: lm2651mtcx-adj-etched.step / lm2651mtcx-adj-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2651mtcx-adj.step / lm2651mtcx-adj.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (26 pp, sha256 a40ea9383fcae0d4, retrieved 2026-10-08, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (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