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LP6451AB6F

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by Ray

LOWPOWER DC-DC Converters, SOT-23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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LP6451AB6F

LOWPOWER · DC-DC Converters · SOT-23-6

LP6451AB6F from LOWPOWER, in a SOT-23-6. 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 BST passive Bootstrap pin. Power supply for the high-side MOSFET gate driver. A 0.1 µF ceramic capacitor must be connected between BST and SW.
2 GND power_in Power ground of the IC. Return path for input, output, and internal driver currents; connect to the ground plane with low impedance.
3 FB input Feedback pin. Use a resistor divider from VOUT to set the desired output voltage; regulated to Vref = 0.592 V (LP6451A). FB leakage typically 0.01 µA.
4 EN input Enable input. Logic-high rising threshold 1.2 V (typ) with 0.2 V hysteresis; controls the system power sequence. Has an internal 1 MΩ pull-down resistor.
5 VIN power_in IC power supply input, 4.2 V to 18 V. Decouple to GND with 4.7-100 µF; also supplies the high-side MOSFET drain.
6 SW output Switching node of the converter. Connect the external inductor between SW and VOUT; also the low end of the BST bootstrap capacitor.

Key specifications

Parameter Value
Manufacturer LOWPOWER
Package SOT-23-6
Category PMIC
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • LP6451AB6F
  • LP6451AB6FTB6F
  • LP6451AB6FFB6F
  • LP6451AB6FMB6F
  • LP6451AB6FAFB6F

CAD (KiCad official)

  • Symbol: LP6451AB6F
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: LOWPOWER datasheet (17 pp, sha256 237b5e7995abac1e, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF