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Contents

README

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GBI1400TKBR

GOSEMICON · DC-DC Converters · TSOT-23-6L

GBI1400TKBR from GOSEMICON, in a TSOT-23-6L. 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 BOOT input Power supply for the high-side power MOSFET gate driver; a 0.1uF or greater ceramic capacitor must be connected between the BOOT pin and the SW node.
2 GND power_in Power ground; the GND pin should be connected directly to the thermal pad beside the IC with an 8mil max thermal via recommended.
3 FB input Buck converter output feedback sensing input; a resistor divider from VOUT to FB sets the output, and the device regulates FB to the internal 0.8V reference typically (FB absolute maximum is 6V).
4 EN input Enable logic input that supports high voltage up to VIN, with precision thresholds of 1.25V rising and 1.1V falling for programmable UVLO; this pin cannot be floating.
5 VIN power_in Power supply input with an operating range of 4.6V to 40V that must be locally bypassed.
6 SW output Switching node of the buck converter; SW to GND is rated -1V to 45V absolute maximum (SW to GND, less than 30ns transients: -2V to 45V).

Key specifications

Parameter Value
Manufacturer GOSEMICON
Package TSOT-23-6L
Category Power Management (PMIC)
Pins 6

CAD (KiCad official)

  • Symbol: GBI1400TKBR
  • Footprint: Package_TO_SOT_SMD:TSOT-23-6
  • 3D model: TSOT-23-6L (KiCad packages3D, STEP)
  • 3D model files: gbi1400tkbr-etched.step / gbi1400tkbr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); gbi1400tkbr.step / gbi1400tkbr.glb are the bare package body.

Provenance

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

  • Datasheet: GOSEMICON datasheet (17 pp, sha256 5c7ff60e03ef91a3, retrieved 2026-10-09, 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