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Contents

README

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TPS37043BJOFDDFRQ1

Texas Instruments · Supervisor And Reset ICs · TSOT-23-8

TPS37043BJOFDDFRQ1 from Texas Instruments, in a TSOT-23-8. 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 VDD power_in Supply input; bypass with a 0.1-µF capacitor to GND, with the supply pin voltage specified at 1.7 V to 6.0 V (6.5 V absolute maximum).
2 SENSE1 input Connect directly to the monitored voltage; RESET1 asserts when SENSE1 falls outside the window threshold, and the input may range from 0 V to 6.0 V, leaving the pin floating if unused.
3 SENSE2 input Connect directly to the monitored voltage; RESET2 asserts when SENSE2 falls outside the window threshold, and the input may range from 0 V to 6.0 V, leaving the pin floating if unused.
4 GND power_in Ground reference for the device; the VDD supply bypass capacitor returns to this pin.
5 SENSE3 input Connect directly to the monitored voltage; RESET3 asserts when SENSE3 falls outside the window threshold, and the input may range from 0 V to 6.0 V, leaving the pin floating if not used.
6 RESET3 output Active-low, open-drain reset output that requires an external pullup resistor and asserts on an overvoltage or undervoltage fault on SENSE3; recommended sink current is 0.3 mA to 5 mA, and the output voltage is 0 V to 6.0 V.
7 RESET2 output Active-low, open-drain reset output that requires an external pullup resistor and asserts on an overvoltage or undervoltage fault on SENSE2; recommended sink current is 0.3 mA to 5 mA, and the output voltage is 0 V to 6.0 V.
8 RESET1 output Active-low, open-drain reset output that requires an external pullup resistor and asserts on an overvoltage or undervoltage fault on SENSE1; recommended sink current is 0.3 mA to 5 mA, and the output voltage is 0 V to 6.0 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSOT-23-8
Category Power Management (PMIC)
Pins 8

CAD (KiCad official)

  • Symbol: TPS37043BJOFDDFRQ1
  • Footprint: Package_TO_SOT_SMD:TSOT-23-8
  • 3D model: TSOT-23-8 (KiCad packages3D, STEP)
  • 3D model files: tps37043bjofddfrq1-etched.step / tps37043bjofddfrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps37043bjofddfrq1.step / tps37043bjofddfrq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (37 pp, sha256 c212859793c929e0, retrieved 2026-10-10, 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