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AP431SBRTR-G1

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Diodes Incorporated Voltage Reference, SOT-89-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)ap431sbrtr-g1
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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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ap431sbrtr-g1-etched.fit.json ap431sbrtr-g1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
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AP431SBRTR-G1

Diodes Incorporated · Voltage Reference · SOT-89-3

AP431SBRTR-G1 from Diodes Incorporated, in a SOT-89-3. 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 REF input Reference / feedback input. The internal error amplifier compares this pin against the 2.5V internal reference and modulates cathode sink current to hold REF at VREF (2.500V typ.). Typically driven by a resistor divider from CATHODE to ANODE to set the regulated cathode voltage (VKA = VREF·(1 + R1/R2) + IREF·R1). IREF ≈ 0.2µA typ.
2 ANODE power_in Anode / ground return. The device sinks cathode current through this pin; usually tied to circuit ground in shunt-regulator use.
3 CATHODE power_in Cathode / regulated node. Sinks 0.1 to 100mA (recommended operating range; -100 to +150mA absolute max) when the regulation loop is active. Cathode voltage range VREF to 36V (recommended); 40V absolute max. Off-state cathode current 0.05µA typ. at VKA = 36V with VREF = 0.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-89-3
Category Power Management (PMIC)
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • AP431SBRTR-G1ARTR-G1
  • AP431SBRTR-G1HARTR-G1
  • AP431SBRTR-G1
  • AP431SBRTR-G1HBRTR-G1
  • AP431SBRTR-G1ANTR-G1
  • AP431SBRTR-G1AN1TR-G1
  • AP431SBRTR-G1HANTR-G1
  • AP431SBRTR-G1HAN1TR-G1
  • AP431SBRTR-G1BNTR-G1
  • AP431SBRTR-G1BN1TR-G1
  • AP431SBRTR-G1HBNTR-G1
  • AP431SBRTR-G1HBN1TR-G1
  • AP431SBRTR-G1AZTR-G1
  • AP431SBRTR-G1HAZTR-G1
  • AP431SBRTR-G1BZTR-G1
  • AP431SBRTR-G1HBZTR-G1

CAD (KiCad official)

  • Symbol: AP431SBRTR-G1
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: ap431sbrtr-g1-etched.step / ap431sbrtr-g1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ap431sbrtr-g1.step / ap431sbrtr-g1.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (None pp, sha256 770b9144c5e6fc10, 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