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CBM809SST3

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Corebai Microelectronics Supervisor And Reset ICs, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CBM809SST3

Corebai Microelectronics · Supervisor And Reset ICs · SOT-23-3

CBM809SST3 from Corebai Microelectronics, in a SOT-23-3. 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 GND power_in Ground reference; all signals are referenced to ground (0 V).
2 RESET output Active-low reset push-pull output that asserts while VCC is below the reset threshold and stays asserted for 240 ms typical after VCC rises above the threshold; it remains operable down to VCC of 1 V, with VOL of 0.3 V max at VCC > 1.0 V and ISINK = 50 µA.
3 VCC power_in Monitored supply voltage; the device operates from 1.0 V to 5.5 V.

Key specifications

Parameter Value
Manufacturer Corebai Microelectronics
Package SOT-23-3
Category Power Management (PMIC)
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage range 1 5.5 V 4
Supply current 17 30 μA VCC < 3.6 V, CBM8XXR/S/T/Z 4
Reset threshold voltage (VRST) VRST 2.89 2.93 2.96 V CBM803S/CBM809S/CBM810S 4
Reset pulse width 140 240 460 ms 4
RESET output low voltage (CBM809X) VOL 0.3 V VCC = VTH min, ISINK = 1.2 mA, CBM803R/S/T/Z, CBM809R/S/T/Z 4
RESET output high voltage (CBM809X), printed as 0.8 VCC VOH 0.8 V VCC > VTH max, ISOURCE = 500 μA, CBM809R/S/T/Z 4
Supply voltage VCC (absolute maximum) VCC -0.3 6 V 5
RESET voltage, push-pull (absolute maximum), printed as VCC+0.5 V RESET -0.3 V 5
Input current (VCC) 20 mA 5
Output current (RESET, RESET) 20 mA 5
Rate of rise, VCC 100 V/μs 5
Lead temperature (soldering, 10 s) 300 ℃ 10 s soldering 5
Vapor phase reflow 215 ℃ 60 s 5
Infrared reflow 220 ℃ 15 s 5
Storage temperature range -65 150 ℃ 5
Operating temperature range -40 85 ℃ Ordering table, CBM809SST3 12
Thermal resistance, junction to ambient (θJA) θJA 270 °C/W SOT-23 package 5

CAD (KiCad official)

  • Symbol: CBM809SST3
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: cbm809sst3-etched.step / cbm809sst3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cbm809sst3.step / cbm809sst3.glb are the bare package body.

Provenance

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

  • Datasheet: Corebai Microelectronics datasheet (13 pp, sha256 185a6d7df019adba, retrieved 2026-10-18, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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