component

SGM803-TXN3L

Public Made by Adom

by adom

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

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SGM803-TXN3L

SGMICRO · Supervisor And Reset ICs · SOT-23

SGM803-TXN3L from SGMICRO, in a SOT-23. 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 pin for the supervisor.
2 RESET output Active-low open-drain reset output on the SGM803: it goes low when VCC is below the reset threshold and stays low for a 240ms (TYP) timeout after VCC rises above the threshold, and it needs a pull-up resistor to VCC.
3 VCC power_in Supply voltage pin; the datasheet specifies an operating supply range of 1.2V to 5.5V over -40°C to +125°C and an absolute maximum of -0.3V to 6V.

Key specifications

Parameter Value
Manufacturer SGMICRO
Package SOT-23
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 (VCC), TA = 0℃ to +70℃ VCC 1 5.5 V TA = 0℃ to +70℃ 5
Supply voltage (VCC), TA = -40℃ to +125℃ VCC 1.2 5.5 V TA = -40℃ to +125℃ 5
Supply current, SGM8_R/S/T/Z/X 13 25 μA VCC < 3.6V, TA = +25℃ 5
Supply current, SGM8_R/S/T/Z/X 45 μA VCC < 3.6V, TA = -40℃ to +125℃ 5
RESET voltage threshold, SGM8_T VTH 3.003 3.08 3.157 V TA = +25℃ 5
RESET voltage threshold, SGM8_T VTH 2.92 3.23 V TA = -40℃ to +125℃ 5
Reset active timeout period 150 240 560 ms TA = -40℃ to +85℃ 5
Reset active timeout period 100 840 ms TA = -40℃ to +125℃ 5
RESET/RESET output low voltage (SGM803R/S/T/Z/X) 0.3 V VCC = VTH(MIN), ISINK = 1.2mA 5
RESET output low voltage (SGM803R/S/T/L/M/J/Z/X) 0.3 V VCC > 1.0V, ISINK = 50μA 5
RESET open-drain output leakage current (SGM803) 1 μA VCC > VTH, reset de-asserted 5
Absolute maximum VCC VCC -0.3 6 V 3
RESET, RESET output voltage (printed max is VCC + 0.3V) -0.3 V 3
Rate of rise, VCC 100 V/μs 3
Junction temperature TJ 150 ℃ 3
Storage temperature range TSTG -65 150 ℃ 3
Lead temperature (soldering) 260 ℃ 10s 3
Operating temperature range TA -40 125 ℃ 3
VCC to RESET/RESET delay 20 μs VCC = VTH to (VTH - 100mV) 5
Reset threshold temperature coefficient 30 ppm/℃ 5
Package thermal resistance, SOT-23-3 (θJA) θJA 250 ℃/W SOT-23-3 3

CAD (KiCad official)

  • Symbol: SGM803-TXN3L
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: sgm803-txn3l-etched.step / sgm803-txn3l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sgm803-txn3l.step / sgm803-txn3l.glb are the bare package body.

Provenance

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

  • Datasheet: SGMICRO datasheet (12 pp, sha256 f6c74dbfa382e235, retrieved 2026-10-18, 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