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XC6902N331PR-G

Torex Semicon · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3

XC6902N331PR-G from Torex Semicon, in a SOT-89-3. 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 pin; the datasheet's absolute maximum input voltage is specified relative to GND (GND-18 V to GND+0.3 V).
2 -VIN power_in Negative supply input with an input voltage range of -2.4 V to -16 V.
3 -VOUT power_out Negative regulated output; for the XC6902N331 variant the nominal output is -3.3 V (±1.5%) with a maximum output current of 200 mA.

Key specifications

Parameter Value
Manufacturer Torex Semicon
Package SOT-89-3
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
Output Voltage (effective, VOUT(T)=-3.3V, low-side multiplier, upper multiplier) VOUT(E) 0.985 1.015 x VOUT(T) IOUT=20mA; VOUT(T)<-2.0V; multipliers as printed (x0.985 / x1.015) 5
Maximum Output Current IOUTMAX 200 mA VIN=VOUT(T)-2.0V, VOUT(T)<=-2.4V 5
Load Regulation ΔVOUT 20 60 mV VIN=VOUT(T)-1.0V (VOUT(T)<=-3.0V), 1mA<=IOUT<=100mA 5
Dropout Voltage (from Dropout Voltage Chart, VOUT(T)=-3.30) Vdif 102 142 mV IOUT=20mA 6
Supply Current IBIAS 100 200 μA VIN=-16V, IOUT=0mA 5
Input Line Regulation (-9<=VOUT(T)<=-1.4V row) ΔVOUT/(ΔVIN·VOUT) 0.05 0.2 %/V VIN:-16V~VOUT(T)-1V, -9≦VOUT(T)≦-1.4V 5
Input Voltage VIN -16 -2.4 V 5
Output Voltage Temperature Characteristics ΔVOUT/(ΔTopr·VOUT) -50 50 ppm/℃ IOUT=20mA, -40℃≦Topr≦85℃ (printed TYP ±50) 5
Ripple Rejection Ratio PSRR 45 dB VIN={VOUT(T)-1.0}+0.5Vp-pAC, IOUT=20mA, f=1kHz 5
Limit Current ILIM 210 300 mA VIN=VOUT(T)-2.0V, VOUT(T)<=-2.4V 5
Short-Circuit Current ISHORT 80 mA VIN=VOUT(T)-2.0V, Short -VOUT to GND level 5
Detect Thermal Shutdown Temperature TTSD 150 ℃ IC Junction temperature 5
Release Thermal Shutdown Temperature TTSR 125 ℃ IC Junction temperature 5
Hysteresis Width THYS 25 ℃ TTSD-TTSR 5
Soft Start Time (VOUT(T)>-4.0V row) tSS 0.12 0.4 1.2 ms RL=3kΩ, VOUT(T)>-4.0V 5
Input Voltage (absolute maximum, relative to GND) VIN -18 0.3 V GND=0V, Ta=25℃; printed as GND-18 ~ GND+0.3 4
Output Current IOUT 500 mA Please use within IOUT≦Pd/(VOUT-VIN) 4
Output Voltage (absolute maximum, relative to VIN) VOUT -0.3 18 V printed as VIN-0.3 ~ VIN+18 4
Power Dissipation (SOT-89) Pd 500 mW SOT-89, GND=0V, Ta=25℃ 4
Power Dissipation (SOT-89, PCB mounted) Pd 1000 mW SOT-89, PCB mounted, GND=0V, Ta=25℃ 4
Operating Ambient Temperature Topr -40 85 ℃ 4
Storage Temperature Tstg -55 125 ℃ 4
Thermal Resistance (SOT-89, board mount) θJA 100 ℃/W Ta=25℃, mounted on board (Tjmax=125℃), Pd=1000mW 19

CAD (KiCad official)

  • Symbol: XC6902N331PR-G
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: xc6902n331pr-g-etched.step / xc6902n331pr-g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); xc6902n331pr-g.step / xc6902n331pr-g.glb are the bare package body.

Provenance

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

  • Datasheet: Torex Semicon datasheet (23 pp, sha256 d24e7c4e10955d71, retrieved 2026-10-19, 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