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XC6902N331PR-G
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Torex Semicon Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
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PCB Footprint
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Datasheet
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README
markdownXC6902N331PR-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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);xc6902n331pr-g.step/xc6902n331pr-g.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).