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XC6504A281MR-G
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Torex Semicon Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-25. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownXC6504A281MR-G
Torex Semicon · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-25
XC6504A281MR-G from Torex Semicon, in a SOT-25. 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 | VIN | power_in | Power supply input with an operating input voltage range of 1.4V to 6.0V (absolute maximum -0.3V to 6.5V). |
| 2 | VSS | power_in | Ground pin; all voltages in the datasheet are referenced to VSS. |
| 3 | CE | input | ON/OFF control: CE high (minimum 0.91V) enables the output, CE low (maximum 0.38V) puts the IC in stand-by, and the pin must not be left open because the output becomes unstable. |
| 4 | NC | unconnected | No connection; this pin is not used in the SOT-25 package. |
| 5 | VOUT | power_out | Regulated voltage output with a maximum output current of 150mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Torex Semicon |
| Package | SOT-25 |
| Category | Power Management (PMIC) |
| Pins | 5 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input Voltage | VIN | 1.4 | 6 | V | IOUT=1μA | 5 | |
| Output Voltage (effective, 2.8V variant) | VOUT(E) | 2.772 | 2.8 | 2.828 | V | VOUT(T)≥2.0V; min/max from Voltage Chart for 2.8V | 5 |
| Maximum Output Current | IOUTMAX | 150 | mA | 5 | |||
| Load Regulation | ΔVOUT | 3 | 16 | mV | 1μA≤IOUT≤1mA | 5 | |
| Load Regulation | ΔVOUT | 17 | 50 | mV | 1mA≤IOUT≤150mA | 5 | |
| Dropout Voltage (Vdif1) | Vdif1 | 0.2 | 0.3 | V | IOUT=50mA; values from Voltage Chart (E-1) for 2.8V | 6 | |
| Dropout Voltage (Vdif2) | Vdif2 | 0.54 | 0.74 | V | IOUT=150mA; values from Voltage Chart (E-2) for 2.8V | 6 | |
| Supply Current | ISS | 0.65 | 1.5 | μA | IOUT=0mA, 1.9V≤VOUT(T)<4.0V | 5 | |
| Stand-by Current | ISTB | 0.01 | 0.1 | μA | VIN=6.0V, VCE=VSS | 5 | |
| Line Regulation | ΔVOUT/(ΔVIN・VOUT) | 0.01 | 0.13 | %/V | IOUT=1μA, VOUT(T)+0.5V≤VIN≤6.0V | 5 | |
| Line Regulation | ΔVOUT/(ΔVIN・VOUT) | 0.01 | 0.19 | %/V | IOUT=1mA, VOUT(T)≥1.2V, VOUT(T)+0.5V≤VIN≤6.0V | 5 | |
| Output Voltage Temperature Characteristics | ΔVOUT/(ΔTopr・VOUT) | -50 | 50 | ppm/℃ | IOUT=10mA, -40℃≤Topr≤85℃ | 5 | |
| Current Limit | ILIM | 150 | 270 | mA | VOUT=VOUT(E)×0.95 | 5 | |
| Short-Circuit Current | ISHORT | 80 | mA | VOUT=VSS | 5 | ||
| CL Auto-Discharge Resistance | RDCHG | 280 | 450 | 640 | Ω | VCE=VSS, VOUT=VOUT(T) | 5 |
| CE "H" Level Voltage | VCEH | 0.91 | 6 | V | 5 | ||
| CE "L" Level Voltage | VCEL | 0.38 | V | 5 | |||
| CE "H" Level Current | ICEH | -0.1 | 0.1 | μA | VIN=6.0V | 5 | |
| CE "L" Level Current | ICEL | -0.1 | 0.1 | μA | VIN=6.0V, VCE=VSS | 5 | |
| Input Voltage | VIN | -0.3 | 6.5 | V | 4 | ||
| Output Current | IOUT | 470 | mA | Use within IOUT≤Pd/(VIN-VOUT) | 4 | ||
| Output Voltage | VOUT | -0.3 | 6.5 | V | Lowest of VIN+0.3V or 6.5V | 4 | |
| CE Input Voltage | VCE | -0.3 | 6.5 | V | 4 | ||
| Power Dissipation (SOT-25) | Pd | 250 | mW | IC only, Ta=25℃ | 4 | ||
| Power Dissipation (SOT-25, board) | Pd | 600 | mW | 40mm x 40mm standard board, PCB mounted, reference only; Ta=25℃ | 4 | ||
| Operating Ambient Temperature | Topr | -40 | 85 | ℃ | 4 | ||
| Storage Temperature | Tstg | -55 | 125 | ℃ | 4 |
CAD (KiCad official)
- Symbol:
XC6504A281MR-G - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-25 (KiCad packages3D, STEP)
- 3D model files:
xc6504a281mr-g-etched.step/xc6504a281mr-g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);xc6504a281mr-g.step/xc6504a281mr-g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Torex Semicon datasheet (27 pp, sha256
ce98064ab5b3428e, retrieved 2026-10-29, 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).