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XC6221B332MR-G
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Torex Semicon Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-25-5. 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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Contents
README
markdownXC6221B332MR-G
Torex Semicon · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-25-5
XC6221B332MR-G from Torex Semicon, in a SOT-25-5. 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 input pin; the operating input voltage range is 1.6V to 6.0V, and the absolute maximum rating is VSS -0.3V to +6.5V. |
| 2 | VSS | power_in | Ground pin, the reference for VIN, VOUT and CE. |
| 3 | CE | input | ON/OFF control: a high level of 1.2V to 6.0V enables the IC and a low level of 0.3V or less puts it in standby, with an absolute maximum rating of VSS -0.3V to +6.5V; the XC6221B has no internal pull-down, so an open CE pin gives an undefined state. |
| 4 | NC | unconnected | No connection on the SOT-25 package. |
| 5 | VOUT | power_out | Regulated output that supplies up to 200mA (250mA typ.) and is limited to VSS -0.3V to VIN +0.3V in absolute maximum ratings. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Torex Semicon |
| Package | SOT-25-5 |
| 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 |
|---|---|---|---|---|---|---|---|
| Output Voltage (Standard), 3.30V nominal, ±2% grade | VOUT(E) | 3.234 | 3.366 | V | VCE=VIN, IOUT=10mA; values from output voltage chart, 3.30 row, standard accuracy | 6 | |
| Output Current | IOUTMAX | 200 | 250 | mA | VCE=VIN, VIN=VOUT(T)+1.0V, 0.80V<VOUT(T)<5.00V | 5 | |
| Limit Current | ILIM | 200 | 250 | mA | VCE=VIN | 5 | |
| Load Regulation | UVOUT | 10 | 40 | mV | VCE=VIN, 0.1mA<=IOUT<=100mA | 5 | |
| Dropout Voltage | Vdif | 80 | 140 | mV | VCE=VIN, IOUT=100mA | 6 | |
| Supply Current | IDD | 25 | 50 | μA | VCE=VIN, VIN=VOUT(T)+1.0V | 5 | |
| Standby Current | ISTB | 0.01 | 0.1 | μA | VIN=6.0V, VCE=VSS | 5 | |
| Line Regulation | UVOUT / (UVIN·VOUT) | 0.01 | 0.2 | %/V | VOUT(T)+0.5V<=VIN<=6.0V, VOUT(T)>=1.10V, VCE=VIN, IOUT=10mA | 5 | |
| Input Voltage | VIN | 1.6 | 6 | V | 5 | ||
| Output Voltage Temperature Characteristics | UVOUT / (UTopr·VOUT) | -100 | 100 | ppm/°C | VCE=VIN, IOUT=30mA, -40<Topr<85 | 5 | |
| Ripple Rejection Rate | PSRR | 60 | dB | VIN=VOUT(T)+1.0VDC+0.5Vp-pAC, VCE=VIN, IOUT=30mA, f=1kHz, 0.85V<=VOUT(T)<=4.00V | 5 | ||
| Short Current | ISHORT | 30 | mA | VCE=VIN, VOUT is short-circuited at the VSS level | 5 | ||
| CE High Level Voltage | VCEH | 1.2 | 6 | V | 5 | ||
| CE Low Level Voltage | VCEL | 0.3 | V | 5 | |||
| CE High Level Current | ICEH | -0.1 | 0.1 | μA | VCE=VIN (XC6221A/B) | 5 | |
| CE Low Level Current | ICEL | -0.1 | 0.1 | μA | VCE=VSS | 5 | |
| CL Auto-Discharge Resistance | RDCHG | 780 | Ω | VIN=6.0V, VOUT=4.0V, VCE=VSS | 5 | ||
| Input Voltage | VIN | -0.3 | 6.5 | V | Referenced to VSS | 4 | |
| Output Current | IOUT | 400 | mA | Footnote *1: IOUT<=Pd/(VIN-VOUT) | 4 | ||
| Output Voltage | VOUT | -0.3 | V | Referenced to VSS; upper limit printed as VIN+0.3 | 4 | ||
| CE Input Voltage | VCE | -0.3 | 6.5 | V | Referenced to VSS | 4 | |
| Power Dissipation, SOT-25 (unlabelled column) | Pd | 250 | mW | 4 | |||
| Power Dissipation, SOT-25 (PCB mounted) | Pd | 600 | mW | PCB mounted (footnote *2) | 4 | ||
| Operating Ambient Temperature | Topr | -40 | 85 | °C | 4 | ||
| Storage Temperature | Tstg | -55 | 125 | °C | 4 | ||
| Thermal Resistance, SOT-25 | θja | 166.67 | °C/W | Board mount (PCB, 40x40mm, 1.6mm FR-4), Tj max=125°C | 22 | ||
| Output Capacitor CL (recommended) | CL | 1 | μF | Ceramic; VOUT 1.40V to 4.00V (non-USPN-4 packages) | 8 | ||
| Input Capacitor CIN (recommended) | CIN | 1 | μF | Between VIN and VSS | 8 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | The USPN-4 package has for terminals. Each terminal connects one copper block in the front and | 24 |
CAD (KiCad official)
- Symbol:
XC6221B332MR-G - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-25-5 (KiCad packages3D, STEP)
- 3D model files:
xc6221b332mr-g-etched.step/xc6221b332mr-g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);xc6221b332mr-g.step/xc6221b332mr-g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Torex Semicon datasheet (28 pp, sha256
c5bad2e786b1d143, retrieved 2026-10-17, 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).