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CJ6211B12M
Public Made by Adomby adom
Changjing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5L. 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
markdownCJ6211B12M
Changjing · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5L
CJ6211B12M from Changjing, in a SOT-23-5L. 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 recommended supply voltage at VIN is 1.8 V to 6.0 V. |
| 2 | VSS | power_in | Ground pin. |
| 3 | CE | input | Chip enable pin with TTL-logic control: a level of at least 1.5 V up to VIN enables the regulator, and a level of 0.3 V or less shuts it down (standby current 1 µA max). |
| 4 | NC | unconnected | No connection. |
| 5 | VOUT | power_out | Regulated output pin; output current is rated at 500 mA min./700 mA max. for VOUT ≥ 1.8 V and 300 mA min./500 mA max. for VOUT ≥ 0.8 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-23-5L |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage at VIN (recommended) | VIN | 1.8 | 6 | V | 3 | ||
| Operating Junction Temperature Range (recommended) | Tj | 0 | 125 | °C | 3 | ||
| Operating Free Air Temperature Range (recommended) | TA | 0 | 85 | °C | 3 | ||
| Input Voltage (absolute maximum) | VIN | -0.3 | 7 | V | 3 | ||
| Output Voltage (absolute maximum, printed as VIN+0.3) | VOUT | -0.3 | V | Printed upper limit VIN+0.3 V | 3 | ||
| Output Current (absolute maximum) | IOUT | 700 | mA | 3 | |||
| Operating free air temperature range (absolute maximum) | TA | -40 | 85 | °C | 3 | ||
| Operating Junction Temperature Range (absolute maximum) | TJ | -40 | 125 | °C | 3 | ||
| Storage Temperature | Tstg | -40 | 125 | °C | 3 | ||
| Lead Temperature (Soldering) | Tsolder | 260 | °C | 10 sec soldering | 3 | ||
| ESD rating Human Body Model (HBM) | 2 | kV | Human body model, 100pF through 1.5kΩ | 3 | |||
| ESD rating Machine Model (MM) | 200 | V | Machine model, 200pF | 3 | |||
| Power Dissipation (SOT-23-3L/SOT-23-5L) | PD | 0.3 | W | SOT-23-3L/SOT-23-5L package | 3 | ||
| Supply Current | ISS | 50 | 90 | μA | IOUT=0 | 4 | |
| Standby Current | ISTBY | 0.1 | 1 | μA | CE = VSS | 4 | |
| Output Current (VOUT≥0.8V row, applies to 1.2V) | IOUT | 300 | 500 | mA | VOUT≥0.8V | 4 | |
| Dropout Voltage | VDO | 55 | mV | VOUT = 3.3V, IOUT = 100mA (as printed beside the table) | 4 | ||
| Load Regulation | ΔVOUT | 1 | mV | VIN = VOUT +1V | 4 | ||
| Line Regulation | ΔVOUT/(VOUT×ΔVIN) | 0.01 | 0.2 | %/V | IOUT = 10mA, VOUT +1V≤VIN≤6V | 4 | |
| Output Voltage Temperature Coefficient | ΔVOUT/(ΔT×VOUT) | 50 | ppm | IOUT = 10mA, -40≤T≤+85°C | 4 | ||
| Short Current | IShort | 100 | mA | VOUT = VSS | 4 | ||
| Input Voltage | VIN | 1.8 | 6 | V | 4 | ||
| Power Supply Rejection Rate 100Hz | PSRR | 75 | dB | IOUT = 50mA, 100Hz | 4 | ||
| Power Supply Rejection Rate 1kHz | PSRR | 80 | dB | IOUT = 50mA, 1kHz | 4 | ||
| Power Supply Rejection Rate 10kHz | PSRR | 70 | dB | IOUT = 50mA, 10kHz | 4 | ||
| CE High Voltage | VCE“H” | 1.5 | V | 4 | |||
| CE Low Voltage | VCE“L” | 0.3 | V | 4 | |||
| Thermal Shutdown | TSD | 160 | °C | 4 | |||
| Thermal Shutdown Hysteresis | ∆TSD | 20 | °C | 4 | |||
| COUT Auto-Discharge Resistance | RDISCHRG | 100 | Ω | VIN = 5V | 4 |
CAD (KiCad official)
- Symbol:
CJ6211B12M - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5L (KiCad packages3D, STEP)
- 3D model files:
cj6211b12m-etched.step/cj6211b12m-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cj6211b12m.step/cj6211b12m.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (11 pp, sha256
805289572b9842e1, 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).