component
PJ54AM50SC
Public Made by Adomby adom
PJSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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PJ54AM50SC
PJSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3
PJ54AM50SC from PJSEMI, in a SOT-23-3. 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 | VOUT | output | Regulated output for the 5.0 V fixed-output variant (PJ54AM50SC), with output current up to 350 mA and a recommended minimum 10 μF ceramic output capacitor placed close to VOUT and GND. |
| 2 | VIN | power_in | Power input with an operating range of 3 V to 45 V per the electrical characteristics, and an absolute maximum VIN to GND voltage of -0.3 V to +55 V. |
| 3 | GND | power_in | Ground reference pin that must be connected with a wide copper trace to VIN and placed close to the 1 μF input capacitor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | PJSEMI |
| Package | SOT-23-3 |
| 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 |
|---|---|---|---|---|---|---|---|
| Input Voltage | VIN | 3 | 45 | V | 5 | ||
| Output Voltage Accuracy | ∆VOUT | -2 | 2 | % | VIN=12V, IOUT=10mA | 5 | |
| Maximum Output Current | IOUT_Max | 300 | 350 | mA | 5 | ||
| EN Input Threshold Logic Low | VIL | 0.4 | V | 5 | |||
| EN Input Threshold Logic High | VIH | 1 | V | 5 | |||
| Input Voltage to GND | -0.3 | 55 | V | VIN to GND | 4 | ||
| Output Voltage to GND | -0.3 | 6 | V | VOUT to GND | 4 | ||
| Output Voltage to Input Voltage | -55 | 0.3 | V | VOUT to VIN | 4 | ||
| EN Voltage to GND | -0.3 | 55 | V | EN to GND | 4 | ||
| Power Dissipation | 400 | mW | SOT-23-3 | 4 | |||
| Thermal Resistance, Junction-to-Ambient | 300 | °C/W | SOT-23-3 | 4 | |||
| Operating Ambient Temperature | -40 | 85 | °C | 4 | |||
| Junction Temperature | 150 | °C | 4 | ||||
| Storage Temperature Range | -40 | 150 | °C | 4 | |||
| ESD HBM | 4 | KV | HBM | 4 |
CAD (KiCad official)
- Symbol:
PJ54AM50SC - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
pj54am50sc-etched.step/pj54am50sc-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pj54am50sc.step/pj54am50sc.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: PJSEMI datasheet (11 pp, sha256
a1395667bea929bc, retrieved 2026-10-27, 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).
# PJ54AM50SC
**PJSEMI** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3
PJ54AM50SC from PJSEMI, in a SOT-23-3. 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 | VOUT | output | Regulated output for the 5.0 V fixed-output variant (PJ54AM50SC), with output current up to 350 mA and a recommended minimum 10 μF ceramic output capacitor placed close to VOUT and GND. |
| 2 | VIN | power_in | Power input with an operating range of 3 V to 45 V per the electrical characteristics, and an absolute maximum VIN to GND voltage of -0.3 V to +55 V. |
| 3 | GND | power_in | Ground reference pin that must be connected with a wide copper trace to VIN and placed close to the 1 μF input capacitor. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | PJSEMI |
| Package | SOT-23-3 |
| 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 |
|---|---|---|---|---|---|---|---|
| Input Voltage | VIN | 3 | | 45 | V | | 5 |
| Output Voltage Accuracy | ∆VOUT | -2 | | 2 | % | VIN=12V, IOUT=10mA | 5 |
| Maximum Output Current | IOUT_Max | 300 | 350 | | mA | | 5 |
| EN Input Threshold Logic Low | VIL | | | 0.4 | V | | 5 |
| EN Input Threshold Logic High | VIH | 1 | | | V | | 5 |
| Input Voltage to GND | | -0.3 | | 55 | V | VIN to GND | 4 |
| Output Voltage to GND | | -0.3 | | 6 | V | VOUT to GND | 4 |
| Output Voltage to Input Voltage | | -55 | | 0.3 | V | VOUT to VIN | 4 |
| EN Voltage to GND | | -0.3 | | 55 | V | EN to GND | 4 |
| Power Dissipation | | | | 400 | mW | SOT-23-3 | 4 |
| Thermal Resistance, Junction-to-Ambient | | | 300 | | °C/W | SOT-23-3 | 4 |
| Operating Ambient Temperature | | -40 | | 85 | °C | | 4 |
| Junction Temperature | | | | 150 | °C | | 4 |
| Storage Temperature Range | | -40 | | 150 | °C | | 4 |
| ESD HBM | | | | 4 | KV | HBM | 4 |
## CAD (KiCad official)
- Symbol: `PJ54AM50SC`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files: `pj54am50sc-etched.step` / `pj54am50sc-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pj54am50sc.step` / `pj54am50sc.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [PJSEMI datasheet](docs/pj54am50sc-datasheet.pdf) (11 pp, sha256 `a1395667bea929bc`, retrieved 2026-10-27, 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](docs/pj54am50sc-datasheet.pdf)