component
PJ54M33SC
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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PJ54M33SC
PJSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3
PJ54M33SC 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 | GND | power_in | Ground reference pin; the datasheet requires a wide copper trace for both VIN and GND and places the output capacitor as close as possible to VOUT and GND. |
| 2 | VOUT | power_out | Regulated output voltage pin; the datasheet recommends a minimum 10µF ceramic output capacitor (X7R or X5R), and the VOUT to GND absolute maximum is -0.3 to +6 V. |
| 3 | VIN | power_in | Power input pin with a recommended supply range of 3 to 45 V; the VIN to GND absolute maximum is -0.3 to +55 V. |
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 | 8 | ||
| Output Voltage Accuracy | ∆VOUT | -2 | 2 | % | VIN=12V, IOUT=10mA | 8 | |
| Maximum Output Current | IOUT_Max | 300 | 350 | mA | 8 | ||
| EN Input Threshold Logic Low | VIL | 0.4 | V | 8 | |||
| EN Input Threshold Logic High | VIH | 1 | V | 8 | |||
| Supply Voltage | 3 | 45 | V | 7 | |||
| Maximum Output Current | 350 | mA | 7 | ||||
| Operating Ambient Temperature | -40 | 85 | °C | 7 | |||
| VIN to GND Voltage | -0.3 | 55 | V | 7 | |||
| VOUT to GND Voltage | -0.3 | 6 | V | 7 | |||
| VOUT to VIN Voltage | -55 | 0.3 | V | 7 | |||
| EN to GND Voltage | -0.3 | 55 | V | 7 | |||
| Power Dissipation | 500 | mW | SOT-23-3 package | 7 | |||
| Junction Temperature | 150 | °C | 7 | ||||
| Storage Temperature Range | -40 | 150 | °C | 7 | |||
| Thermal Resistance, Junction-to-Ambient | 250 | °C/W | SOT-23-3 package | 7 |
CAD (KiCad official)
- Symbol:
PJ54M33SC - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
pj54m33sc-etched.step/pj54m33sc-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pj54m33sc.step/pj54m33sc.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: PJSEMI datasheet (25 pp, sha256
494f5a1224bd9a3b, 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).
# PJ54M33SC
**PJSEMI** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3
PJ54M33SC 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 | GND | power_in | Ground reference pin; the datasheet requires a wide copper trace for both VIN and GND and places the output capacitor as close as possible to VOUT and GND. |
| 2 | VOUT | power_out | Regulated output voltage pin; the datasheet recommends a minimum 10µF ceramic output capacitor (X7R or X5R), and the VOUT to GND absolute maximum is -0.3 to +6 V. |
| 3 | VIN | power_in | Power input pin with a recommended supply range of 3 to 45 V; the VIN to GND absolute maximum is -0.3 to +55 V. |
## 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 | | 8 |
| Output Voltage Accuracy | ∆VOUT | -2 | | 2 | % | VIN=12V, IOUT=10mA | 8 |
| Maximum Output Current | IOUT_Max | 300 | 350 | | mA | | 8 |
| EN Input Threshold Logic Low | VIL | | | 0.4 | V | | 8 |
| EN Input Threshold Logic High | VIH | 1 | | | V | | 8 |
| Supply Voltage | | 3 | | 45 | V | | 7 |
| Maximum Output Current | | | | 350 | mA | | 7 |
| Operating Ambient Temperature | | -40 | | 85 | °C | | 7 |
| VIN to GND Voltage | | -0.3 | | 55 | V | | 7 |
| VOUT to GND Voltage | | -0.3 | | 6 | V | | 7 |
| VOUT to VIN Voltage | | -55 | | 0.3 | V | | 7 |
| EN to GND Voltage | | -0.3 | | 55 | V | | 7 |
| Power Dissipation | | | | 500 | mW | SOT-23-3 package | 7 |
| Junction Temperature | | | | 150 | °C | | 7 |
| Storage Temperature Range | | -40 | | 150 | °C | | 7 |
| Thermal Resistance, Junction-to-Ambient | | | 250 | | °C/W | SOT-23-3 package | 7 |
## CAD (KiCad official)
- Symbol: `PJ54M33SC`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files: `pj54m33sc-etched.step` / `pj54m33sc-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pj54m33sc.step` / `pj54m33sc.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [PJSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603387375972741120) (25 pp, sha256 `494f5a1224bd9a3b`, retrieved 2026-10-17, 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/pj54m33sc-datasheet.pdf)