component
BL8503-12PRM
Public Made by Adomby adom
BL(Shanghai Belling) Linear Voltage Regulators (LDO), SOT-23. 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
markdownBL8503-12PRM
BL(Shanghai Belling) · Linear Voltage Regulators (LDO) · SOT-23
BL8503-12PRM from BL(Shanghai Belling), in a SOT-23. 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 | Vss | power_in | Ground pin of the regulator. |
| 2 | Vout | power_out | Regulated output voltage (1.2V for the BL8503-12PRM, ±2% accuracy), up to 250mA with a recommended 1uF output capacitor. |
| 3 | Vin | power_in | Supply voltage input, absolute maximum 10V, with a recommended 1uF input capacitor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BL(Shanghai Belling) |
| Package | SOT-23 |
| Category | Power Management ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum input voltage | Vin | 10 | V | 4 | |||
| Junction temperature | TJ | 125 | C | 4 | |||
| Ambient temperature | TA | -40 | 85 | C | 4 | ||
| Power dissipation SOT-23-3 | PD | 0.15 | W | SOT-23-3 | 4 | ||
| Storage temperature | Ts | -45 | 150 | C | 4 | ||
| Lead temperature and time | 260 | C | 10 s | 4 | |||
| Input voltage range | Vin | 8 | V | 4 | |||
| Ambient temperature | TA | -40 | 125 | C | 4 | ||
| Output voltage accuracy | -2 | 2 | % | default accuracy (series) | 2 | ||
| Output voltage temperature coefficient | ΔVout/(ΔT·Vout) | 50 | ppm/C | Iout=10mA (series tables) | 5 | ||
| Quiescent current | Iq | 3 | uA | Low power consumption (Typ.), series feature | 1 |
CAD (KiCad official)
- Symbol:
BL8503-12PRM - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
bl8503-12prm-etched.step/bl8503-12prm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bl8503-12prm.step/bl8503-12prm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BL(Shanghai Belling) datasheet (13 pp, sha256
8f6684221c2cf4c4, retrieved 2026-10-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).