component
BL8552CB3TR30
Public Made by Adomby adom
BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3. 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
markdownBL8552CB3TR30
BL Shanghai Belling · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3
BL8552CB3TR30 from BL Shanghai Belling, 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 for the regulator, connected to the input and output capacitor returns. |
| 2 | VOUT | power_out | Regulated output voltage (1.2V to 3.6V in 100mV steps, ±2% accuracy), up to 300mA output current, with a 1uF output capacitor. |
| 3 | VDD | power_in | Supply voltage input, 8V maximum recommended (10V absolute maximum), with a 1uF input capacitor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BL Shanghai Belling |
| 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 | VDD | 8 | V | 3 | |||
| Output voltage (VOUT>1.5V, accuracy factor, printed as VOUT x0.98 / x1.02) | VOUT | 0.98 | 1.02 | x VOUT | VOUT>1.5V; VDD=Set VOUT+1V; 1mA≤IOUT≤10mA | 3 | |
| Maximum output current | IOUT (Max.) | 300 | mA | VDD-VOUT=1V | 3 | ||
| Dropout voltage | VDROP | 280 | mV | IOUT=150mA, VOUT=3.0V | 3 | ||
| Line regulation | 0.05 | 0.2 | %/V | IOUT=10mA, 4V≤VDD≤6V | 3 | ||
| Load regulation | 150 | mV | VDD=Set VOUT+1V, 1mA≤IOUT≤300mA | 3 | |||
| Supply current | Is | 2 | 3 | uA | VDD=Set VOUT+1V, VOUT floating | 3 | |
| Output voltage temperature coefficient | T | -100 | 100 | ppm/C | IOUT=10mA | 3 | |
| Ripple rejection | PSRR | 60 | dB | f=100Hz, Ripple=0.5Vp-p, VDD=Set VOUT+1V | 3 | ||
| Max input voltage | 10 | V | 3 | ||||
| Operating junction temperature | TJ | 125 | C | 3 | |||
| Ambient temperature | TA | -40 | 85 | C | 3 | ||
| Power dissipation | 250 | mW | SOT-23-3, SOT-23-5 package | 3 | |||
| Storage temperature | TS | -40 | 150 | C | 3 | ||
| Lead temperature | 260 | C | 10 Sec | 3 | |||
| Input voltage range | 8 | V | 3 | ||||
| Ambient temperature | -40 | 85 | C | 3 | |||
| Output noise | en | 44 | uVrms | BW=10Hz~100KHz | 3 |
CAD (KiCad official)
- Symbol:
BL8552CB3TR30 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
bl8552cb3tr30-etched.step/bl8552cb3tr30-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bl8552cb3tr30.step/bl8552cb3tr30.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BL Shanghai Belling datasheet (7 pp, sha256
75dd5d6ff26f56fd, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).