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BL8536CB3TR33

Public Made by Adom

by adom

BL Shanghai Belling DC-DC Converters, SOT-23-3L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

markdown

BL8536CB3TR33

BL Shanghai Belling · DC-DC Converters · SOT-23-3L

BL8536CB3TR33 from BL Shanghai Belling, in a SOT-23-3L. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground reference for the device. Return path for input, output, and switching currents.
2 SW power_out Switching node. Connect the boost inductor between VIN and this pin. Internal synchronous PMOS/NMOS drives this node at ~1MHz; absolute max -0.3V to 6V.
3 OUT power_out Regulated boosted output voltage pin (1.8V to 3.6V depending on option code). Also serves as the internal supply after startup. Connect a 10uF ceramic capacitor closely to GND; absolute max -0.3V to 6V.

Key specifications

Parameter Value
Manufacturer BL Shanghai Belling
Package SOT-23-3L
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • BL8536CB3TR33
  • BL8536CB5TR
  • BL8536CC3TR

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 Range Vin 0.9 5 V 2
Output Voltage Range Vout 1.8 3.6 V 2
Hold Voltage Vhold 0.5 0.7 V Iout = 50mA 2
Line regulation 0.1 0.2 %/V Iout = 50mA 2
Load regulation 1 2 % Iout = 0~300mA 2
Switching Frequency Fsoc 0.7 1 1.4 MHz Vout=0.95Vo, No inductor 2
Max Duty cycle 85 90 95 % Vout=0.95Vo, No inductor 2
Quiescent Current at Vout IQ 5 8 15 uA Vout=1.05*Vo 2
PMOS Rdson RdsonP 400 600 mohm Isw =100mA 2
NMOS Rdson RdsonN 200 300 mohm Isw =100mA 2
Startup Voltage Vstart 0.9 V Iout = 1mA 2
Output voltage accuracy 2 % Iout = 0mA 2
Supply current at Vin 20 uA Iout = 0mA 2
Efficiency 85 % Iout = 100mA 2
SW Leakage Current Iswlk 1 uA Vout=3.6V, Vsw=0 or 5.2V 2
SW Voltage VSW -0.3 6 V 2
OUT Voltage VOUT -0.3 6 V 2
Max Operating Junction Temperature Tj 125 C 2
Maximum Power Dissipation SOT23-3 450 mW SOT23-3 package 2
Ambient Temperature Ta -40 85 C 2
Storage Temperature Ts -55 150 C 2
Lead Temperature 260 C 10 s 2

CAD (KiCad official)

  • Symbol: BL8536CB3TR33
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)
  • 3D model files: bl8536cb3tr33-etched.step / bl8536cb3tr33-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl8536cb3tr33.step / bl8536cb3tr33.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
bl8536cb3tr33.step 59 KB You want the bare part, or you mark your own boards.
bl8536cb3tr33-etched.step 2.9 MB You want the part with BL8536CB3TR33 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 676 faces against 69 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: BL Shanghai Belling datasheet (6 pp, sha256 ed58218e9c427062, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF