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Contents

README

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BL8075CB5TR33

BL Shanghai Belling · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

BL8075CB5TR33 from BL Shanghai Belling, in a SOT-23-5. 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 VIN power_in Unregulated supply input, 3V to 16V (20V absolute max). Bypass locally with a 1uF ceramic capacitor to GND.
2 GND power_in Device ground return; common reference for VIN, VOUT and EN.
3 EN input Active-high enable input. Drive >=1.5V (up to VIN) to enable the regulator; drive <=0.4V to shut down the LDO (Iq drops to ~1uA at Vin=12V, VEN=0V). Do not leave floating.
4 NC unconnected No internal connection. May be left floating or tied to GND for board layout convenience.
5 VOUT power_out Regulated output, factory-trimmed to 3.3V (+/-2%) for the TR33 suffix. Delivers up to 500mA with 600mV dropout at 300mA; requires a 1uF ceramic output capacitor to GND for stability.

Key specifications

Parameter Value
Manufacturer BL Shanghai Belling
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

  • BL8075CB5TR33
  • BL8075CB5TR33CC3TR

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Output Voltage Accuracy (default, no 1 suffix) -2 2 % Voltage accuracy code blank (default) 2
Input Voltage Vin 3 16 V 3
Input Voltage Range 3 16 V 2
Ambient Temperature -40 85 C 2
Output Voltage Temperature Coefficient -100 100 ppm/C Iout=10mA 3
EN Input Voltage H Venh 1.5 V 3
EN Input Voltage L Venl 0 0.4 V 3
Line Regulation 0.2 0.3 %/V Iout=10mA, 4V≤Vin≤16V 3
Load Regulation 20 40 mV Vin=Set Vout+1V, 1mA≤Iout≤100mA 3
Quiescent Current Iq 10 20 uA Vin=Set Vout+1V, VEN=H 3
Maximum Input Voltage 20 V 2
Operating Junction Temperature (Tj) 125 C 2
Ambient Temperature (Ta) -40 85 C 2
Power Dissipation PD 400 mW PD@Ta=25C, SOT-23-5 2
Storage Temperature (Ts) -40 150 C 2
Lead Temperature 260 C 10S 2
Output Voltage Vout 3.3 V Vout>1.5V, Vin-Vout=1.2V, 1mA≤Iout≤30mA 3
Maximum Output Current Iout(Max.) 500 mA Vin-Vout=1.2V 3
Dropout Voltage 600 mV Iout=300mA, Vout = 3.3V 3
Quiescent Current (off) Iq 1 uA Vin=12V, VEN=0V 3
Thermal Shutdown 150 °C 3

CAD (KiCad official)

  • Symbol: BL8075CB5TR33
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: bl8075cb5tr33-etched.step / bl8075cb5tr33-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl8075cb5tr33.step / bl8075cb5tr33.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
bl8075cb5tr33.step 85 KB You want the bare part, or you mark your own boards.
bl8075cb5tr33-etched.step 2.8 MB You want the part with BL8075CB5TR33 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 652 faces against 102 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 73ed30c1a6b4591d, 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