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bl8072cotr50

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BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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docs bl8072cotr50: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain S… · Ray 24d ago
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bl8072cotr50-etched.fit.json bl8072cotr50: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
bl8072cotr50-etched.glb bl8072cotr50: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain S… · Ray 24d ago
bl8072cotr50-etched.step bl8072cotr50: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain S… · Ray 24d ago
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package.json Publish 0.1.0 · Ray 2mo ago
page.json bl8072cotr50: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain S… · Ray 24d ago
README.md bl8072cotr50: specified limits as data (metadata.characteristics, 16 rows from the datasheet) · Ray 24d ago

BL8072COTR50

BL Shanghai Belling · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252

BL8072COTR50 from BL Shanghai Belling, in a TO-252. 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 Vss/ADJ power_in Ground / adjust pin. In fixed-voltage application this pin is tied to GND (0V). In the adjustable configuration it becomes the ADJ feedback node connected to the R1/R2 divider from Vout; the internal reference (VRef) is regulated between Vout and this pin (Vout = VRef*(1+R2/R1) + IAdj*R2, with IAdj ~2uA). A 0.1uF bypass capacitor from ADJ to GND is recommended to improve ripple rejection.
2 VOUT power_out Regulated output voltage pin. Delivers up to 2A with ±2% accuracy (±1% option). For the -50 suffix Vout = 5.0V typical. Requires a 1uF ceramic output capacitor to GND for stability.
3 VDD power_in Input supply pin. Recommended operating input voltage up to 18V, absolute maximum 20V. Requires a 1uF ceramic bypass capacitor to GND. Dropout typical 850mV @ 1.5A for Vout ≥ 2.0V.

Key specifications

Parameter Value
Manufacturer BL Shanghai Belling
Package TO-252
Category PMIC
Pins 3

Ordering variants

  • BL8072COTR50
  • BL8072COTR50CLTR

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 voltage-accuracy suffix) Vout -2 2 % Voltage accuracy blank (default) = ±2%; suffix 1 would be ±1% 2
Maximum output current Iout(Max.) 2 A Vin-Vout=1V, Vout ≥ 2.0V 3
Dropout voltage 850 950 mV Iout=1.5A, Vout ≥ 2.0V 3
Line regulation 0.1 0.3 %/V Iout=10mA, Set Vout+1V≤Vin≤18V 3
Load regulation 10 30 mV 1mA≤Iout≤1.5A 3
Quiescent current Iq 3 5 uA Vin=Set Vout+1V 3
Input voltage Vin 18 V 3
Output voltage temperature coefficient T 200 ppm/C Iout=100mA 3
Thermal resistance, junction to case (TO-252) 12 C/W Junction to case, TO-252 3
Input voltage range (recommended) Vin 18 V 2
Ambient temperature (recommended) Ta -40 85 C 2
Maximum input voltage 20 V 2
Operating junction temperature Tj 125 C 2
Ambient temperature (absolute maximum) Ta -40 85 C 2
Storage temperature Ts -40 150 C 2
Lead temperature 260 C 10 s 2

CAD (KiCad official)

  • Symbol: BL8072COTR50
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: bl8072cotr50-etched.step / bl8072cotr50-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl8072cotr50.step / bl8072cotr50.glb are the bare package body.

Provenance

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

  • Datasheet: BL Shanghai Belling datasheet (None pp, sha256 48a7d46f1c8be9ee, 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