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BL8072CLTR50

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BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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bl8072cltr50-etched.step bl8072cltr50: 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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README.md bl8072cltr50: specified limits as data (metadata.characteristics, 20 rows from the datasheet) · Ray 26d ago

BL8072CLTR50

BL Shanghai Belling · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-4

BL8072CLTR50 from BL Shanghai Belling, in a SOT-223-4. 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. Tie to GND for the fixed-voltage (5.0V) configuration. In the adjustable configuration this pin is the feedback/ADJ node; Vout = Vref x (1 + R2/R1) + I_ADJ x R2, with I_ADJ ~2 uA. Recommended R1 = 1k-10k, and a 0.1 uF ceramic C_ADJ to ground improves ripple rejection.
2 Vout power_out Regulated output. For BL8072CLTR50 this is 5.0V, +/-2% (Vout x0.98 to Vout x1.02). Supplies up to 2A (Iout(Max)=2A when Vin-Vout >= 1V for Vout >= 2.0V). A 1 uF ceramic output capacitor to GND is required for stability.
3 Vdd power_in Regulator input (Vin). Recommended operating range up to 18V, absolute maximum 20V. Requires a 1 uF ceramic bypass capacitor to GND. Typical dropout is 850 mV at Iout=1.5A for Vout>=2.0V (Vout=3.3V spec).

Key specifications

Parameter Value
Manufacturer BL Shanghai Belling
Package SOT-223-4
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • BL8072CLTR50
  • BL8072CLTR50COTR50

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 Vout 0.98 1.02 x Vout 3
Maximum Output Current Iout(Max.) 2 A Vin-Vout=1.9V Vout<1.5V; Vin-Vout=1.5V 1.5V≤Vout<2.0V; Vin-Vout=1V Vout≥2.0V 3
Dropout Voltage 1600 1800 mV Iout=1.5A, Vout<1.5V 3
Dropout Voltage 1200 1400 mV Iout=1.5A, 1.5V≤Vout<2.0V 3
Dropout Voltage 850 950 mV Iout=1.5A, Vout≥2.0V 3
Load Regulation 40 60 mV 1mA≤Iout≤1.5A, Vout<1.5V 3
Load Regulation 20 40 mV 1mA≤Iout≤1.5A, 1.5V≤Vout<2.0V 3
Load Regulation 10 30 mV 1mA≤Iout≤1.5A, Vout≥2.0V 3
Line Regulation 0.1 0.3 %/V Iout=10mA, Set Vout+1V≤Vin≤18V 3
Quiescent Current Iq 3 5 uA Vin=Set Vout+1V 3
Output Voltage Temperature Coefficient 200 ppm/C Iout=100mA 3
Input Voltage Vin 18 V 3
Max Input Voltage Vin 20 V 2
Operating Junction Temperature Tj 125 C 2
Ambient Temperature Ta -40 85 C 2
Storage Temperature Ts -40 150 C 2
Lead Temperature & Time 260 C 10S 2
Input Voltage Range Vin 18 V 2
Ambient Temperature Ta -40 85 C 2
Thermal Resistance Junction to Case (SOT-223) JC 20 C / W junction to case, SOT-223 3

CAD (KiCad official)

  • Symbol: BL8072CLTR50
  • Footprint: Package_TO_SOT_SMD:SOT-223
  • 3D model: SOT-223-4 (KiCad packages3D, STEP)
  • 3D model files: bl8072cltr50-etched.step / bl8072cltr50-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl8072cltr50.step / bl8072cltr50.glb are the bare package body.

Provenance

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

  • Datasheet: BL Shanghai Belling datasheet (7 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