component

BL9198-18BAPURN

Public Made by Adom

by adom

BL(Shanghai Belling) Linear Voltage Regulators (LDO), SC-70-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BL9198-18BAPURN

BL(Shanghai Belling) · Linear Voltage Regulators (LDO) · SC-70-5

BL9198-18BAPURN from BL(Shanghai Belling), in a SC-70-5. 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 VIN power_in Power input voltage, operating range 2V to 6V (absolute maximum -0.3V to +6V).
2 GND power_in Ground.
3 EN input Chip enable, active high with internal 8 MΩ pull-down for the A option (this MPN); logic high above 1.2V turns the output on and logic low below 0.4V shuts it down.
4 NC unconnected No connection.
5 VOUT power_out Regulated output voltage (1.8V for this part), 300mA maximum output current, with 1µF minimum output capacitor (2.2µF or more recommended for the 1.8V version).

Key specifications

Parameter Value
Manufacturer BL(Shanghai Belling)
Package SC-70-5
Category Power Management ICs
Pins 5

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 VIN 2 6 V 4
Output Voltage Accuracy (B version) ΔVOUT -2 2 % VIN=3.6V, IOUT=1mA 4
Current Limit ILIM 400 430 mA RLOAD=1Ω 4
Quiescent Current IQ 90 130 µA VEN>1.2V, IOUT=0mA 4
Dropout Voltage VDROP 130 180 mV IOUT=200mA, VOUT=2.8V 4
Dropout Voltage VDROP 210 300 mV IOUT=300mA, VOUT=2.8V 4
Line Regulation ΔVLINE 0.05 0.17 %/V VIN=3.6V to 5.5V, IOUT=1mA 4
Load Regulation ΔVLOAD 2 %/A 1mA<IOUT<300mA 4
Standby Current ISTBY 0.01 1 µA VEN=GND, Shutdown 4
EN Input Bias Current IIBSD 500 nA VEN=GND or VIN 4
EN Logic Low Threshold VIL 0.4 V VIN=3V to 5.5V, Shutdown 4
EN Logic High Threshold VIH 1.2 V VIN=3V to 5.5V, Start up 4
Output Voltage Temperature Coefficient TCVOUT 60 ppm/℃ IOUT=1mA, printed ±60 4
Output Noise Voltage eNO 100 µVRMS 10Hz to100KHz, IOUT=200mA 4
PSRR PSRR -78 dB f=217Hz, IOUT=100mA 4
PSRR PSRR -72 dB f=1KHz, IOUT=100mA 4
PSRR PSRR -52 dB f=10KHz, IOUT=100mA 4
Thermal Shutdown Temperature TSD 165 ℃ Shutdown, Temp increasing 4
Thermal Shutdown Hysteresis TSDHY 30 ℃ 4
Input Supply Voltage VIN -0.3 6 V 2
EN Pin Input Voltage VEN -0.3 V -0.3V to VIN 2
Output Voltage VOUT -0.3 V -0.3V to VIN+0.3V 2
Output Current IOUT 300 mA 2
Maximum Junction Temperature TJ 150 °C 2
Operating Temperature Range TA -40 85 °C 2
Storage Temperature Range Tstg -65 125 °C 2
Lead Temperature 300 °C Soldering, 10s 2
Thermal Resistance Junction-Ambient SC70-5 θJA 333 °C/W approx. 1 square of 1 oz copper 2
Thermal Resistance Junction-Case SC70-5 θJC 170 °C/W approx. 1 square of 1 oz copper 2

CAD (KiCad official)

  • Symbol: BL9198-18BAPURN
  • Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
  • 3D model: SC-70-5 (KiCad packages3D, STEP)
  • 3D model files: bl9198-18bapurn-etched.step / bl9198-18bapurn-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl9198-18bapurn.step / bl9198-18bapurn.glb are the bare package body.

Provenance

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

  • Datasheet: BL(Shanghai Belling) datasheet (14 pp, sha256 075a365cf0f0b5c7, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-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).

Datasheet PDF