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BA05FP-E2

ROHM Semicon · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252

BA05FP-E2 from ROHM Semicon, in a TO-252. 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 VCC power_in Input supply pin, with a recommended input voltage of 6 V to 25 V for the BA05 and an absolute maximum power supply voltage of 35 V; a 0.33 µF bypass capacitor should be placed as close as possible between this pin and GND.
2 GND power_in Ground reference pin for the regulator; the output capacitor (22 µF recommended) and the input bypass capacitor (0.33 µF) are returned to this pin.
3 OUT power_out Regulated 5 V output (4.75 V to 5.25 V) with a maximum output current of 1 A; a capacitor of 22 µF is recommended between OUT and GND to prevent oscillation.

Key specifications

Parameter Value
Manufacturer ROHM Semicon
Package TO-252
Category Power Management (PMIC)
Pins 3

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 VO1 4.75 5 5.25 V 3
Ripple rejection ratio R.R. 45 55 dB eIN = 1Vrms, f = 120Hz, Io = 100mA 3
Input stability Reg.I 20 100 mV VIN = 6→25V 3
Load regulation Reg.L 50 150 mV Io = 5mA→1A 3
Temperature coefficient of output voltage Tcvo -0.02 0.02 % / °C Io = 5mA, Tj = 0~125°C 3
Dropout voltage Vd 0.3 0.5 V Vcc = 0.95VO 3
Bias current Ib 2.5 5 mA Io = 0mA 3
Peak output current IO-P 1 1.5 A Tj = 25°C 3
Input voltage VIN 6 25 V 2
Output current Io 1 A 2
Power supply voltage VCC 35 V Ta = 25°C 2
Power dissipation (TO252-3) Pd 1000 mW Reduced by 8mW for each increase in Ta of 1°C over 25°C 2
Peak applied voltage Vsurge 50 V Voltage application time: 200 msec or less 2
Operating temperature Topr -40 85 °C 2
Storage temperature Tstg -55 150 °C 2
Thermal resistance junction-to-case (TO252-3) θj-c 12.5 °C/W Infinite heat sink 9
Thermal resistance junction-to-case (TO252-3, IC alone) θj-c 125 °C/W IC alone 9

CAD (KiCad official)

  • Symbol: BA05FP-E2
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: ba05fp-e2-etched.step / ba05fp-e2-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ba05fp-e2.step / ba05fp-e2.glb are the bare package body.

Provenance

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

  • Datasheet: ROHM Semicon datasheet (9 pp, sha256 da6199962cc134cf, retrieved 2026-10-31, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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