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BL78M15

Public Made by Adom

by adom

GME(银河微电) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BL78M15

GME(银河微电) · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252

BL78M15 from GME(银河微电), 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 VI power_in Unregulated input voltage pin (I), rated for a maximum of 35 V and used with a 0.33 µF input capacitor Ci in the test circuit.
2 GND power_in Common ground pin (G), connected to the ground return of both the input capacitor Ci and the output capacitor Co.
3 VO power_out Regulated 15 V output pin (O), typically 15 V with 0.1 µF output capacitor Co, delivering over 0.5 A.

Key specifications

Parameter Value
Manufacturer GME(银河微电)
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
Input voltage VI 35 V 1
Power Dissipation PD 1.25 W 1
Thermal Resistance Junction-Air RθJA 92 ℃/W 1
Operating junction temperature TOPR -40 125 ℃ 1
Storage temperature range Tj,Tstg -65 150 ℃ 1
Output voltage VO 14.4 15 15.6 V IO=350mA,VIN=23V 2
Output voltage VO 14.25 15.75 V 5mA≤IO≤350mA 2
Load regulation △Regload 300 mV 5mA≤IO≤500mA 2
Load regulation △Regload 150 mV 5mA≤IO≤200mA 2
Line regulation △Regline 100 mV 17.5V≤VIN≤30V,IO=200mA 2
Line regulation △Regline 50 mV 20V≤VIN≤30V, IO=200mA 2
Quiescent Current IQ 4.1 6 mA VIN=23V,IO=350mA 2
Quiescent Current Change △IQ 0.5 mA 5mA≤IO≤350mA 2
Quiescent Current Change △IQ 0.8 mA 17.5V≤VIN≤30V,IO=200mA 2
Ripple Rejection RR 54 dB f=120Hz,IO=300mA,VI=18.5V to 28.5V 2
Output Voltage Drift ΔV/ΔT -1 mV/℃ IO=5mA, TJ=0 to+125℃ 2
Output Noise Voltage VN 100 μV/VO 10Hz≤f≤100KHz 2
Dropout Voltage VD 2 V TA=+25℃,IO=500mA 2
Short Circuit Current ISC 300 mA VI=35V,TJ=25℃ 2
Peak Current IPK 700 mA TJ=25℃ 2

CAD (KiCad official)

  • Symbol: BL78M15
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: bl78m15-etched.step / bl78m15-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl78m15.step / bl78m15.glb are the bare package body.

Provenance

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

  • Datasheet: GME(银河微电) datasheet (3 pp, sha256 04cce74d99c92782, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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