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BL78M09

Public Made by Adom

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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.

componentpower management (pmic)bl78m09factory-2.0.0extractor-text
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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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BL78M09

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

BL78M09 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 on the package picture), with a 0.33μF input capacitor to ground and a maximum input voltage of 35 V.
2 GND power_in Ground pin (G on the package picture), common to the input and output capacitors in the application circuit.
3 VO power_out Regulated 9 V output (O on the package picture), with a 0.1μF output capacitor to ground and output current in excess of 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 0 125 ℃ 1
Storage temperature range TSTG -65 150 ℃ 1
Output voltage VO 8.65 9 9.35 V IO=350mA,VIN=16V 2
Output voltage VO 8.55 9 9.45 V 5mA≤IO≤350mA 2
Load regulation △Regload 20 180 mV 5mA≤IO≤500mA 2
Load regulation △Regload 10 90 mV 5mA≤IO≤200mA 2
Line regulation △Regline 6 100 mV 11.5V≤VIN≤26V,IO=200mA 2
Line regulation △Regline 2 50 mV 12V≤VIN≤26V, IO=200mA 2
Quiescent Current IQ 4.6 6 mA VIN=16V,IO=350mA 2
Quiescent Current Change △IQ 0.5 mA 5mA≤IO≤350mA 2
Quiescent Current Change △IQ 0.8 mA 11.5V≤VIN≤26V,IO=200mA 2
Ripple Rejection RR 56 80 dB f=120Hz,IO=300mA, VI=13V to 23V 2
Dropout Voltage VD 2 V TA=+25℃,IO=350mA 2
Output Noise Voltage VN 60 μV/VO 10Hz≤f≤100KHz 2
Short Circuit Current ISC 250 mA VI=16V,TJ=25℃ 2
Peak Current IPK 700 mA TJ=25℃ 2

CAD (KiCad official)

  • Symbol: BL78M09
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: bl78m09-etched.step / bl78m09-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl78m09.step / bl78m09.glb are the bare package body.

Provenance

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

  • Datasheet: GME(银河微电) datasheet (4 pp, sha256 4b6fb0e00e510e55, 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