component

SK78M05

Public Made by Adom

by adom

Suntek 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)sk78m05factory-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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SK78M05

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

SK78M05 from Suntek, 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 VIN power_in Input supply pin; absolute maximum input voltage is 35 V and input must stay typically 2.0 V above the output, with a 0.33uF bypass capacitor recommended.
2 GND power_in Ground, common to input and output voltages.
3 VOUT power_out Regulated output delivering up to 500 mA, with a 0.1uF output capacitor improving transient response but not needed for stability.

Key specifications

Parameter Value
Manufacturer Suntek
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 accuracy (tolerance) -5 5 % 1
Output Voltage Vout 0.964 1.036 vout (multiplier) Io=40mA, VIN=10V 3
Output Voltage Vout 0.96 1.04 vout (multiplier) Io=1mA40mA, VIN=7V18V 3
Output Voltage Vout 0.95 1.05 vout (multiplier) Io=1mA~10mA, VIN=10V 3
Line Regulation LNR -150 150 mV VIN=7V~18V, Io=40mA 3
Line Regulation LNR -100 100 mV VIN=8V~18V, Io=40mA 3
Load Regulation LDR -60 60 mV VIN=10V, Io=1mA~100mA 3
Load Regulation LDR -30 30 mV VIN=10V, Io=1mA~40mA 3
Quiescent Current IQ 5.5 mA VIN=10V, IOUT=40mA 3
Quiescent Current Change △IQ -1.5 1.5 mA VIN=8V~18V, IO=40mA 3
Quiescent Current Change △IQ -0.1 0.1 mA VIN=10V, IOUT=1mA~40mA 3
Input supply voltage VIN 35 V 2
MAX. Output current Iout 500 mA 2
MAX Power Pmax 1.5 W 2
Maximum junction temperature Tj -40 125 ℃ 2
Storage temperature Tstr -55 125 ℃ 2
Soldering temperature and time 260 ℃ Recommended 10S 2

CAD (KiCad official)

  • Symbol: SK78M05
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: sk78m05-etched.step / sk78m05-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sk78m05.step / sk78m05.glb are the bare package body.

Provenance

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

  • Datasheet: Suntek datasheet (8 pp, sha256 15987200a3b64753, 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