component

MS78L05S

Public Made by Adom

by adom

MSKSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MS78L05S

MSKSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23

MS78L05S from MSKSEMI, in a SOT-23. 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 OUT power_out Regulated 5 V output (4.75 V to 5.25 V over the stated conditions) rated for a maximum output current of 0.1 A, with a 0.1 µF bypass capacitor recommended close to the regulator for stability.
2 IN power_in Unregulated input supply with an absolute maximum of 30 V, where regulation is specified for 7 V ≤ Vi ≤ 20 V, and a 0.33 µF input capacitor is recommended close to the regulator.
3 GND power_in Ground reference pin for the regulator; the datasheet gives no additional electrical limits for this pin.

Key specifications

Parameter Value
Manufacturer MSKSEMI
Package SOT-23
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 Vo 4.75 5 5.25 V 7V≤Vi≤20V, Io=1mA~40mA 2
Load Regulation ΔVo 15 60 mV Io=1mA~100mA,TJ=25℃ 2
Load Regulation ΔVo 8 30 mV Io=1mA~40mA,TJ=25℃ 2
Line regulation ΔVo 32 150 mV 7V≤Vil≤20V 2
Line regulation ΔVo 26 100 mV 8V≤Vi≤20V,TJ=25℃ 2
Quiescent Current Iq 3.8 6 mA 2
Quiescent Current Change ΔIq 1.5 mA 8V≤Vi≤20V 2
Ripple Rejection RR 41 49 dB 8V≤Vi≤20V,f=120Hz 2
Dropout Voltage Vd 1.7 V 2
Output Noise Voltage VN 42 μV 10Hz≤f≤100KHz,TJ=25℃ 2
Input Voltage Vi 30 V 2
Continuous Total Dissipation PD 0.25 W Ta=25℃ 2
Maximum Output Current IO 0.1 A 2
Operating Junction Temperature Range TOPR -40 125 ℃ 2
Storage Temperature Range TSTG -65 150 ℃ 2
Thermal Resistance from Junction to Ambient RθJA 160 ℃/W 2

CAD (KiCad official)

  • Symbol: MS78L05S
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: ms78l05s-etched.step / ms78l05s-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ms78l05s.step / ms78l05s.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (5 pp, sha256 4b95b428d62e217e, retrieved 2026-10-18, 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