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HT7540-2-MS

MSKSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3

HT7540-2-MS from MSKSEMI, in a SOT-89-3. 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 GND power_in Ground reference pin of the linear regulator.
2 VIN power_in Regulator input pin; the series is stated to withstand voltage up to 30V.
3 VOUT power_out Regulated output pin, 4.0V for HT7540-2-MS, with output voltage accuracy of ±1%, rated for up to 100mA output current.

Key specifications

Parameter Value
Manufacturer MSKSEMI
Package SOT-89-3
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 -1 1 % Printed as tolerance ±1% in features 2
Withstanding voltage 30 V Printed as withstanding voltage 30V in features 2
Quiescent current 1.5 μA Printed as quiescent current 1.5μA in features; no test conditions given 2
High output current 100 mA Printed as high output current 100mA in features; no test conditions given 2
Nominal output voltage VOUT 4 V Output option 4.0V for HT7540-2-MS per order information 3

CAD (KiCad official)

  • Symbol: HT7540-2-MS
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: ht7540-2-ms-etched.step / ht7540-2-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht7540-2-ms.step / ht7540-2-ms.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (11 pp, sha256 7c6d79ef158c63b9, retrieved 2026-11-05, 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