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LM25085QMYX

Public Made by Adom

by adom

Texas Instruments DC-DC Converters, MSOP-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LM25085QMYX

Texas Instruments · DC-DC Converters · MSOP-8-EP

LM25085QMYX from Texas Instruments, in a MSOP-8-EP. 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 ADJ input Current limit adjust: the current limit threshold is set by an external resistor from VIN to ADJ, together with the external sense resistor or the PFET RDS(ON).
2 RT input On-time control and shutdown: an external resistor from VIN to RT sets the buck switch on-time and switching frequency, and grounding this pin shuts down the controller.
3 FB input Voltage feedback from the regulated output, input to the regulation and over-voltage comparators, with a regulation level of 1.25 V.
4 GND power_in Circuit ground, the ground reference for all internal circuitry.
5 ISEN input Current sense input for current limit detection, connected to the PFET drain for RDS(ON) sensing or to the PFET source and sense resistor when using a sense resistor.
6 PGATE output Gate driver output that connects to the gate of the external PFET.
7 VCC power_out Output of the gate driver bias regulator (negative relative to VIN) that biases the PFET gate driver; a low ESR capacitor is required from VIN to VCC, located as close as possible to the pins.
8 VIN power_in Input supply voltage with an operating range of 4.5 V to 42 V; a low ESR bypass capacitor must be located as close as possible to the VIN and GND pins.
9 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package MSOP-8-EP
Category Power Management (PMIC)
Pins 9

CAD (KiCad official)

  • Symbol: LM25085QMYX
  • Footprint: Package_SO:MSOP-8-1EP_3x3mm_P0.65mm_EP1.5x1.8mm
  • 3D model: MSOP-8-EP (KiCad packages3D, STEP)
  • 3D model files: lm25085qmyx-etched.step / lm25085qmyx-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm25085qmyx.step / lm25085qmyx.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (40 pp, sha256 255a8aef9377a78d, retrieved 2026-10-10, 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