component
LM25085MYX
Public Made by Adomby adom
Texas Instruments DC-DC Converters, MSOP-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM25085MYX
Texas Instruments · DC-DC Converters · MSOP-8-EP
LM25085MYX 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), and CADJ (recommended 1000pF) filters noise on this pin. |
| 2 | RT | input | On-time control and shutdown: an external resistor from VIN to RT sets the buck switch on-time and switching frequency (up to 1MHz), 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 1.25V. |
| 4 | GND | power_in | Circuit ground, the ground reference for all internal circuitry. |
| 5 | ISEN | input | Current sense input for current limit detection: connect to the PFET drain when using RDS(ON) sensing, or to the PFET source and the sense resistor when using an external sense resistor. |
| 6 | PGATE | output | Gate driver output that connects to the gate of the external PFET, swinging between VIN (Q1 off) and the VCC pin voltage (Q1 on). |
| 7 | VCC | power_in | Output of the gate driver bias regulator, regulated approximately 7.7V below VIN, which requires a low ESR capacitor (0.47µF) from VIN to VCC placed as close as possible to the pins. |
| 8 | VIN | power_in | Input supply voltage with an operating range of 4.5V to 42V, requiring a low ESR bypass capacitor 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:
LM25085MYX - Footprint:
Package_SO:MSOP-8-1EP_3x3mm_P0.65mm_EP1.5x1.8mm - 3D model: MSOP-8-EP (KiCad packages3D, STEP)
- 3D model files:
lm25085myx-etched.step/lm25085myx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm25085myx.step/lm25085myx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (40 pp, sha256
255a8aef9377a78d, retrieved 2026-10-11, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).