component
LM5085QMYX
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
markdownLM5085QMYX
Texas Instruments · DC-DC Converters · MSOP-8-EP
LM5085QMYX 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 input; the current limit threshold is set by an external resistor from VIN to ADJ in conjunction with the external sense resistor or the PFET's RDS(ON). |
| 2 | RT | input | On-Time Control and Shutdown input; an external resistor from VIN to RT sets the buck switch on-time and switching frequency, or grounding this pin shuts down the controller. |
| 3 | FB | input | Voltage Feedback input to the regulation and over-voltage comparators with regulation level of 1.25V. |
| 4 | GND | power_in | Circuit 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) current sense or to the PFET source and sense resistor when using a current sense resistor. |
| 6 | PGATE | output | Gate Driver Output that swings between VIN when Q1 is off and VCC when Q1 is on; connect to the gate of the external PFET. |
| 7 | VCC | power_out | Output of the negative voltage regulator (relative to VIN) that biases the PFET gate driver; a low ESR capacitor is required from VIN to VCC located close to the pins. |
| 8 | VIN | power_in | Input Supply Voltage with operating input range from 4.5V to 75V; 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:
LM5085QMYX - Footprint:
Package_SO:MSOP-8-1EP_3x3mm_P0.65mm_EP1.5x1.8mm - 3D model: MSOP-8-EP (KiCad packages3D, STEP)
- 3D model files:
lm5085qmyx-etched.step/lm5085qmyx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm5085qmyx.step/lm5085qmyx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (39 pp, sha256
5a34a0aa7ad4c733, retrieved 2026-10-01, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(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).