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Contents

README

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LMX5069MS

Wuxi Maxinmicro · Surge Protection Devices (SPDs) · MSOP-10

LMX5069MS from Wuxi Maxinmicro, in a MSOP-10. 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 SENSE input Current sense input: the voltage across the current-sense resistor RSENSE is measured from VIN to this pin, and when it reaches the current-limit threshold (value not legible in extracted text) the load current is limited and the fault timer activates.
2 VIN power_in Positive supply input; a small ceramic bypass capacitor placed close to this pin is recommended to suppress transients that occur when the load current is switched off.
3 UVLO input Dual-function control pin: when used as an ENABLE pin and pulled down it shuts off the internal pass MOSFET, and as a UVLO pin it programs the undervoltage trip point through an external resistor divider.
4 OVLO input Overvoltage lockout input: an external resistor divider from the system input voltage sets the overvoltage turn-off threshold, and an internal current source provides hysteresis (disable threshold value not legible in extracted text).
5 GND power_in Circuit ground.
6 Timer passive Timing capacitor pin: an external capacitor connected here sets the insertion time delay, the fault timeout period and the restart timing.
7 PWR passive Power limit set: an external resistor connected to this pin, in conjunction with the current-sense resistor, sets the maximum power dissipation allowed in the external series pass MOSFET.
8 PGD output Open-drain power good indicator output: it is active when the external MOSFET VDS decreases below the threshold and switches low when VDS rises above it (threshold values not legible in extracted text).
9 OUT input Output feedback input: connect to the output rail at the external MOSFET source, used internally to determine MOSFET VDS for power limiting and to control the PGD indicator.
10 GATE output Gate drive output: connect to the external MOSFET gate; when enabled, the gate voltage is typically above the OUT pin by a value not legible in extracted text.

Key specifications

Parameter Value
Manufacturer Wuxi Maxinmicro
Package MSOP-10
Category Circuit Protection
Pins 10

CAD (KiCad official)

  • Symbol: LMX5069MS
  • Footprint: Package_SO:MSOP-10_3x3mm_P0.5mm
  • 3D model: MSOP-10 (KiCad packages3D, STEP)
  • 3D model files: lmx5069ms-etched.step / lmx5069ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lmx5069ms.step / lmx5069ms.glb are the bare package body.

Provenance

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

  • Datasheet: Wuxi Maxinmicro datasheet (20 pp, sha256 d5c999b41237d154, retrieved 2026-10-21, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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