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Contents

README

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FM5327

Shenzhen Fuman · Power Management - Specialized · ESOP-8L

FM5327 from Shenzhen Fuman, in a ESOP-8L. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VIN power_in Power supply input; recommended operating range 4.755.25 V, absolute maximum -0.36 V
2 DCP output USB DCP output pin for automatic D+ and D- switching in Apple, Samsung, and BC1.2 fast charging protocols with 2.7V output on both D+ and D- lines
3 KEY bidirectional Pushbutton key input and NTC thermistor sense current output; outputs 20uA constant current source for battery temperature monitoring using 100kΩ NTC thermistor with 82kΩ parallel adjustment resistor
4 LED1 output LED indicator driver output 1; drives LED indicators in 1-4 LED or 2-LED battery state-of-charge display modes with 1Hz or 2Hz blinking patterns
5 LED2 output LED indicator driver output 2; drives LED indicators in 1-4 LED or 2-LED battery state-of-charge display modes with 1Hz or 2Hz blinking patterns
6 BAT bidirectional Battery positive terminal detect and charging current source pin; monitors battery voltage range 2.7~4.4 V and provides charging current up to 2.2 A with three-stage charging (trickle/constant current/constant voltage) and adjustable float voltage 4.2V or 4.35V
7 SW output Synchronous boost converter inductor drive output and power MOSFET drain pin; switches at 1000 kHz for boost mode and 500 kHz for charging mode with soft-start control
8 OUT output Regulated power output pin for external load; provides 5V boost output up to 2.4A with no-load voltage 5.1V, output overcurrent protection threshold 4.2V, and short-circuit protection with 1s recovery delay
9 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Shenzhen Fuman
Package ESOP-8L
Category Power Management (PMIC)
Pins 9

CAD (KiCad official)

  • Symbol: FM5327
  • Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm
  • 3D model: ESOP-8L (KiCad packages3D, STEP)
  • 3D model files: fm5327-etched.step / fm5327-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fm5327.step / fm5327.glb are the bare package body.

Provenance

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

  • Datasheet: Shenzhen Fuman datasheet (15 pp, sha256 6093a564c89053ab, retrieved 2026-09-21, 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 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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