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Contents

README

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FH6211N28

鑫飞宏 · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

FH6211N28 from 鑫飞宏, in a SOT-23-5. 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 IN power_in Supply input pin that must be closely decoupled to GND with a 1μF or greater ceramic capacitor; input operating range is 2.0V to 6.0V.
2 GND power_in Ground pin.
3 EN input Active-high enable control input (on when pulled high, off when pulled low, EN high threshold 1.5V and low threshold 0.3V) that must not be left floating.
4 NC unconnected No connection.
5 OUT power_out Regulated output pin that should be bypassed with a 1μF ceramic capacitor from this pin to ground, with ESR of 5 to 100 mΩ and up to 500mA load current.

Key specifications

Parameter Value
Manufacturer 鑫飞宏
Package SOT-23-5
Category Power Management (PMIC)
Pins 5

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Input Voltage Operation Range VIN 2 6 V 4
Quiescent Current (active mode) IQ_ON 36 60 µA Active mode: VEN=VIN 4
Shutdown Current IQ OFF 0.01 1 µA VEN=0V 5
Regulated Output Voltage VOUT -2 2 % IOUT=1mA, -40°C≤TA≤85°C 5
Line Regulation RegLINE 0.03 0.2 % VIN = VOUT +1V to 5.5V, IOUT = 10mA 5
Load Regulation RegLOAD 0.2 0.7 % IOUT from 1mA to 300mA 5
Current Limit ILIM 300 mA 5
Power Supply Rejection Ratio 75 dB f=1kHz, COUT=1μF, IOUT=20mA 5
Power Supply Rejection Ratio 65 dB f=10kHz, COUT=1μF, IOUT=30mA 5
Soft-start Time TON 25 µs From Enable to Power On 5
EN Low Threshold VENL 0.3 V 5
EN High Threshold VENH 1.5 V 5
EN pull-down resistance RPD 0.8 1 1.3 MΩ 5
Over-temperature Shutdown Threshold TTSD 155 °C 5
Over-temperature Shutdown Hysteresis TTSR 20 °C 5
IN Voltage -0.3 6.5 V 3
Other Pin Voltage -0.3 V Upper limit printed as VIN+0.3 3
Maximum Load Current 500 mA 3
Operating Junction Temperature -40 150 °C 3
Storage Temperature -65 150 °C 3
Lead Temperature (Soldering) 300 °C Soldering, 10 sec 3
Input Voltage VIN 2 6 V 3
Output Current IOUT 0 500 mA 3
Operating Ambient Temperature TA -40 85 °C 3
Effective Input Ceramic Capacitor Value CIN 0.47 4.7 uF 3
Effective Output Ceramic Capacitor Value COUT 0.47 4.7 uF 3
Input and Output Capacitor Equivalent Series Resistance ESR 5 100 mΩ 3

CAD (KiCad official)

  • Symbol: FH6211N28
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: fh6211n28-etched.step / fh6211n28-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fh6211n28.step / fh6211n28.glb are the bare package body.

Provenance

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

  • Datasheet: 鑫飞宏 datasheet (12 pp, sha256 a54ba58a496a575b, retrieved 2026-10-19, 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