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MIC37100-2.5WS

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Microchip Tech Linear Voltage Regulators (LDO), SOT-223. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MIC37100-2.5WS

Microchip Tech · Linear Voltage Regulators (LDO) · SOT-223

MIC37100-2.5WS from Microchip Tech, in a SOT-223. 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 for the regulator; the datasheet guarantees a 500 mV maximum dropout at full load and over temperature.
2 GND power_in Ground pin, which the datasheet's pin table also assigns to the TAB.
3 OUT power_out Regulator output, guaranteed to supply at least 1A and requiring a 10 µF or greater ceramic output capacitor for stability.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOT-223
Category Power Management ICs
Pins 3

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Output Voltage tolerance VOUT -1 1 % 10 mA 4
Output Voltage tolerance over line and load VOUT -2 2 % 10 mA ≤ IOUT ≤ 1A, VOUT + 1V ≤ VIN ≤ 6V 4
Line Regulation 0.06 0.5 % IOUT = 10 mA, VOUT + 1V ≤ VIN ≤ 6V 4
Load Regulation 0.2 1 % VIN = VOUT + 1V, 10 mA ≤ IOUT ≤ 1A 4
Dropout Voltage VDO 125 200 mV IOUT = 100 mA, ΔVOUT = -2% 4
Dropout Voltage VDO 210 350 mV IOUT = 500 mA, ΔVOUT = -2% 4
Dropout Voltage VDO 250 400 mV IOUT = 750 mA, ΔVOUT = -2% 4
Dropout Voltage VDO 280 500 mV IOUT = 1A, ΔVOUT = -1% 4
Ground Current (quiescent) IGND 11 25 mA IOUT = 1A, VIN = VOUT + 1V 4
Current Limit IOUT(lim) 1.6 2.5 A VOUT = 0V, VIN = VOUT + 1V 4
Enable Input Voltage, logic low (OFF) VEN 0.8 V Logic low (OFF) 5
Enable Input Voltage, logic high (ON) VEN 2.25 V Logic high (ON) 5
Enable Input Current IEN 1 10 30 µA VEN = 2.25V 5
Enable Input Current IEN 2 µA VEN = 0.8V 5
Enable Input Current (second max row, conditions not printed) IEN 4 µA 5
Flag Output Leakage Current IFLG(leak) 0.01 1 µA VOH = 6V 5
Flag Output Leakage Current (second max row, conditions not printed) IFLG(leak) 2 µA 5
Output Low Voltage VFLG(do) 210 500 mV VIN = 2.25V, IOL = 250 µA 5
Flag Low Threshold VFLG 93 % % of VOUT 5
Flag High Threshold 99.2 % % of VOUT 5
Supply Voltage (VIN) absolute maximum VIN 0 6.5 V 4
Enable Voltage absolute maximum VEN 6.5 V 4
Supply Voltage (VIN) operating range VIN 2.25 6 V 4
Enable Voltage operating range VEN 0 6 V 4
Junction Operating Temperature Range TJ -40 125 °C 6
Storage Temperature Range TS -65 150 °C 6
Lead Temperature (soldering, 5 sec.) 260 °C 6
Thermal Resistance SOT-223, junction-to-case JC 15 °C/W 6

CAD (KiCad official)

  • Symbol: MIC37100-2.5WS
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223 (KiCad packages3D, STEP)
  • 3D model files: mic37100-2-5ws-etched.step / mic37100-2-5ws-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mic37100-2-5ws.step / mic37100-2-5ws.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (28 pp, sha256 905f975c475542a5, retrieved 2026-10-29, tier: manufacturer)
  • 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