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MIC37100-3.3WS

Public Made by Adom

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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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MIC37100-3.3WS

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

MIC37100-3.3WS 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; operating range is +2.25V to +6V (absolute maximum 0V to +6.5V).
2 GND power_in Ground; the TAB is also connected to GND.
3 OUT power_out Regulator output, fixed 3.3V for the -3.3 variant, requiring an output capacitor of 10µF or greater for stability with ceramics.

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 accuracy VOUT -1 1 % 10mA 4
Output Voltage accuracy over line/load VOUT -2 2 % 10mA ≤ IOUT ≤ 1A, VOUT + 1V ≤ VIN ≤ 6V 4
Line Regulation 0.06 0.5 % IOUT = 10mA, VOUT + 1V ≤ VIN ≤ 6V 4
Load Regulation 0.2 1 % VIN = VOUT + 1V, 10mA ≤ IOUT ≤ 1A 4
Dropout Voltage VDO 125 200 mV IOUT = 100mA, ∆VOUT = -1% 4
Dropout Voltage VDO 210 350 mV IOUT = 500mA, ∆VOUT = -1% 4
Dropout Voltage VDO 250 400 mV IOUT = 750mA, ∆VOUT = -1% 4
Dropout Voltage VDO 280 500 mV IOUT = 1A, ∆VOUT = -1% 4
Ground Current IGND 650 µA IOUT = 100mA, VIN = VOUT + 1V 4
Ground Current IGND 3.5 mA IOUT = 500mA, VIN = VOUT + 1V 4
Ground Current IGND 6.7 mA IOUT = 750mA, VIN = VOUT + 1V 4
Ground Current 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
Output Voltage Temp. Coefficient ∆VOUT/∆T 40 ppm/°C 4
Enable Input Voltage logic low (off) VEN 0.8 V logic low (off) 4
Enable Input Voltage logic high (on) VEN 2.25 V logic high (on) 4
Supply Voltage (absolute maximum) VIN 0 6.5 V 4
Enable Voltage (absolute maximum) VEN 6.5 V 4
Lead Temperature 260 °C soldering, 5 sec. 4
Storage Temperature Ts -65 150 °C 4
Supply Voltage (operating) VIN 2.25 6 V 4
Enable Voltage (operating) VEN 0 6 V 4
Junction Temperature TJ -40 125 °C 4

CAD (KiCad official)

  • Symbol: MIC37100-3.3WS
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223 (KiCad packages3D, STEP)
  • 3D model files: mic37100-3-3ws-etched.step / mic37100-3-3ws-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mic37100-3-3ws.step / mic37100-3-3ws.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (15 pp, sha256 fbead12005bfe8d9, retrieved 2026-10-24, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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