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MCP1701AT-3302I

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Microchip Tech Linear Voltage Regulators (LDO), SOT-23A-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MCP1701AT-3302I

Microchip Tech · Linear Voltage Regulators (LDO) · SOT-23A-3

MCP1701AT-3302I from Microchip Tech, in a SOT-23A-3. 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 GND power_in Regulator ground; tie to the negative side of the output and input capacitors, only the ~2 µA (typ.) LDO bias current flows out of this pin and output regulation is referenced to it.
2 VOUT power_out Regulated voltage output (3.3V for this part); connect to the positive side of the load and output capacitor (minimum 1 µF), carrying a current equal to the DC load current.
3 VIN power_in Unregulated supply input, operating up to 10 V (absolute maximum +12V); connect the input supply and a 1 µF input capacitor placed close to this pin.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOT-23A-3
Category Power Supply Chip
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
Maximum Output Current IOUTMAX 150 mA VOUT = 3.3V (VIN = VR + 1.0V) 3
Load Regulation ΔVOUT/VOUT -2.72 1.3 2.72 % VOUT = 3.3V, 1 mA ≤ IOUT ≤ 80 mA (typ ±1.3) 3
Dropout Voltage VIN - VOUT 400 700 mV IOUT = 150 mA, VR = 3.3V 3
Input Quiescent Current IQ 2 4.5 µA VIN = VR + 1.0V 3
Line Regulation ΔVOUT•100/ΔVIN•VOUT 0.2 0.3 %/V IOUT = 40 mA, (VR +1) ≤ VIN ≤ 10.0V 3
Input Voltage VIN 10 V 3
Temperature Coefficient of Output Voltage TCVOUT 100 ppm/°C IOUT = 40 mA, -40°C ≤ TA ≤ +85°C (typ ±100) 3
Output Rise Time TR 200 µs 10% VR to 90% VR, VIN = 0V to VR +1V, RL = 25Ω resistive 3
Input Voltage (absolute maximum) VIN 12 V 3
Output Current (peak) IOUT 500 mA 3
Output Voltage (absolute maximum) VOUT -0.3 0.3 V (GND, 0.3V) to (VIN + 0.3V) 3
Continuous Power Dissipation 3-Pin SOT-23A PD 150 mW 3-Pin SOT-23A 3
Specified Temperature Range (I) TA -40 85 °C 4
Storage Temperature Range TA -40 125 °C 4
Thermal Resistance, 3L-SOT-23A θJA 335 °C/W Minimum trace width single layer application 4
Thermal Resistance, 3L-SOT-23A θJA 230 °C/W Typical FR4, 4-layer application 4

CAD (KiCad official)

  • Symbol: MCP1701AT-3302I
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23A-3 (KiCad packages3D, STEP)
  • 3D model files: mcp1701at-3302i-etched.step / mcp1701at-3302i-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mcp1701at-3302i.step / mcp1701at-3302i.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (22 pp, sha256 6d053cb4d8e5ca07, retrieved 2026-10-23, 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