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MCP1703AT-5002E

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Microchip Tech Linear Voltage Regulators (LDO), SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MCP1703AT-5002E

Microchip Tech · Linear Voltage Regulators (LDO) · SOT-89-3

MCP1703AT-5002E from Microchip Tech, in a SOT-89-3. 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, with only the LDO bias current (2.0 µA typical) flowing out of this pin.
2 VIN power_in Unregulated supply input (2.7V to 16.0V operating range), also connected to the package tab; 1 µF of input capacitance ensures stable operation for most applications.
3 VOUT power_out Regulated output voltage (5.0V for this -5002 option) delivering up to 250 mA; connect to the load and the output capacitor (1.0 µF to 22 µF ceramic).

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOT-89-3
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
Input Operating Voltage VIN 2.7 16 V Note 1 3
Input Quiescent Current Iq 2 5 µA IL = 0 mA 3
Maximum Output Current IOUT 250 mA For VR ≥ 2.5V 3
Output Voltage Regulation VOUT -2 2 % Note 2; typ VR±0.4% 3
Line Regulation ΔVOUT/(VOUT×ΔVIN) -0.3 0.1 0.3 %/V (VOUT(MAX) + VDROPOUT(MAX)) ≤ VIN ≤ 16V, Note 1; typ printed ±0.1 3
Load Regulation ΔVOUT/VOUT -2.5 1 2.5 % IL = 1.0 mA to 250 mA for VR ≥ 2.5V; typ printed ±1.0 3
Dropout Voltage VDROPOUT 330 650 mV IL = 250 mA, VR = 5.0V, Note 1, Note 5 4
Operating Junction Temperature Range TJ -40 125 °C Steady State 4
Maximum Junction Temperature (transient) TJ 150 °C Transient 4
Storage Temperature Range TA -65 150 °C 4
Maximum Supply Voltage VDD 18 V 3
Input/Output Pin Voltage -0.3 0.3 V All inputs and outputs w.r.t. (VSS-0.3V) to (VIN+0.3V); max is VIN+0.3V 3
Maximum Junction Temperature 150 °C 3
ESD protection HBM 4 kV HBM, all pins (≥ 4 kV) 3
ESD protection MM 400 V MM, all pins (≥ 400V) 3
Output Short Circuit Current IOUT_SC 400 mA VIN = VIN(MIN) (Note 1), VOUT = GND, average current measured 10 ms after short is applied 3
VOUT Temperature Coefficient TCVOUT 65 ppm/°C Note 3 3
Output Delay Time TDELAY 600 µs VIN = 0V to 6V, VOUT = 90% VR, RL = 50Ω resistive 4
Output Noise eN 1 µV/(Hz)1/2 IL = 50 mA, f = 1 kHz, COUT = 1 µF 4
Power Supply Ripple Rejection Ratio PSRR 35 dB f = 100 Hz, COUT = 1 µF, IL = 10 mA, VINAC = 200 mV pk-pk, CIN = 0 µF, VR = 5.0V 4
Thermal Shutdown Protection TSD 150 °C 4
Thermal Resistance, 3LD SOT-89 junction to ambient θJA 180 °C/W EIA/JEDEC JESD51-7, FR-4 0.063 4-Layer Board 4
Thermal Resistance, 3LD SOT-89 junction to case θJC 52 °C/W EIA/JEDEC JESD51-7, FR-4 0.063 4-Layer Board 4

CAD (KiCad official)

  • Symbol: MCP1703AT-5002E
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: mcp1703at-5002e-etched.step / mcp1703at-5002e-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mcp1703at-5002e.step / mcp1703at-5002e.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (31 pp, sha256 ee4e9c3b0b2c09bb, retrieved 2026-10-23, tier: manufacturer)
  • 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