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MCP1703-3302E
Public Made by Adomby adom
Microchip Tech Linear Voltage Regulators (LDO), SOT-223-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownMCP1703-3302E
Microchip Tech · Linear Voltage Regulators (LDO) · SOT-223-3
MCP1703-3302E from Microchip Tech, in a SOT-223-3. 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 | VIN | power_in | Unregulated supply input accepting 2.7V to 16.0V, needing low source impedance and about 1 µF of input capacitance for stable operation. |
| 2 | GND | power_in | Regulator ground (the tab is also GND), carrying only the 2.0 µA typical bias current and serving as the output regulation reference. |
| 3 | VOUT | power_out | Regulated output delivering up to 250 mA, connected to the load and an output capacitor of 1.0 µF to 22 µF placed close to the pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOT-223-3 |
| 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_mA | 250 | mA | For VR ≥ 2.5V | 3 | ||
| Output Voltage Regulation | VOUT | -2 | 0.4 | 2 | % | VR-2.0% to VR+2.0%, typ VR±0.4%, Note 2 | 3 |
| Line Regulation | ΔVOUT/(VOUTXΔVIN) | -0.3 | 0.1 | 0.3 | %/V | (VOUT(MAX) + VDROPOUT(MAX)) ≤ VIN ≤ 16V, Note 1 | 3 |
| Load Regulation | ΔVOUT/VOUT | -2.5 | 1 | 2.5 | % | IL = 1.0 mA to 250 mA for VR >= 2.5V, VIN = 3.65V, Note 4 | 3 |
| Dropout Voltage | VDROPOUT | 525 | 725 | mV | IL = 250 mA, 3.3V ≤ VR < 5.0V | 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 | ||
| 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 | All pins, HBM | 3 | |||
| ESD protection MM | 400 | V | All pins, MM | 3 | |||
| Output Short Circuit Current | IOUT_SC | 400 | mA | VIN = VIN(MIN) (Note 1), VOUT = GND, Current (average current) measured 10 ms after short is applied. | 3 | ||
| VOUT Temperature Coefficient | TCVOUT | 50 | ppm/°C | Note 3 | 3 | ||
| Output Delay Time | TDELAY | 1000 | µs | VIN = 0V to 6V, VOUT = 90% VR, RL = 50Ω resistive | 4 | ||
| Output Noise | eN | 8 | µV/(Hz)1/2 | IL = 50 mA, f = 1 kHz, COUT = 1 µF | 4 | ||
| Power Supply Ripple Rejection Ratio | PSRR | 44 | dB | f = 100 Hz, COUT = 1 µF, IL = 100 µA, VINAC = 100 mV pk-pk, CIN = 0 µF, VR = 1.2V | 4 | ||
| Thermal Shutdown Protection | TSD | 150 | °C | 4 | |||
| Thermal Resistance, junction to ambient, 3LD SOT-223 | θJA | 62 | °C/W | EIA/JEDEC JESD51-7 FR-4 0.063 4-Layer Board | 4 | ||
| Thermal Resistance, junction to case, 3LD SOT-223 | θJC | 15 | °C/W | EIA/JEDEC JESD51-7 FR-4 0.063 4-Layer Board | 4 |
CAD (KiCad official)
- Symbol:
MCP1703-3302E - Footprint:
Package_TO_SOT_SMD:SOT-223-3_TabPin2 - 3D model: SOT-223-3 (KiCad packages3D, STEP)
- 3D model files:
mcp1703-3302e-etched.step/mcp1703-3302e-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mcp1703-3302e.step/mcp1703-3302e.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (32 pp, sha256
7bfdaa05d529bf00, retrieved 2026-10-24, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).