Parts MCP1700T-3302E/MB

MCHPMCP1700T-3302E/MB

Name: MCP1700T-3302E/MB
Brand: Microchip Technology

Microchip Technology

A low-dropout 3.3 V regulator commonly used in low-cost, low-current battery-powered designs.

Active151,894 in stock

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Overview

The MCP1700T-3302E/MB is a CMOS low dropout (LDO) voltage regulator that provides a fixed 3.3V output from an input voltage up to 6V. It is characterized by an extremely low quiescent current of 1.6uA, making it an ideal choice for extending battery life in portable applications. The device is stable with just 1.0uF of ceramic output capacitance and includes integrated overcurrent and overtemperature protection.

Why Choose This Part

The primary advantage is the ultra-low 1.6uA quiescent current, which significantly reduces standby power drain compared to standard regulators. Its low dropout voltage of 178mV at 250mA allows for maximum battery capacity utilization, while the AEC-Q100 qualification ensures high reliability in demanding environments.

Applications

Battery-Powered IoT Nodes

Provides a stable 3.3V rail for microcontrollers and sensors in devices that spend most of their time in sleep mode.

Portable Medical Devices

Used in handheld monitors and diagnostic tools where low power consumption and small SOT-89 footprint are critical.

Remote Sensors

Regulates power for low-duty-cycle wireless transmitters and environmental sensors powered by primary cell batteries.

Smoke and CO Detectors

Maintains high efficiency during long-term standby monitoring to meet multi-year battery life requirements.

Key Specifications

PSRR 44dB (100Hz)

Output Type Fixed

Mounting Type Surface Mount

Package / Case TO-243AA

Current - Output 250mA

Protection Features Over Current, Over Temperature, Short Circuit

Number of Regulators 1

Output Configuration Positive

Operating Temperature -40degC ~ 125degC

Voltage - Input (Max) 6V

Voltage Dropout (Max) 0.35V @ 250mA

Supplier Device Package SOT-89-3

Current - Quiescent (Iq) 4 uA

Voltage - Output (Min/Fixed) 3.3V

Getting Started

When designing with the MCP1700, place a 1.0uF ceramic capacitor close to the input and output pins for stability. Ensure the SOT-89 package thermal pad is adequately soldered to a copper plane to manage heat dissipation during high current loads. For prototyping, this regulator can be easily integrated into custom PCBs using standard EDA footprint libraries for the TO-243AA (SOT-89) package.

MCP1700 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number	Package	Output I	Voltage Dropout (Max)	Output V	Stock
MCP1700T-3302E/MB (this part)	TO-243AA	250mA	0.35V	3.3V	151,894
MCP1700T-3002E/TT	3-236	250mA	0.35V	3V	70,266
MCP1700T-1802E/TT	3-236	200mA	0.35V	1.8V	17,282
MCP1700T-3302E/TT	3-236	250mA	0.35V	3.3V	291,886
MCP1700T-5002E/TT	3-236	250mA	0.35V	5V	15,928
MCP1700-330	3-226	250mA	0.35V	3.3V	3,822