MCP1700
250mA LDO with 1.6μA quiescent current, low dropout, and SOT-23 package for space-constrained battery applications.
Product Overview
Description
The MCP1700 is an ultra-low quiescent current LDO regulator delivering 250mA output with just 1.6μA ground current. It's designed specifically for extended battery life in portable applications.
The device features low dropout voltage of 350mV at 250mA and is stable with ceramic output capacitors. Fixed output voltages from 1.2V to 5.0V are available.
The small SOT-23 package minimizes board space while the wide operating temperature range supports industrial applications.
Product Series
MCP
Primary Application
Battery-powered devices
Key Features
- Ultra-low 1.6μA quiescent current
- Low dropout voltage
- Stable with ceramic caps
- Current limiting protection
- Thermal shutdown
- Small SOT-23 package
Specifications
| Output Current | 250mA max |
|---|---|
| Quiescent Current | 1.6μA typical |
| Dropout Voltage | 350mV @ 250mA |
| Input Voltage | 2.3V - 6.0V |
| Output Voltage | 1.2V - 5.0V (fixed) |
| PSRR | 44dB @ 1kHz |
| Package | SOT-23-3, TO-92 |
| Temperature Range | -40°C to +125°C |
| Architecture | CMOS LDO |
Applications
Battery-powered devices
Battery and charging management
Portable electronics
Electronic system design
Wireless sensors
Sensor signal conditioning
Wearable devices
Electronic system design
IoT endpoints
Electronic system design
FAE Expert Insights
"The MCP1700 is the lowest quiescent current LDO in Microchip's portfolio at just 1.6μA. It's my first choice for coin cell powered devices where battery life is critical. The SOT-23 package is tiny and the dropout voltage is reasonable for most battery applications. For 3V to 1.8V regulation from a coin cell, this is perfect."
Lowest 1.6μA quiescent current for maximum battery life
— Lisa Wang, BeiLuo
Frequently Asked Questions
What is the difference between MCP1700 and MCP1703?
The MCP1700 has lower quiescent current (1.6μA vs 2.0μA) and lower dropout voltage (350mV vs 625mV at 250mA), but lower PSRR (44dB vs 70dB). The MCP1700 has lower maximum input voltage (6V vs 13.2V). Choose MCP1700 for maximum battery life; choose MCP1703 for better PSRR or higher input voltage.
Use MCP1700 for lowest power; use MCP1703 for better noise rejection or higher input voltage.