MCP16252

Status: In Production

Low Quiescent Current Synchronous Boost Regulator

Data Sheet:

MCP16251/2 - Low Quiescent Current, PFM/PWM Synchronous Boost Regulator with True Output Disconnect or Input/Output Bypass Option

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Overview

Regulator Type:Step Up (Boost)
Switching Frequency (kHz) kHz (kilohertz):500
Input Voltage Range Min:0.82
Input Voltage Range Max:5.5
Output Current:250
Temp Range Min:-40
Temp Range Max °C (degrees Celsius):85
Vout Min (V):1.8
Vout Max (V):5.5
Quiescent Current (mA) typ:0.004
Light Load Efficiency Mode:Yes
Switch current (A) typ:0.65
Automotive Qualified:No
SHUTDOWN Current (µA) (Typ):0.6
Vfb V (volt):1.23
Synchronous Rectifier:Yes
Duty Cycle Max (%):91

Up to 96% Typical Efficiency
IOUT > 100 mA @ 1.2V VIN, 3.3V VOUT
IOUT > 250 mA @ 2.4V VIN, 3.3V VOUT
IOUT > 225 mA @ 3.3V VIN, 5.0V VOUT
Low Start-up Voltage: 0.82V
Operating Input Voltage: down to 0.35V
Adjustable Output Voltage Range: 1.8V to 5.5V
Maximum Input Voltage < VOUT < 5.5V
Automatic PFM/PWM Operation
PWM Operation at 500 kHz
Low Device Quiescent Current: <4 µA typical
Shutdown Current: 0.6 µA typical
Internal Synchronous Rectifier
Internal Compensation
Inrush Current Limiting and Internal Soft-Start
Input to Output Bypass Shutdown
True Load Disconnect Shutdown Option (MCP16251)
Anti-Ringing Control
Over-temperature Protection
SOT23-6 or 2x3 8-Lead TDFN packages

The MCP16251/2 is a compact, high-efficiency, fixed frequency, synchronous step-up DC-DC converter. This family of devices provides an easy-to-use power supply solution for applications powered by either one-cell, two-cell or three-cell alkaline, NiCd, NiMH and one-cell Li-Ion or Li-Polymer batteries.

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Title	Document Category	DS Number
MCP16251/2 - Low Quiescent Current, PFM/PWM Synchronous Boost Regulator with True Output Disconnect or Input/Output Bypass Option Data Sheets DS Number DS20005173	Data Sheets	DS20005173	Download	MCP16251/2 - Low Quiescent Current, PFM/PWM Synchronous Boost Regulator with True Output Disconnect or Input/Output Bypass Option
Very Low Input Voltage Boost Converter Guide Application Notes	Application Notes		Link Download	Very Low Input Voltage Boost Converter Guide
Improving Battery Run Time with Microchip's 4 µA Quiescent Current MCP16251/2 Boost Regulator Application Notes	Application Notes		Link Download	Improving Battery Run Time with Microchip's 4 µA Quiescent Current MCP16251/2 Boost Regulator
MCP16251 and MCP1640B Synchronous Boost Converters Evaluation Board User's Guide User Guide DS Number DS50002110	User Guide	DS50002110	Download	MCP16251 and MCP1640B Synchronous Boost Converters Evaluation Board User's Guide
MCP16251 One-Cell Boost Converter with External UVLO Circuit Reference Design User Guide	User Guide		Download	MCP16251 One-Cell Boost Converter with External UVLO Circuit Reference Design

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MPLAB Analog Designer Online power solutions, accelerated MPLAB Analog Designer (MAD) allows you to choose an existing solution or customize a suggested design. Schematics and component lists are included. View or modify your choice and, with one click, export the design files to MPLAB Mindi Analog Simulator for verification and analysis. Get Started

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