MCP16251 Series

Low Quiescent Current Synchronous Boost Converter

Catalog

Low Quiescent Current Synchronous Boost Converter

Part	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case	Voltage - Input (Max) [Max]	Current - Output	Topology	Output Type	Synchronous Rectifier	Number of Outputs	Frequency - Switching	Supplier Device Package	Function	Voltage - Input (Min) [Min]	Output Configuration	Mounting Type	Voltage - Output (Max) [Max]	Voltage - Output (Min/Fixed)
Microchip Technology MCP16251T-I/CH	-40 °C	85 °C	SOT-23-6	5.5 V	100 mA	Boost	Adjustable		1	500 kHz	SOT-23-6	Step-Up	0.82 V	Positive	Surface Mount	5.5 V	1.8 V

Catalog

Low Quiescent Current Synchronous Boost Converter

Key Features

• * 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

• * True Load Disconnect Shutdown

• * Input to Output Bypass Shutdown Option (MCP16252)

• * Anti-Ringing Control

• * Over-temperature Protection

• * SOT23-6 or 2x3 8-Lead TDFN packages

Description

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.