MCP16252 Boost Regulator

The MCP16252 is a compact, high-efficiency, fixed frequency, synchronous step-up DC-DC converter IC. This IC provides an easy-to-use power supply solution for applications powered by either one-cell, two-cell or three-cell alkaline, NiCd, NiMH, one-cell Li-Ion or Li-Polymer batteries.

 

Pin Configuration of MCP16252

Pin Number	Pin Name	Description
1	VFB	Feedback Voltage Pin
2	SGND	Signal Ground Pin
3	PGND	Power Ground Pin
4	EN	Enable Control Input Pin
5	SW	Switch Node, Boost Inductor Input Pin
6	VOUTP	Output Voltage Power Pin
7	VOUTS	Output Voltage Sense Pin
8	VIN	Input Voltage Pin

 

Features & Specifications of MCP16252

• Number of Outputs: 1 Output
• Input Voltage Range: 0.82V to 5.5V
• Output Voltage: 1.8V to 5.5V
• Current – Output: 100mA
• Frequency – Switching: 500kHz
• Load Regulation: 1.5 %
• Shutdown Current: 0.6 µA typical
• Feedback Voltage: 1.23V
• Available in SOT-23, 6-Lead- TDFN, 2 x 3 x 0.8 mm, 8-Lead

 

Note: Complete Technical Details can be found at the MCP16252 datasheet given at the end of this page.

 

MCP16252 Equivalent

ACT4514, CS51411, TS2580

 

Alternative DC-DC Controllers

MC34063A, LM2596, TC7660

 

Where to use MCP16252 

The MCP16252 is a synchronous step-up DC-DC converter IC, which is normally used in One, Two and Three-Cell Alkaline and NiMH/NiCd Portable Products.  Since the regulation occurs through switching it is very efficient than linear circuits. The internal oscillator supports the switching frequencies from 425 kHz to 575 kHz.

The input voltage for the IC is from 0.82V to 5.5V and the output voltage can be varied from 1.8V to 5.5V and the maximum output current can be up to 100mA. So if you looking to design a DC-DC converter with the above specifications then MCP16252 might be of interest to you.

 

How to use MCP16252

This IC requires a minimum number of components to be operational. A test circuit diagram from the MCP16252 datasheet is given below.  As shown in the circuit diagram output voltage is set by a small external resistor divider. V_IN pin is connected to the input voltage source. The input source should be decoupled to GND with a 4.7 µF minimum capacitor. The V_FB pin is used to provide output voltage regulation by using a resistor divider

 

 

Applications of MCP16252

• One, Two and Three-Cell Alkaline and NiMH/NiCd
• Portable Products
• Solar Cell Applications
• Personal Care and Medical Products
• Bias for Status LEDs
• Smartphones, MP3 Players, Digital Cameras
• Remote Controllers, Portable Instruments
• Wireless Sensors
• Bluetooth Headsets
• +3.3V to +5.0V Distributed Power Supply

 

2D Model of MCP16252

Dimensions for MCP16252IC are given below. These dimensions are for the SOIC package. If you are using different package IC please refer to the MCP16252 datasheet.