1/7

MA2003

Major Power Technology Co., Ltd.

Rev.1.0

Oct.11, 2014

1.2MHz, High Voltage, Boost Converter



GENERAL DESCRIPTION

The MA2003 is a current mode step up converter intended for small, low power applications.

The converter input voltage ranging from 2.6V to 5.5V. The Output voltage can be set up to

28V. The frequency is 1.2MHz allows the use of small external inductors and capacitors and

provides fast transient response. Internal soft start results in small inrush current and extends

battery life. Internal power MOSFET with very low RDS (ON) provides high efficiency. The

MA2003 automatically transits from PWM to PFM during light load condition further increasing

efficiency. The converter also provides protection functions such as under-voltage lockout,

current limit and thermal shutdown. The MA2003 is available in 5-pin SOT23 packages.



FEATURES

-

2.5V to 5.5V operating input voltage range

-

1.2MHz Fixed Switching Frequency

-

Adjustable output voltage range up to 28V

-

Internal 1.2A switching current limit

-

Internal Soft-start Function

-

Current limit and Thermal shutdown protection

-

Under voltage Lockout

-

Available in the 5-pin SOT23 Packages



APPLICATIONS

-

Cellular Phones

-

Digital Cameras

-

Tablet PC and Handheld Computers

-

PDA, DVD and GPS Receivers

-

Portable Instruments