The KF9109 is a current mode boost DC-DC converter. Its PWM circuitry with built-in 0.20 power MOSFET make this regulator highly power efficient. The internal compensation network also minimizes as much as 6 external component counts. The non-inverting input of error amplifier connects to a 0.6V precision reference voltage and internal soft-start function can reduce the inrush current.

The KF9109 is available in the SOT23-6L package and provides space-saving PCB for the application fields.

   Features

Adjustable Output up to 12V

Internal Fixed PWM frequency: 1 .0MHz

Precision Feedback Reference Voltage: 0.6V (+2%)

Internal 0.20, 2A, 16V Power MOSFET

Shutdown Current: 0. 1μA

Over Temperature Protection

Adjustable Over Current Protection: 0.5A~ 2.5A

Package: SOT23-6L

    Application

Chargers

LCD Displays

Digital Cameras

Handheld Devices

Portable Products