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