FEATURES
- Input Voltage Range: 2.5~6V - Output Voltage Range: 3.0~17V(±2.5%) - PWM/PFM Switching Control - Oscillator Frequency: 300KHz(±20%) - High Efficiency: 91%(Typ .) - Stand-by Current: ISTB=1µA.(Typ.) - Built-in internal N-Channel MOS - Pb-Free Package: SOP-8L/TSSOP-8L General Descriptions Large output current is possible having a built in internal N channel MOSFET, and using an external coil and diode. Output voltage is programmable with 1.23V of standard voltage supply internal, and using externally connected components, output voltage (FB) can be set up at will. During stand-by time ( CE pin “Low” ) , current consumption is reduced to 1µA. APPLICATIONS
- Electronic Information Organizers - Palmtops - Cellular and portable phones - Portable Audio Systems - Various Multi-function Power Supplies Pin Assignment Pin Descriptions Pin Pin No. DESCRIPTION
Name SOP TSSOP FB 3 5 Feedback pin Chip Enable: CE 1 4 H: Enable L: Disable Vcc 2 2、3 IC signal power supply pin PGND 4 6、7 Power MOSFET GND Switch Pin.