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PWM/PFM Dual Mode Step-up DC/DC Controller
AP1624
Features
- Input Voltage Range: 0.9~6V - PWM/PFM Switching Control - High Efficiency: 90% - Oscillator Frequency: 300kHz(±15%) - Stand-by Current: ISTB=3µA.(Typ.) - Pb-Free Package: SOT23-5
Applications
- Electronic Information Organizers - Palmtops - Cellular and portable phones - Portable Audio Systems - Various Multi-function Power Supplies
General Descriptions
The AP1624 is multi-functional step-up DC/DC controllers. Large output current is possible using an externally connected N channel MOSFET, coil, and diode.
Output voltage (VOUT)is programmable with 1.23V of standard voltage supply internal, and using externally connected components, output voltage (FB) can be set up at will.