Rev 0.2 DIO6605B 5V Output, High-Efficiency 1.2MHz, Synchronous Step-Up Converter Features Descriptions High-Efficiency Synchronous-Mode The DIO6605B is a 5V output, high efficiency 2.7-4.5V input voltage range boost regulator targeted for general step-up Device Quiescent Current: 30A(TYP) applications. It can be used for generating 5V at Less than 1A Shutdown Current with 5V or 600mA from a 3.3V rail or a Li-ion battery. 0V output voltage High switching frequency minimizes the sizes of Output Voltage Fixed 5V inductor and capacitor. Integrated power Power-Save Mode for Improved Efficiency at MOSFETs and internal compensation make the Low Output Power DIO6605B simple to use and fit the total solution 1.8V Logic on EN Pin for Control into a compact space. Low Reverse Leakage Current when V >V For light load current, the DIO6605B enters into OUT IN Thermal shutdown the power-save mode to maintain high efficiency. Green package: DFN2*3-8 is pin compatible. Anti-ringing control circuitry reduces EMI -40C to +85C Operating Temperature Range concerns by damping the inductor in discontinuous mode. The DIO6605B provides true output disconnect and this allows V to go to OUT zero volts during shutdown without drawing any current from the input source. The DIO6605B supports 1.8V logic for control. Applications Typical Application Single Cell Li-Battery Powered Products Portable Audio Players 4.7H Output VOUT Cellular Phones SW Power Personal Medical Products Supply 10F VIN DIO6605B AGND 10F EN PGND Ordering Information Order Part Top Marking T Package A Number DIO6605BFN8 D6605 Green -40 to +85C DFN2*3-8 Tape & Reel, 3000 www.dioo.com 2015 DIOO MICROCIRCUITS CO., LTD DIO6605B V0.2 5V Output, High-Efficiency 1.2MHz, Synchronous Step Up Converter DIO6605B Pin Assignments 1 8 EN NC 2 7 VOUT AGND GND 6 3 NC PGND 5 4 VIN SW DFN2*3-8 Figure 1 Pin Assignment (Top View) Pin Definitions Pin Name Description EN Enable control. Pull high to turn on. Do not float. AGND Analog Ground. PGND Power Ground. Boost and Rectifying Switch Input. SW VIN Boost Converter Supply Voltage. VOUT Boost Converter Output. No Connect NC www.dioo.com 2015 DIOO MICROCIRCUITS CO., LTD DIO6605B V0.2