SiP12502

SiP12502 www.DataSheet4U.com New Product Vishay Siliconix 500 mA – Fixed Output Boost Converter for Single or Dual Cell FEATURES D Voltage Mode Control with Internal Frequency Compensation D 0.85 V to 5.0 V Input Voltage Range D Fixed Output Voltage Options –– 2.0 V, 3.3 V, and 5.0 V D Other Voltages available upon request D PWM Control with 300-kHz Fixed Switching Frequency D PFM Control for Light Load D Powered from the Output Voltage Supply D Integrated UVLO and Soft-Start D Logic Controlled Shutdown (t1 mA) D 85 % Typical Efficiency D Internal Power MOS Switch: 0.2 W at 3.3 V Output D Antiringing Switch to Minimize EMI D D D D D Power Good Output Shutdown Input Minimum External Components PowerPAKr MLP33-6 Package, (DFN–6, 3 x 3) Over Voltage Protection APPLICATIONS D D D D D D Portable Applications Battery–powered Equipment Handheld Devices Digital Cameras Wireless handsets LCD and OLED Bias DESCRIPTION SiP12502 is a boost converter IC with fixed output voltage for single or double cell NiMH or Alkaline battery pack. Featuring with an internal low resistance power MOSFET, it is capable of starting up with a low battery voltage of 0.85 V. It only needs four external components (an inductor, a diode and two capacitors) to construct a step–up converter. For best efficiency performance, it is designed to operate in PWM mode with a 300-kHZ switching frequency under normal load and in PFM mode under light load. The voltage–mode control loop is internally compensated, simpl...