AP2952A

AP2952A Description The AP2952A is a monolithic synchronous buck regulator. The device integrates 130mΩ MOSFETS that provide 2A continuous load current over a wide operating input voltage of 4.75V to 18V. Current mode control provides fast transient response and cycle-by-cycle current limit. An adjustable soft-start prevents inrush current at turn-on. In shutdown mode, the supply current drops below 1μA. This device, available in an 8-pin SOP package, provides a very compact system solution with minimal reliance on external components. Applications  Distributed Power Systems  Networking Systems  FPGA, DSP, ASIC Power Supplies  Green Electronics/ Appliances  Notebook Computers Chipown 2A, 18V Synchronous Rectified Step-Down Converter Features  2A Output Current  Wide 4.75V to 18V Operating Input Range  Integrated 130mΩ Power MOSFET Switches  Output Adjustable from 0.925V to 15V  Up to 95% Efficiency  Programmable Soft-Start  Fixed 450KHz Frequency  Cycle-by-Cycle Over Current Protection  Input Under Voltage Lockout  Thermally Enhanced 8-Pin SOP Package Package Typical Application Circuit Figure 1. Typical Application Circuit Efficy(%) 100 90 80 70 60 50 40 30 20 10 0 0 Vout=5V Vin=9V Vin=12V Vin=18V 400 800 1200 1600 2000 Load(mA) Figure 2. Typical Efficiency Curve 8/F, ChuangYuan Building No.21-1 Changjiang Road, Wuxi New Destrict Tel: +86(510)8521-7718 http://www.chipown.com.cn V2.0 1/9 AP2952A Chipown Absolute Maximum Ratings(1) Supply Voltage (VI...