AP2952A - Chipown

AP2952A 18V Synchronous Rectified Step-Down Converter

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 supp.

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, W.