AP2952
Description
The AP2952 is a monolithic synchronous buck regulator. The device integrates 130mΩ MOSFETS that provi...
AP2952
Description
The AP2952 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
8
27
36
45
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
AP2952
Chipown
Absolute Maximum Ratings(1)
Supply Vol...