APW7102茂達電子高效能PWM同步降壓穩壓IC，APW7102整合同步切換開關，具備更高效能并節省電路板空間，固定1.3MHz的開關切換頻率，APW7102可以在設計時使用較小型濾波組件，非常適合輕薄小巧的便攜設備。 當輸出負載過大時，APW7102內部的限流電路及與過熱保護機制啟動以保護系統，APW7102電流回授模式的架構提供快速的輸入電壓及負載瞬時響應。APW7102可提供800mA 的負載電流，操作電壓為2.5V~5.5V，操作溫度為–40°C~125°C。

The APW7102 is a high efficiency monolithic synchronous buck regulator. APW7102 operates with a constant 1.3MHz switching frequency and uses the inductor current  as  a  control led  quanti ty  in  the  current mode architecture. The 2.5V to 5.5V input voltage range makes the APW7102 ideally suited for single Li-Ion battery powered applications.100% duty cycle provides low dropout operation, extending battery  life  in portable electrical devices. The internally fixed 1.3MHz operating frequency allows  the use of small surface mount  inductors and capacitors. The  integrated synchronous switches  increase the efficiency and eliminate the need for an external Schottky diode. Low output voltages are easily supported with  the 0.6V  feedback reference voltage. The APW7102 is available in a low profile TSOT package for saving the printed circuit board area.

APW7102特性
· APW7102 800mA Output Current
· APW7102 2.5V to 5.5V Input Voltage Range
· APW7102 1.3MHz Constant Frequency Operation
· APW7102 Low Dropout Operation at 100% Duty Cycle
· APW7102 Synchronous Topology:No Schottky Diode Required
· APW7102 0.6V Low Reference Voltage
· APW7102 Shutdown Mode Supply Current Under 1mA
· APW7102 Current Mode Operation for Excellent Line and Load Transient Response
· APW7102 Over-Temperature Protection
· APW7102 Over Current Protection
· TSOT-23-5 Package
· Lead Free and Green Devices Available
         (RoHS Compliant)

APW7102應用
· Cellular Telephones
· Personal Information Appliances
· Wireless and DSL Modems
· MP3 Players
· Digital Still Cameras
· Portable Instruments