APE1501同步降压DC/DC，600mA输出电流
The APE1501 is a high efficiency monolithic synchronous buck regulator using a 1.5MHz constant frequency, current mode architecture. The APE1501 is available in an adjustable version. Supply current with no load is 300µA and drops to <1µA in shutdown. The 2.5V to 5.5V input voltage range makes the APE1501 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation,
Switching frequency is internally set at 1.5MHz, allowing the use of small surface mount inductors and capacitors. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with the 0.6V feedback reference voltage. The APE1501 can supply 600mA of load current at VCC=3V. The APE1501 is available in a low profile 5-pin, SOT package.

APE1501技术特性
-  2.5V to 5.5V Input Voltage Range
-  High Efficiency: Up to 96%
-  1.5MHz Constant Frequency Operation
-  600mA Output Current at VCC=3V
-  No Schottky Diode Required  
-  Low Dropout Operation: 100% Duty Cycle
-  0.6V Reference Allows Low Output Voltages
-  Current Mode Operation for Excellent Line and
-  Current limit, Enable function
-  Short Circuit Protect (SCP)
-  Low Quiescent Current: 300µA
-  ≤ 1µA Shutdown Current
-  5-pin, SOT-23 Pb-Free package