L4902A集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF中文资料

L4902A属于集成电路（IC）的稳压器-DC-DC开关稳压器。由意法半导体集团制造生产的L4902A稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。

DESCRIPTION

The L4902A is a monolithic low drop dual 5V regulatordesignedmainly for supplying microprocessor systems.

Reset and data save functions and remote switch on/off control can be realized.

■ DOUBLE BATTERY OPERATING

■ OUTPUT CURRENTS : I01 = 300 mA I02 = 300 mA

■ FIXED PRECISION OUTPUT VOLTAGE 5 V ± 2

■ RESET FUNCTION CONTROLLED BY INPUT VOLTAGE AND OUTPUT 1 VOLTAGE

■ RESET FUNCTION EXTERNALLY PRO GRAMMABLE TIMING

■ RESET OUTPUT LEVEL RELATED TO OUT PUT 2

■ OUTPUT 2 INTERNALLY SWITCHED WITH ACTIVE DISCHARGING

■ OUTPUT 2 DISABLE LOGICAL INPUT

■ LOW LEAKAGE CURRENT, LESS THAN 1µA AT OUTPUT 1

■ RESET OUTPUT NORMALLY HIGH

■ INPUT OVERVOLTAGE PROTECTION UP TO 60V

■ OUTPUT TRANSISTORS SOA PROTECTION

■ SHORT CIRCUIT AND THERMAL OVERLOAD PROTECTION