概述Description

ET5A0XX series are the fixed output 1A LDO with auto discharge function, It uses an advanced CMOS process and a PMOSFET pass device to achieve high power supply rejection ratio (PSRR) ,low noise, very low dropout, fast start-up and excellent output accuracy.

ET5A0XX series are stable with a 1.0～10μF ceramic output capacitor, uses a precision voltage reference and feedback loop to achieve excellent Regulation and transient response. It can choose the output current between 500mA and 1A by setting the LCON pin to high or low (only some package have this function).

ET5A0XX series are offered SOT23-5, SOT89-5,SOT-223, DNF6(2×2), DNF8(1.2×1.6),HSOP8 packages

特性Feature

⚫ Wide input voltage range from 1.8V to 5.5V

⚫ Output current 500mA/1A optional

⚫ Output Voltage is 1.2V 1.75V 1.8V 2.8V 3.0V 3.3V ADJ(0.75V to 4.3V) etc

⚫ Low IQ is typical 110μA

⚫ Excellent load/line transient response

⚫ Low dropout voltage is 135mV@1A/3.3V output current

⚫ Built-in over-current protection and thermal shutdown circuit

⚫ Built-in inrush current suppression circuit and current limit circuit

⚫ Reverse current protection

应用Application

⚫ Constant-voltage power supply for battery-powered device

⚫ Constant-voltage power supply for TV, notebook PC and home electric appliance

⚫ Constant-voltage power supply for portable equipment

⚫ Label Information

应用图Application Circuit

框图Block Diagram

封装Footprint