EC49509数据手册E-CMOS中文资料规格书

描述 Description

The EC49509 series of fixed output low dropout linear regulators are designed for portable   battery powered   applications, which require low power consumption, low noise environment, and low dropout voltage. Each device contains a bandgap voltage reference, an error amplifier, a PMOS power transistor, and resistors for setting output voltage, and current limit and temperature limit protection circuits.The EC49509 has been designed to be used with low cost capacitors and requires a   minimum output capacitor of 1.0μF. The output voltages range from 1.3VTo 4.4V in 100mV increments. Standard voltage versions are 1.5, 1.8, 2.5, 2.8, 3.0, and 3.3V.

特性 Features

▓Typical 200mV Dropout Voltage at 150mA
▓Fast Enable Turn-On Time of 20μs (Typ.)
▓Excellent Line and Load Regulation
▓High Accuracy Output Voltage of 2%
▓Ultra-Low Ground Current at 20μA (Typ.)
▓Disable Current Less than 0.1μA (Typ.)
▓Over Current and thermal Protection
▓No Reverse Current
▓Standard SOT-23-5L Package

应用 Application

▓USB removable devices
▓MPEG4 devices
▓Wireless LAN’s
▓Hand-Held Instrumentation
▓Portable DVD players
▓Digital camera