ET540XX中文资料LDO数据手册ETEK规格书

描述 Description

The ET540XXYB Series are low voltage 400mA voltage regulator. The input voltage is as low as Min. 1.1V and the output voltage can be set from 0.7V. The output voltage accuracy has been improved to ±0.8% and due to a built-in transistor with low on-resistance. Each of these ICs consists of a voltage reference unit, an error amplifier, a resistor-net for voltage setting, and a current limit circuits for over-current for the destruction prevention by the over-current.

The ET540XXYB series use a type of outstanding CMOS process to minimize the supply current. A low on-resistance PMOS pass device is equipped for lower dropout voltage. ET540XXYB also possess the CE function to save more energy and extend the battery life. The CE pin can switch the regulator to standby mode.The ET540XXYB series are available in the DFN1.2*1.2-6 package.

特性 Features

● Wide Input Voltage Range: 1.1V to 5V

● Very Low IQ: 48μA

● Max Output Current: 400mA

● Output Voltage Range: 0.7V to 3.8V

● Output Voltage Accuracy: ±0.8% (VOUT ≥1.0V, Ta =25°C)

● Dropout Voltage : Typ. 0.22V (V OUT =1.5V)

● Excellent Load/Line Transient Response, Line Regulation: 0.1%/V (typical)

● Built-in Fold Back Protection Circuit

● Built-in Constant Slope Circuit

● Built-in Auto-discharging circuit

● Package: DFN1.2*1.2-6