防护 
电源 
信号链 
驱动 
车规 ET5914
General Description
The ET5914 is a 4 channels CMOS-based low-dropout, low-power high performance linear regulator with I2C control. LDO1 offering 1000mA with NMOS pass transistor, LDO2, LDO3 and LDO4 offering 300mA with PMOS pass transistor. ET5914 include 1MHz high speed I2C interface, the function setting is flexible such as working mode, power sequence, output voltage, output discharge, current limit per channel. The chip enable control support EN pin control and I2C control.
Each LDO of ET5914 can be set to load switch mode. LDO1 can be set as 1.2V to 3.3V load switch, LDO2/3/4 can be set as 1.5 to 5.5V load switch.
The ET5914 is available in small Package: WLCSP-16 1.44mm×1.38mm
Features
LDO1 input voltage range: 1.0V to 2.0V output voltage range: 0.798V to 1.8V with step 6mV
LDO2/3/4 input voltage range: 1.9V to 5V output voltage range: 1.8V to 4.35V with step 10mV
VSYS input voltage range: 2.7V to 5.5V
LDO1 output current:1000mA Max
LDO2/3/4 output current:300mA Max
LDO1 ultra Low dropout: Typ.70mV at 800mA, 1.2V Output
LDO2/3/4 ultra Low dropout: Typ. 90mV at 300mA, 1.8V Output
Very Low VSYS quiescent current of Typ. 80µA
Built-in over-current protection and thermal shutdown circuit
Built-in Auto-discharging circuit (optional)
Built-in input under voltage lock-out
Built-in output over voltage protection and under voltage protection
Each LDO of ET5914 can be set to load switch mode.
I2C serial control to program output voltage and features
Part No. and Package:
Applications
Constant-voltage power supply for battery-powered device
Constant-voltage power supply for smartphones, tablets
Constant-voltage power supply for cameras, DVRs, STB and camcorders
Pin Configuration
Block Diagram
Application Circuits
