APW8811
System Power PWM Controller for Notebook Computers
Features
• •
Wide Input Voltage Range from 6V to 25V Provide 4 Independent Outputs with ±1.
5% Accuracy Over-Temperature - PWM1 Controller with Adjustable (2V to 5.
5V) Output - PWM2 Controller with Adjustable (2V to 5.
5V) Output - 100mA Low Dropout
Regulator (LDO5) with Fixed 5V Output - 100mA Low Dropout
Regulator (LDO3) with Fixed 3.
3V Output
Simplified Application Circuit
VIN 6V~28V VLDO 5 VOUT1 Q1 L1 Q2 PWM1 PWM2 EN LDO LDO5 EN PWM LDO3 VLDO 3 Q3 L2 Q4 VOUT2
General Description
The APW8811 integrates dual step-down, constant-ontime, synchronous PWM controllers (that drives dual Nchannel MOSFETs for each channel) and two low dro...