Description
The RT8231A/B provides a complete power supply for DDR2/DDR3/DDR3L/LPDDR3/DDR4/LPDDR4 memory systems.
It integrates a synchronous PWM Buck controller with a 1.5A sink/source tracking linear regulator and buffered low noise reference.
Features
- PWM Controller Adjustable Current Limit with Low-Side RDS(ON) Sensing Low Quiescent Supply Current Quick Load-Step Response within 100ns 1% VVDDQ Accuracy Over Line and Load Adjustable 0.675V to 3.3V Output Range for 1.8V (DDR2), 1.5V (DDR3), 1.35V (DDR3L), 1.2V (LPDDR3), 1.2V (DDR4) and 1.1V (LPDDR4) 4.5V to 26V Battery Input Range Resistor Adjustable Frequency Over-/Under-Voltage Protection Internal Voltage Ramp Soft-Start Drives Large Synchronous Rectifier MOSFETs .
RT8231B Datasheet
