Complete DDRII/DDRIII/Low-Power DDRIII/DDRIV Memory Power Supply Controller
- Resistor Programmable Current Limit by Low-Side RDS(ON) Sense
- Quick Load-Step Response within 100ns
- 1% VOUT Accuracy Over Line and Load
- Fixed 1.8V (DDRII), 1.5V (DDRIII) or Adjustable 0.75V to 3.3V Output Range
- Battery Input Range 4.5V to 26V
- Resistor Programmable Frequency
- Over/Under Voltage Protection
- Drives Large Synchronous-Rectifier FETs
- Power-Good Indicator
1.5A LDO (VTT), Buffered Reference (VTTREF)
- Capable to Sink and Source Up to 1.5A
- External Input Available to Minimize Power Losses
- Integrated Divider Tracks 1/2 VDDQ for Both VTT and VTTREF
- Buffered Low Noise 10mA VTTREF Output
- Remote Sensing (VTTSNS)
- ± 20mV Accuracy for Both VTTREF and VTT
- Supports High-Z in S3 and Soft-Off in S4/S5
- QFN-20 package