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RT8207
RT8207
RT8207 Complete DDRII/DDRIII Memory Power Supply Controller:
- Fixed 1.8V (DDRII), 1.5V (DDRIII) or Adjustable 0.75V to 3.3V Output Range
- Battery Input Range 2.5V to 26V
Product Description
Description:
- The RT8207 provides a complete power supply for both DDRII/DDRIII memory systems. It integrates a synchronous PWM buck controller with a 3A sink/source tracking linear regulator and a buffered low noise reference.
- The PWM controller provides the high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high-voltage batteries to generate low voltage chipset RAM supplies in notebook computers.
- TECHNICAL SHEET: https://pdf1.alldatasheet.com/datasheet-pdf/view/505438/RICHTEK/RT8207.html
Features:
- PWM 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 2.5V to 26V
- Resistor Programmable Frequency
- Over/Under Voltage Protection
- 4 Steps Current Limit During Soft-Start
- Drives Large Synchronous-Rectifier FETs
- Power-Good Indicator
- 3A LDO (VTT), Buffered Reference (VTTREF)
- Capable to Sink and Source Up to 3A
- LDO Input Available to Optimize Power Losses
- Requires Only 20μF Ceramic Output Capacitor
- Buffered Low Noise 10mA VTTREF Output
- Accuracy ± 20mV for Both VTTREF and VTT
- Supports High-Z in S3 and Soft-Off in S4/S5
- RoHS Compliant and Halogen Free
Applications:
- DDRII/DDRIII Memory Power Supplies
- Notebook Computers
- SSTL18, SSTL15 and HSTL Bus Termination
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