Description
RT8848A/B Multi-Phase PWM Controller with PWM-VID Reference General .
The RT8848A/B is a 8/7/6/5/4/3/2/1 multi-phase synchronous Buck controller which is optimized for high performance graphic microprocessor and support.
Features
* external reference input and PWM-VID dynamic output voltage control, in which the output voltage is regulated and tracks external input reference voltage. The RT8848A/B can set internal RAMP amplitude through PINSETx pin and this can optimize stability and load transient performance. The RT8848A/B a
Applications
* GPU Core Power for OVR4i+ Spec
Simplified Application Circuit
5V VIN
VCC VCC
RT8848A/B
VCC
PWM1
VIN PGOOD
ISEN1
EN
PWM2
ISEN2 PSI
IMON
CH_OC
PWMVID SDA
SCL
TSEN REFIN
PINSET1
PWM8 ISEN8
PINSET2 GND
VSEN FBRTN
DrMOS
PWM
VIN
VIN
IMON
VSW
DrMOS
PWM
VIN
VIN
IMON
VSW