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 nVidia OVR4i+ spec with PWM-VID interface. The RT8848A/B adopts AC G-NAVPTM (Green Native AVP) which is Richtek's proprietary topology derived from finite DC gain of internal GM amplifier with current mode cont.
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 also provides complete fault protection functions including over-voltage protection (OVP), under-voltage protection (UVP), channel over-current limit (CH_OC), sum output current protection (SOC) and over-temperature protection (OTP).
Features
Multi-Phase PWM Controller
PWM-VID Dynamic Voltage Co.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | RT8848B |
Richtek |
Multi-Phase PWM Controller | |
2 | RT8848C |
Richtek |
Multi-Phase PWM Controller | |
3 | RT8848D |
Richtek |
Multi-Phase PWM Controller | |
4 | RT8841 |
Richtek Technology |
4/3/2/1-Phase PWM Controller | |
5 | RT8845A |
Richtek |
Multi-Phase PWM Controller | |
6 | RT8845B |
Richtek |
Multi-Phase PWM Controller | |
7 | RT88 |
LRC |
AUTOMOTIVE BRIDGE RECTIFIERS | |
8 | RT8800 |
Richtek Technology |
General Purpose 2/3-Phase PWM Controller | |
9 | RT8800A |
Richtek Technology |
General Purpose 3-Phase PWM Controller | |
10 | RT8800B |
Richtek Technology |
General Purpose 2/3-Phase PWM Controller | |
11 | RT8801 |
Richtek Technology |
Multi-Phase PWM Controller | |
12 | RT8801B |
Richtek Technology |
Multi-Phase PWM Controller |