uP1642P
3-Phase Synchronous-Rectified Buck Controller
for Mobile GPU Power
18 BOOT2Confidential
17 UGATE2 16 PGOOD 15...
uP1642P
3-Phase Synchronous-Rectified Buck Controller
for Mobile GPU Power
18 BOOT2Confidential
17 UGATE2 16 PGOOD 15 DSBL/ISEN1 14 TALERT#/ISEN2 13 TSNS/ISEN3
General Description
Features
The uP1642P is a 3/2/1-phase synchronous-rectified buck Support NVIDIA’s Open VReg Type-2 and 2+1
controller specifically designed to work with 4.5V ~ 26V
PWMVID Technology
input
voltage and deliver high quality output
voltage for highperformance graphic processor power.
Wide Input
Voltage Range 4.5V ~ 26V
The uP1642P adopts proprietary RCOTTM technology, Robust Constant On-Time Control
providing flexible selection of output LC filter and excellent 3/2/1 Phase Operation
transient response to load and line change.
Two Integrated
MOSFET Drivers with Shoot-
The uP1642P supports NVIDIA Open
Voltage Regulator-2
Through Protection and Internal Bootstrap
and 2+1 with PWMVID feature. The PWMVID input is
Switch
buffered and filtered to generate accurate reference
voltage,
...
