RT3606BC
Pin No
Pin Name
Pin Function
Dr.MOS enable control. Connect to Dr.MOS PS4 function pin. After ACKing the PS4
command, this pin is floating. If the Dr. MOS needs active low to enter PS4 or use
discrete MOSFET, please reserve a 100k resistor to GND.
45
PS4_Dr
47
48
PWMA2
BOOTA1
PWM output for AXG rail VR channel 2.
Bootstrap supply for high-side gate MOSFET driver for AXG rail VR.
High-side drive outputs for AXG rail VR. Connect the pin to the gate of high-side
MOSFET.
49
UGATEA1
Switch node of high-side driver for AXG rail VR. Connect the pin to high-side
MOSFET source together with the low-side MOSFET drain and inductor.
50
51
PHASEA1
LGATEA1
PVCC
Low-side driver output for AXG rail VR. This pin drives the gate of low-side
MOSFET.
Driver power supply input. Connect this pin to GND by a minimum 2.2F ceramic
Capacitor.
52
Low-side driver output for CORE rail VR. This pin drives the gate of low-side
MOSFET.
57, 53
58, 54
LGATE[1:2]
PHASE[1:2]
Switch node of high-side driver for CORE rail VR. Connect the pin to high-side
MOSFET source together with the low-side MOSFET drain and inductor.
High-side drive outputs for CORE rail VR. Connect the pin to the gate of high-side
MOSFET.
59, 55
60, 56
UGATE[1:2]
BOOT[1:2]
GND
Bootstrap supply for high-side gate MOSFET driver for CORE rail VR.
61
Ground. The exposed pad must be soldered to a large PCB and connected to GND
for maximum power dissipation.
(Exposed Pad)
Copyright 2018 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS3606BC-07 August 2018
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4
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