RT3662EB
Ordering Information
RT3662EB
Package Type
QW : WQFN-32L 4x4 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
Richtek products are :
Pin Configuration
(TOP VIEW)
EN
BOOT2
UGATE2
PHASE2
LGATE2
PVCC
LGATE1
PHASE1
32 31 30 29 28 27 26 25
RoHS compliant and compatible with the current
requirements of IPC/JEDEC J-STD-020.
VIN
RGND
COMP
FB
ISEN2P
ISEN2N
ISEN1P
ISEN1N
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16
24
23
22
21
20
33
19
18
17
GND
UGATE1
BOOT1
NC
VSEN
PGOOD
VDDIO
SVT
SVD
Functional Pin Description
Pin No.
1
2
3
4
5
6
7
8
9
Pin Name
VIN
RGND
COMP
FB
ISEN2P
ISEN2N
ISEN1P
ISEN1N
VRHOT_L
Pin Function
VIN input. Connect a low pass filter to this pin.
Return ground of VDDC controller. This pin is the common negative input of
output voltage differential remote sense of VDDC controller.
Error amplifier output pin of the VDDC controller.
Output voltage feedback input of VDDC controller. This pin is the negative
input of the error amplifier for the VDDC controller.
Positive current sense input of channel 2 for VDDC controller.
Negative current sense input of channel 2 for VDDC controller.
Positive current sense input of Channel 1 for VDDC controller.
Negative current sense input of channel 1 for VDDC controller.
Thermal indicator. This pin is an open drain output. (Active low)
This pin provides two functions: platform setting, platform can use this pin to
set frequency, initial offset and per-phase OCP threshold of VDDC
Controller. The other function is thermal sense input for VRHOT indicator, so
this pin must to be connected to the NTC network for thermal sense.
Platform setting pin. Platform can use this pin to set AI gain, QRTH of VDDC
Controller.
Current monitor output for the VDDC controller. This pin outputs a voltage
proportional to the output current.
10
TSEN
11
12
SET1
IMON
13
This pin provides two functions : the 3.2V power supply for pin setting
function divided resistors. The other function is fixed 0.8V output reference
VREF_PINSET voltage, and the voltage is only used to offset the output voltage of IMON
pin. Connect a RC circuit from this pin to GND. The recommended resistor
is from 3.9 to 10, and the capacitor is 0.47F.
Copyright © 2019 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
2
VRHOT_L
TSEN
SET1
IMON
VREF_PINSET
VCC
PWROK
SVC
Suitable for use in SnPb or Pb-free soldering processes.
WQFN-32L 4x4
DS3662EB-04
August 2019
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
