RT3667BL
Ordering Information
RT3667BL
Package Type
QW : WQFN-52L 6x6 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
Richtek products are :
�½
Pin Configuration
(TOP VIEW)
PWM3
BOOT2
UGATE2
PHASE2
LGATE2
PVCC
LGATE1
PHASE1
UGATE1
BOOT1
PWMA1
PWMA2
TONSETA
52 51 50 49 48 47 46 45 44 43 42 41 40
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
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Marking Information
RT3667BLGQW : Product Number
Functional Pin Description
Pin No.
1, 52
2
5, 4, 8, 9
6, 3, 7, 10
11
12
13
14
15
Pin Name
PWM4, PWM3
TONSET
ISEN1N to ISEN4N
ISEN1P to ISEN4P
VSEN
FB
COMP
RGND
IMON
Pin Function
PWM outputs for Channel 3 and 4 of VDD controller.
VDD controller on-time setting. Connect this pin to the converter input
voltage, VIN, through a resistor, RTON, to set the on-time of UGATE and
also the output voltage ripple of VDD controller.
Negative current sense input of Channel 1, 2, 3 and 4 for VDD controller.
Positive current sense input of Channel 1, 2, 3 and 4 for VDD controller.
VDD controller voltage sense input. This pin is connected to the terminal
of VDD controller output voltage.
Output voltage feedback input of VDD controller. This pin is the negative
input of the error amplifier for the VDD controller.
Compensation node of the VDD controller.
Return ground of VDD and VDDNB controller. This pin is the common
negative input of output voltage differential remote sense for VDD and
VDDNB controllers.
Current monitor output for the VDD controller. This pin outputs a voltage
proportional to the output current.
This pin provides two functions: Fixed 0.64V Reference Voltage Output
and Current Gain Ratio Setting for VDD and VDDNB Controller. Connect a
resistive voltage divider from VCC to GND and connect the joint of the
voltage divider to this pin for current gain ration setting. The pin also used
to offset the output voltage of the IMON pin and the IMONA pin. Bypass
this pin to GND with the 22nF ceramic capacitor for noise decoupling and
pin setting accuracy.
is a registered trademark of Richtek Technology Corporation.
16
V064/SET3
Copyright
©
2019 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
RGND
IMON
V064/SET3
IMONA
VDDIO
PWROK
SVC
SVD
SVT
OFS
OFSA
SET1
SET2
RT3667BL
GQW
YMDNN
YMDNN : Date Code
PWM4
TONSET
ISEN2P
ISEN2N
ISEN1N
ISEN1P
ISEN3P
ISEN3N
ISEN4N
ISEN4P
VSEN
FB
COMP
1
2
3
4
5
6
7
8
9
10
11
12
13
14 15 16 17 18 19 20 21 22 23 24 25 26
53
39
38
37
36
35
34
GND
33
32
31
30
29
28
27
PGOOD
PGOODA
EN
ISENA1P
ISENA1N
ISENA2N
ISENA2P
VSENA
FBA
COMPA
IBIAS
VCC
OCP_L
WQFN-52L 6x6
DS3667BL-00
September
2019
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
