®
RT5090C
TV System Power Management Solution
General Description
The RT5090C integrates 1 channel buck controller, 3
channels high efficiency synchronous buck converters, 1
LDO, I
2
C Control interface and peripheral logical control.
The RT5090C support mute, AC OFF depop sound and
quick setting storage while input power remove. The
RT5090C is for 12V to 24V single input system or 12V to
24V + 3.3V standby system. The RT5090C is available in
a WQFN-40L 5x5 package.
Features
BUCK1
�½
�½
�½
5V Power Controller
External MOSFET
High Efficiency at Light Load (PSK)
BUCK2
3A Converter with PSK Mode
DVS with 10mV/Step
Programmable Output Voltage by I
2
C, from 0.7V
�½
�½
�½
to 1.5V
Ordering Information
RT5090C
Package Type
QW : WQFN-40L 5x5 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
Richtek products are :
�½
BUCK3
�½
6A Converter with PSK Mode
�½
Support up to 6A with External Low Side MOSFET
�½
�½
DVS with 10mV/Step
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
�½
Suitable for use in SnPb or Pb-free soldering processes.
Pin Configuration
(TOP VIEW)
VIN_LDO
SDA
SCL
SOC_REST
EN_CTRL
VCAP
AGND
VCC
VDET
ENTRIP
Programmable Output Voltage by I
2
C, from 0.7V
to 1.5V
BUCK4
�½
3A Converter with PSK Mode
�½
Programmable Output Voltage
LDO
�½
Sourcing up to 0.6A
�½
Programmable Output Voltage
UV Protection : Latch or Hiccup Mode
OV Protection : Only Latch Mode
Power Up SOC Reset
Applications
TV System
40 39 38 37 36 35 34 33 32 31
MUTE_OUT#
MUTE_IN
FB4
FB_LDO
VLDO
LX4
LX4
VIN4
VIN2
LX2
1
2
3
4
5
6
7
8
9
10
11 12 13 14 15 16 17 18 19 20
41
30
29
28
27
26
25
24
23
22
21
PGND
FB1
VIN1
BOOT1
UGATE1
PHASE1
LGATE1
VIN3
VIN3
NC
LX3
Marking Information
RT5090CGQW : Product Number
RT5090C
GQW
YMDNN
YMDNN : Date Code
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
LX2
VIN1_OK
VSEN2
RGND2
VSEN3
INT#
LG3
LX3
LX3
LX3
WQFN-40L 5x5
is a registered trademark of Richtek Technology Corporation.
DS5090C-00
September 2018
www.richtek.com
1
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
