RT5035A/B
Functional Block Diagram
BAT
VOUT1
LX1
VDDM VOUT1
VDDM
PVDD5
LX5
Body
Diode
Control
BAT
BAT UVLO
2.6V/2.4V (Part A)
or 1.7V/1.5 (Part B)
CH1
PFM Async.
or
C-Mode Sync.
LV Step-Up
CH5
LV C-Mode
Sync.
VOUT1
Step-Down
VOUT5/FB5
-
+
Floating GND
Selection
-
A9.Bit0
V
& DAC
REF
+
V
DAC
&
REF
(W / DVS)
VDDM
PVDD2
VNEG
PVDD6
VOUT6
CH6
Generic LDO
LX2A
VOUT2
CH2
LV C-Mode
Sync.
Step-Up/Down
-
LX2B
+
V
& DAC
REF
VDDM
-
VNEG
VDDM
CH7 (WLED)
HV C-Mode
Async. Step-Up
For 2 to 6WLED
LX7
+
V
& DAC
REF
PVDD3
LX3
V
& DAC
+
-
REF
FB7
CH3
LV C-Mode
Sync.
PVDD8
CH8
Generic LDO
Step-Down
VOUT3/FB3
VOUT8
VNEG
-
-
+
+
V
& DAC
REF
(W / DVS)
V
& DAC
REF
(W / DVS)
VDDM
VDDM
PVDD4/10
PVDD4/10
LX4
CH10
PFM or
LV C-Mode
Sync.
LX10
CH4
LV C-Mode
Sync.
Reg.PFM10
Step-Down
Step-Down
VOUT10/FB10
VOUT4/SWI
VNEG
VDDM
-
VNEG
-
+
+
V
& DAC
REF
V
REF
& DAC
(W / DVS)
(W / DVS)
I2C Control Interface
(Fast Mode up to 400kb/s)
SCL
SDA
VDDM
BAT
VM
VOUT1
SW4 Control
SWO
Charge
Pump for SW
Max (BAT, VOUT1)
VOUT1
Body
Diode
Control
CH9 LDO
Keep Alive
3.1V
Always On
Chip Enable
EN
Register File
Output Voltage,
Power On/Off
VDDM
Sequence
Selection
SEQ
RESET
2.4V/2.2V
Sequence Control,
Delay time,
WLED dim. Ratio,
CH7 OVP
RESET
Reverse Leakage
Control
PLL
SYNC
Threshold
32bits Memory
BAT
VDDM
RTCPWR
XIN
CP
VNEG
CN
Charge Pump
VNEG = BAT-4.5V
XOUT
VNEG
Base Controller
POR/OSC/UVP/
OVP/OCP/OTP
RTC + OSC+
Reset@1.9V
RTCGND
VDDM
C32K
GND
Copyright © 2020 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS5035A/B-03 February 2020
www.richtek.com
5
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
