®
RT5028
Integrated PMIC with 4-Channel Synchronous Buck
Converters, 8 LDOs, and MTP Non-Volatile Memory for
Industrial Applications
General Description
The RT5028 is a highly-integrated low-power high-
performance analog SOC with PMIC in one single chip
designed for Industrial applications.
The RT5028 includes four synchronous step-down DC-
DC converters and eight LDOs for system power.
The RT5028 also embeds one EEPROM (MTP) for setting
sequence and timing etc.
Additionally, the RT5028 PMIC also includes one IRQ
report.
Features
Input Voltage Operating Range is 3.3V to 5.5V
Step-Down Regulator : V
IN
Range is 3.3V to 5.5V
Max Current 2.4A/2A/1.6A/2A
Programmable Frequency from 500kHz to 2MHz
I
2
C Programmable Output Level
I
2
C Programmable Operation Mode (Force PWM
or Auto PSM/PWM)
I
2
C Programmable Output Discharge Mode
(Discharge or Flatting)
Linear Regulators : V
IN
Range is 2.5V to 5.5V
Max Current 0.3A
I
2
C Programmable Output Level
Embedded 32Bytes MTP for Factory Tuning
External MTP Pin for Write Protection
Sequence can be Controlled by I
2
C or each EN pins
Defined by MASK_GPIO pin.
OT/UVP/VIN LV/POWRON press Time Interrupt
(IRQ).
I
2
C Control Interface: Support Fast Mode up to
400kb/s
RoHS Compliant and Halogen Free
Applications
Industrial
Ordering Information
RT5028
Package Type
QW : WQFN-56L 7x7 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
Richtek products are :
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.
Simplified Application Circuit
VOUTLx
RT5028
VDDP
SCL
SDA
VINL123
IRQ
VINL456
RESET
VINL78
PWRHOLD
PWRON
LXBx
REBOOT
VOUTBxS
MTP
VINBx
MASK_GPIO
ENBx
ENLx
SADDR
AGND
VIN
Copyright
©
2016 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS5028-02
September 2016
www.richtek.com
1
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
