PMIC. RT5028B Datasheet

RT5028B PMIC. Datasheet pdf. Equivalent

RT5028B Datasheet
Recommendation RT5028B Datasheet
Part RT5028B
Description PMIC
Feature RT5028B; ® RT5028B PMIC for Industrial Application General Description The RT5028B is a highly-integrated l.
Manufacture Richtek
Datasheet
Download RT5028B Datasheet




Richtek RT5028B
®
RT5028B
PMIC for Industrial Application
General Description
The RT5028B is a highly-integrated low-power high-
performance analog SOC with PMIC in one single chip
designed for Industrial applications.
The RT5028B includes four synchronous step-down DC/
DC converters and eight LDOs for system power.
The RT5028B also embeds one EEPROM (MTP) for
setting sequence and timing etc.
Additionally, the RT5028B PMIC also includes one IRQ
report.
Applications
Industrial
Ordering Information
RT5028B
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.
Features
Input Voltage Operating Range is 3.3V to 5.5V
Step-Down Regulator : VIN Range is 3.3V to 5.5V
Max Current 2.5A/2.5A/1.6A/2A
Programmable Frequency from 500kHz to 2MHz
I2C Programmable Output Level
I2C Programmable Operation Mode (Force PWM
or Auto PSM/PWM)
I2C Programmable Output Discharge Mode
(Discharge or Flatting)
Linear Regulators : VIN Range is 2.5V to 5.5V
Max Current 0.3A
I2C Programmable Output Level
Embedded 32Bytes MTP for Factory Tuning
External MTP Pin for Write Protection
Sequence can be Controlled by I2C or Each EN Pins
Defined by MASK_GPIO Pin
OT/UVP/VIN LV/POWRON Press Time Interrupt
(IRQ).
I2C Control Interface : Support Fast Mode up to
400kb/s
Simplified Application Circuit
RT5028B
VIN VOUTLx
VDDP
SCL
VINL123
VINL456
VINL78
SDA
IRQ
RESET
PWRHOLD
LXBx
PWRON
VOUTBxS
VINBx
REBOOT
MTP
ENBx
ENLx
MASK_GPIO
SADDR
AGND
Copyright ©2016 Richtek Technology Corporation. All rights reserved.
DS5028B-00 April 2016
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
1



Richtek RT5028B
RT5028B
Marking Information
RT5028BGQW : Product Number
RT5028B
GQW
YMDNN
YMDNN : Date Code
Pin Configurations
(TOP VIEW)
56 55 54 53 52 51 50 49 48 47 46 45 44 43
VOUTL1 1
VINL123 2
VOUTL2 3
VOUTL3 4
VOUTL6 5
VOUTL5 6
VINL456 7
VOUTL4 8
VOUTL7 9
VINL78 10
VOUTL8 11
ENL4 12
ENL5 13
ENL6 14
AGND
57
42
41
40
39
38
37
36
35
34
33
32
31
30
29
15 16 17 18 19 20 21 22 23 24 25 26 27 28
LXB2
LXB2
ENB2
VOUTB2S
VINB3
VINB3
LXB3
LXB3
AGND
VOUTB3S
VINB4
LXB4
ENB3
VOUTB4S
WQFN-56L 7x7
Functional Pin Description
Pin No.
1
Pin Name
Pin Function
VO UTL1
Output Voltage Regulation Node for LDO1.
2
VINL123
Input Power for LDO1, LDO2 and LDO3.
3
VO UTL2
Output Voltage Regulation Node for LDO2.
4
VO UTL3
Output Voltage Regulation Node for LDO3.
5
VO UTL6
Output Voltage Regulation Node for LDO6.
6
VO UTL5
Output Voltage Regulation Node for LDO5.
7
VINL456
Input Power for LDO4, LDO5 and LDO6.
8
VO UTL4
Output Voltage Regulation Node for LDO4.
9
VO UTL7
Output Voltage Regulation Node for LDO7.
10 VINL78
Input Power for LDO7 and LDO8.
11
VO UTL8
Output Voltage Regulation Node for LDO8.
12 ENL4
Enable Control Input for LDO4. Connect a 100kpull-low resistor.
13 ENL5
Enable Control Input for LDO5. Connect a 100kpull-low resistor.
14 ENL6
15 SCL
Enable Control Input for LDO6. Connect a 100kpull-low resistor.
Clock Input for I2C. Open-drain output, connect a 10kpull-up resistor.
Copyright ©2016 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
is a registered trademark of Richtek Technology Corporation.
DS5028B-00 April 2016



Richtek RT5028B
RT5028B
Pin No.
Pin Name
16 SDA
17 ENL7
18 ENL8
19 IRQ
20 RESET
21, 34, 56, 57
(Exposed Pad)
AGND
22 PWRON
23 REBOOT
24 MTP
25 MASK_GPIO
26
27
28
29
30
31
32
33
35, 36
37, 38
39
40
41, 42
43, 44
45, 46
47, 48
49
50
51
52
53
54
55
PWRHOLD
SADDR
ENB4
VOUTB4S
ENB3
LXB4
VINB4
VOUTB3S
LXB3
VINB3
VOUTB2S
ENB2
LXB2
VINB2
VINB1
LXB1
ENB1
VOUTB1S
VDDP
VIN
ENL1
ENL2
ENL3
Pin Function
Data Input for I2C. Open-drain output, connect a 10kpull-up resistor.
Enable Control Input for LDO7. Connect a 100kpull-low resistor.
Enable Control Input for LDO8. Connect a 100kpull-low resistor.
Open-Drain IRQ Output Node.
Reset Output.
Analog Ground. The exposed pad must be soldered to a large PCB and
connected to AGND for maximum power dissipation.
Manual Power On. Connect a 100kpull-up resistor.
System Power Reboot. Connect a 100kpull-low resistor.
MTP Write Protection Pin. Connect a 100kpull-low resistor, logic low is
inhibited and logic high is permit to write.
Select I2C or use EN pin for Bucks and LDOs. Connect a 100kpull-low resistor.
As MASK_GPIO is high, ignore all EN pins.
As MASK_GPIO is low, EN pins and I2C both can control. EN pins priority is
higher than I2C.
Power Hold Input. Connect a 100kpull-low resistor.
I2C Slave Address. Connect a 100kpull-low resistor.
Enable Control Input for Buck4. Connect a 100kpull-low resistor.
Output Voltage Regulation Node for Buck4.
Enable Control Input for Buck3. Connect a 100kpull-low resistor.
Internal Switch Node to Output Inductor Connection for Buck4.
Input Power for Buck4.
Output Voltage Regulation Node for Buck3.
Internal Switch Node to Output Inductor Connection for Buck3.
Input Power for Buck3.
Output Voltage Regulation Node for Buck2.
Enable Control Input for Buck2. Connect a 100kpull-low resistor.
Internal Switch Node to Output Inductor Connection for Buck2.
Input Power for Buck2.
Input Power for Buck1.
Internal Switch Node to Output Inductor Connection for Buck1.
Enable Control Input for Buck1. Connect a 100kpull-low resistor.
Output Voltage Regulation Node for Buck1
Internal Bias Regulator Voltage. External load on this pin is not allowed.
Input Power for Analog Base.
Enable Control Input for LDO1. Connect a 100kpull-low resistor.
Enable Control Input for LDO2. Connect a 100kpull-low resistor.
Enable Control Input for LDO3. Connect a 100kpull-low resistor.
Copyright ©2016 Richtek Technology Corporation. All rights reserved.
DS5028B-00 April 2016
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
3







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