XRP7720 Datasheet, PDF (8/28 Pages) Exar Corporation – Quad Output Universal Customizable PMIC with PFM

BLOCK DIAGRAM
XRP7720
Quad Output Universal Customizable PMIC with PFM
VOUT1
PreScaler
1/2/4
VREF
DAC
VOUT3
Feedback
ADC
Channel 1
Digital
PID
Hybrid
DPWM
VCC
SS & PD
Current
ADC
Dead
Time
Gate
Driver
Channel 2
BST1
GH1
LX1
GL1
GL_RTN1
VCCD1-2
VOUT3
VOUT4
Channel 3
Channel 4
VCCD3-4
ENABLE
GPIO 0-1
PSIO 0-2
SDA,SCL
4uA
GPIO
Internal
POR
NVM
Sequencing
PSIO
Configuration
Registers
I2C
(-DEV Only)
LOGIC
PWR
Good
CLOCK
Fault
Handling
OTP
UVLO
OCP
OVP
Vtj
MUX
5V LDO
VCC
LDO5
LDO BLOCK DIAGRAM
Figure 2 XRP7720 Block Diagram
VCCD3-4 VCCD1-2
LDO5
Gate Drivers
VCC
5V LDO
5V Blocks
PSIO
AVDD DVDD
1.8V
Regulator
3.3V Regulator
1.8V Analog
3.3V GPIO
1.8V Digital
© 2014 Exar Corporation
V5EXT
+ 4.75V – 4.9V
-
Figure 3 XRP7720 LDO Block Diagram
8/28
Rev. 1.0.0