WM8311
Pre-Production
BLOCK DIAGRAM
DC-DC1
Buck
0.6 to 1.8V
1.2A
DC-DC2
Buck
0.6 to 1.8V
1.2A
DC-DC3
Buck
0.85 to 3.4V
1A
DC-DC4
Boost
up to 30V,
up to 90mA
GND
DBVDD
Instant-
Config™
EEPROM
Interface
Interrupt and
Reset Controller
Primary Control
Interface
PVDD
DBGND
PROGVDD
DVS
DVS
LED Sink
ISINK1
OTP NVM
Bootstrap
Config &
Unique ID
System
Status
LED
ISINK2
ISINKGND
Register Map and
Application Processor
Interface
LED1
LED2
LDO1VDD
LDO 1 Standard LDO
0.9 to 3.3V 300mA
Driver
LDO1VOUT
LDO2VDD
LDO2VOUT
LDO3VDD
LDO3VOUT
LDO4VDD
LDO4VOUT
LDO5VDD
LDO5VOUT
GPIO1
GPIO2
GPIO3
GPIO4
GPIO5
GPIO6
GPIO7
GPIO8
GPIO9
GPIO10
GPIO11
GPIO12
LDO 2 Standard LDO
0.9 to 3.3V 200mA
1 to 4MHz
RC
Oscillator
LDO 3 Standard LDO
0.9 to 3.3V 200mA
Multi-
Function Pin
(GPIO)
Power
Management
Control
WM8311
LDO 4 Standard LDO
0.9 to 3.3V 100mA
Controller
PM Sub-
System
Monitoring
LDO 5 Standard LDO
0.9 to 3.3V 100mA
`
LDO 7 Analogue LDO
1.0 to 3.5V 200mA
LDO7VDD
LDO7VOUT
AP Interface, GPIOs and PM Control
ON
TPVDD
4/5-Wire
Resistive
Touch-Panel
Interface
GPIO13
GPIO14
GPIO15
GPIO16
TPGND
LDO 11 Alive LDO
LDO11VOUT
0.8 to 1.55V 25mA
AUXADCIN1
AUXADCIN2
AUXADCIN3
AUXADCIN4
Aux
ADC
LDO12VOUT
(Backup Battery Connection)
LDO 12 Internal LDO
2.1V 2mA
LDO 13 Internal LDO
2.5V 20mA
LDO13VOUT
USBVMON
SYSVMON
BATTVMON
NTCBIAS
Supply Voltage
and Battery
Monitor
SYSVDD
USBVDD
BATTVDD
NTCMON
Power Path
Management
Switching
Matrix
WALLVDD
Battery
Charger
1A
BATTFETENA
WALLVDD
XTO
XTI
32.768kHz
Oscillator
Real-Time
Clock
Wake-Up
Timer
WALLFETENA
XOSCGND
CLKOUT
VREFC
IREFR
REFGND
FLL
References
CLKIN
Auxiliary Functions
Power Management
PP, May 2012, Rev 3.1
2
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
