FUNCTIONAL DEVICE OPERATION
SUPPLIES
SUPPLIES
SUPPLY FLOW
The switched mode power supplies and the linear regulators are dimensioned to support a supply flow based upon Figure 15.
Battery
Charger
Power Audio
Voltage &
Current
Control
Protect
and
CC Charge
RTC,
MEMA/B
Coincell
USB Cable
Interface
Accessory
Detect
BP
Peripherals
SWBST
5.0V
PGATE
UVBUS
External
Memory
IO and
Digital
SW4
1.8V
VUSB
USB
PHY
VUSB2
SW1
0.6 to 1.15V
SW2
0.6 to 1.25V
SW3
1.25V
Coin Cell
Vcoredig
Serial Backlight
Peripherals
Drivers
PGATE
SOG Core
DVS Domain
GP Core
DVS Domain
Internal
Processor
Memory
Alternate hardwired
bias option from SW4
GPOs
Core
Processor Interfaces
Alternate hardwired bias option
from external 2.2V switcher
Vcam
Viohi
VGEN1
VGEN2
VVIDEO
Vdig
Vsd
Vcore
Vpll
VGEN3
VAUDIO
Audio
PNP
PNP
PNP
PNP
PNP
PNP
Peripherals
IO, EFUSE
Core PLLs
(Analog)
Camera
GPS Core
SD, Tflash
WLAN, BT
MLC NAND
TV-DAC
Peripherals
Legend
External
Loads
System
Supplies
Internal
Loads
Energy
Source
Figure 15. Supply Distribution
While maintaining the performance as specified, the minimum operating voltage for the supply tree is 3.0 V. For lower
voltages, the performance may be degraded.
Table 43 summarizes the available power supplies.
Table 43. Power Tree Summary
Supply
Purpose (Typical Application)
Buck switcher for processor core(s)
Output Voltage (in V)
0.600-1.375
Load Capability (in mA)
SW1
SW2
1050
800
Buck switcher for processor SOG, etc.
0.600-1.375; 1.100-1.850
Buck switcher for internal processor memory and
peripherals
SW3
0.600-1.375; 1.100-1.850
800
SW4
Buck switcher for external memory and peripherals
Boost switcher for USB OTG, Tri-color LED drivers
IO and Peripheral supply, eFuse support
Quiet Analog supply (PLL, GPS)
Low voltage digital (DPLL, GPS)
SD Card, external PNP
0.600-1.375; 1.100-1.850
5.0
800
300
100
50
SWBST
VIOHI
VPLL
2.775
1.2/1.25/1.5/1.8
1.05/1.25/1.65/1.8
1.8/2.0/2.6/2.7/2.8/2.9/3.0/3.15
2.4/2.6/2.7/2.775
2.5/2.6/2.7/2.775
2.3/2.5/2.775/3.0
VDIG
50
VSD
250
50
VUSB2
VVIDEO
VAUDIO
External USB PHY supply
TV DAC supply, external PNP
350
150
Audio supply
13892
Analog Integrated Circuit Device Data
Freescale Semiconductor
71
FREESCALE [ Freescale ]
