Kontron SMARC Evaluation Carrier - Manual (Page 66)

User’s Guide
66 www.kontron.com
IN MAX1818 OUT
SHDN# POK
V_1V8_LDO
1V8_LDO_POK
IN TPS63020 OUT
EN PG
V_5V0_USB @2A
PG_5V0_USB
17.2 Figure 17 Power Architecture
J29
BENCH
SUPPLY
CONNECTOR
IF CHARGER POWER
AND / OR BATTERY
POWER ARE USED,
THEN BENCH SUPPLY
INPUT MUST BE LEFT
OPEN
3.0V TO 5.25V MODULE POWER
3.0V TO 5.25V CARRIER POWER
MODULE POWER DOMAIN
MODULE POWER
J28
CHARGER
CONNECTOR
J23, J24, J25
BATTERY
CONNECTORS
V_CHARGER
BATTERY
SELECT
JUMPERS V_BAT
IN
IN / OUT
BATTERY CHARGER
CIRCUITS OUT
STEP-DOWN SWITCHER
WIDE INPUT RANGE
NOT USED FOR SINGLE LEVEL CELLS
IN
IS USED FOR TWO AND THREE LEVEL
SERIES CELLS
ENABLE
P-FET
OUT
5V OUTPUT IF
SWITCHER IS USED
J56
J55
MODULE POWER
1V8_LDO_SHDN#
CARRIER POWER
V_5V0_USB_EN
BATTERY V_CHARGER V_BAT V_BAT
CONFIG NOMINAL RANGE
SINGLE LEVEL ~ 5V 3.6V 3.0V - 4.2V
TWO SERIES ~10V 7.2V 6.0V – 8.4V
Resistor
J27
Switcher Bypass Jumper
3.0V – 5.25V IF
SWITCHER IS
BYPASSED JUMPERS J56 AND J55
MUST BE OPEN WHEN
POWER IS BROUGHT IN
IN TPS63020 OUT V_5V0 @2A
THREE SERIES ~15V 10.8V 9.0V – 12.6V
(SINGLE LEVEL CELL) FROM BENCH SUPPLY
CONNECTOR J29
V_5V0_EN
EN PG PG_5V0
IN LP8545 OUT
V_31V9 @300mA
LCD_BKLT_EN
EN
CARRIER POWER ENABLE SCHEME – IN MODULE POWER DOMAIN IN TPS61087 OUT
V_12V0 @ 0.5A min
V_1V8_LDO
V_12V_EN
EN
CARRIER_PWR_ON
MODULE PIN S154 R275
POWER ENABLES
(ONLY 3 OF MANY SHOWN)
IN
V_1V5_EN
EN
TPS53310 OUT
PGD
V_1V5 @3A
PG_1V5
MAY BE NOT
INSTALLED
IN TPS63020 OUT
V_3V3 @2A
V_3V3_EN
EN PG PG_3V3
I2C_PM
I2C I/O Expander
I/O pins default to being inputs
V_3V3_PCIE_EN
IN TPS63020
EN
OUT
PG
V_3V3_PCIe @2A
PG_3V3_PCIE
IN TPS62020 OUT
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V_1V8_EN
EN
CARRIER POWER DOMAIN
V_3V3
V_1V8
V_IO Select
PFET Power Switches
Low:1V8
V_IO
SMARC VDD_IO_SEL#
Figure 17. Power Architecture