19/46
Application Note
BD71837MWV Platform Design Guide
© 2018 ROHM Co., Ltd.
No. 61AN002E Rev.001
May.2018
Figure 5.1 BD71837MWV Power Delivery Map
0.9V
0.9V/1.0V
0.9V/1.0V
0.9V/1.0V
1.0V
3.3V
0.9V
3.3V
3.3V
1.8V
1.8V
1.8V
0.9V
0.9V
VSYS(5V)
1.1/1.2/1.35V
PMIC_STBY_REQ
HOST
I/F
32kHz
Xtal
Driver
150mA MUXSW
BD71837MWV
1.8V/3.3V(SD CARD)
1.8V
3.3V
I2C I/F
WDOG_B
PMIC_ON_REQ
POR_B
RTC_RESET_B
SD_VSELECT
IRQ_B
XOUT
XIN
C32K_OUT
BUCK6
3.0A, 3.0 to 3.3V
/0.1V step
BUCK7
1.5A, 1.6V to 2.0V
/ 8steps
NVCC_DRAM
VDD_SOC
VDD_ARM
VDD_GPU
VDD_VPU
VDD_DRAM
NVCC_SNVS
3P3_PHY
GPIO_3V3
VDD_SNVS
VDDA_1P8
1P8_PHY
GPIO_1V8
VDDA_0P9
0P9_PHY
iMX8M
VDDA_DRAM
BUCK1
–
DVS
3.6A, 0.7V to 1.3V
/10mV step
BUCK2
–
DVS
4.0A, 0.7V to 1.3V
/10mV step
BUCK3
–
DVS
2.1A, 0.7V to 1.3V
/10mV step
BUCK4
–
DVS
1.0A,0.7V to 1.3V
/10mV step
BUCK5
2.5A,0.7V to 1.35V
/ 8steps
BUCK8
3.0A,0.8V to 1.4V
/10mV step
LDO1
10mA,3.0V to 3.3V
/1.6V to 1.9V
LDO2
10mA,
0.9V/0.8V
LDO7
150mA,
1.8V to 3.3V
LDO3
300mA,
1.8V to 3.3V
LDO5
300mA,
1.8V to 3.3V
LDO4
250mA,
0.9V to 1.8V
LDO6
300mA,
0.9V to 1.8V
PWRON_B
