ST STM32MP257F-EV1 User Manual page 12

6.5 Power supply
This product is not delivered with a power supply.
A power supply unit or auxiliary equipment complying with the EN 62368‑1 (2014+A1/2017) standard and safety
extralow voltage (SELV/ES1) with limited power capability (LPS/PS2) must power this equipment.
6.5.1 Power diagram
Figure 7 describes the power architecture and the maximum voltage and current limits, under which functions can
be safely used on the STM32MP257F-EV1 product. In any case, ensure the total power budget of the application
always conforms to the selected 5 V power source mode, if not, malfunction can occur. For detailed configuration,
refer to the relevant function description and technical application notes.
STLINK-V3EC
ST-LINK MCU
VBUS_STLK
Type-C
VIN = [5 to 12V]
Protection
BUCK
VINSW
VINA
5.2 V/4 A
EN
P ower jack ST1S41I PUR
STPMIC25APQR
ON / INT
PONKEYn
SYSTE M
CONTROL
and
LOGIC
BUCK1IN
BUCK1
PGND1
0.5-1.5 V/0.5-2 A
BUCK2IN
BUCK2
PGND2
0.5-1.5 V/0.5-2 A
BUCK3IN
BUCK3
PGND3
0.5-1.5 V/0.5-2 A
BUCK4IN
BUCK4
PGND4
1.5-4.2 V/0.25-0.5 A
SUPPLY
LDO12IN
MUX
LDO2
0.9 to 4 V-BP/50 to 400 mA
BUCK5IN
BUCK5
PGND5
1.5-4.2 V/0.25-0.5 A
VIN
INTLDO
SUPPLY
VBUS
MUX
BUCK6IN
BUCK6
PGND6 0.5-1.5 V/0.5-2 A
REFDDR
V
DD _DDR
LDO3
LDO3IN
1.7 to 3.3 V-SnkSrc/120 mA
LDO5
LDO56IN
0.9 to 4 V-BP/50 to 400 mA
3V3
LDO6
0.9 to 4 V-BP/50 to 400 mA
LDO7
LDO78IN
0.9 to 4 V-BP/50 to 400 mA
LDO8
0.9 to 4 V/150 mA
BUCK7IN
BUCK7
PGND7
1.5-4.2 V/1-2.5 A
UM3359 - Rev 2
5V: 500 mA/1.5 A/3 A
OCP
OR*
*via jumper
5V_VIN
Sw
Fb
5.2 V output voltage
WA KEUPn
WA KEUPn
SDA I2C7_ SDA
I2C7_SCL
SCL
INTn INTn
PW RCTR L1 PWR_ONLP
PW RCTR L2 PW R_CP U_ON
PW RCTRL3 NRST_FLASH_CPU
NRST
RST n
VIO
RESET
V
(670 mV/800 mV/910 mV)
VLX1 DDCP U
VOUT1
V
(670 mV/820 mV)
VLX2 DDCORE
VOUT2
V
(800 mV/900 mV)
VLX3 DDGPU
VOUT3
VDDIO (3.3 V)
VLX4
VOUT4
V
DDA 1V8_A ON
LDO1 LDO1OUT
1.8 V/20 mA
V (3.3 V)
DD_ EMMC
L DO2OUT
1V8
VLX5
VOUT5
INT LDO
V (3.3 V)
LDO4 LDO4OUT DD3V 3_USB
3.3 V/50 mA
V (1.2 V)
DD _DDR
VLX6
VOUT6
V (0.6 V)
REF_DDR
VREFDDR
V (0.6 V)
TT _DDR
LDO3OUT
V (2.5 V)
LDO5OUT P P_DDR
LDO6OUT
LDO6 free
V (3.3 V)
DD_SDCARD
LDO7OUT
V (3.3 V/1.8 V)
DD IO_SDCARD
LDO8OUT
3V3
VLX7
VOUT7
V
DD_SDCARD
VDD
SD-card supply VDD1 : 2.7 to 3.6 V
1V8
VCCQ
eMMC
V
DD_ EMMC
V5.0 / 8-bit / 4 GBytes
3V3
Q-SP I NOR
VCC
512-Mbit / 133 MHz
Figure 7. Power diagram
V
DDIO PWR_CPU_ON
K
K5 K5 0
1 1 1
PC13
PD14 (I2C7_SDA)
PD15 (I2C7_SCL)
PA0 (PWR_WKUP1)
PWR_ON
PWR_CPU_ON
NRSTC1MS
NRST
VDDCPU
VDDCORE
VDDGPU
VDD
PDR_ON
(1.8 V)
VDDA18AON
VBAT
V08CAP
VDDA18PLL1
VDDA18PLL2
VDDA18PLL3
STM32MP257FAI3
VDD33USB
VDDA18USB
VDD33UCPD
VDDIO2
VDDIO3
VDDIO4
VDDIO1
VDDA18COMBOPHY
VDDCOMBOPHY
VDDCOMBOPHYTX
VDDPCIECLK
VDDLVDS
VDD18LVDS
VDDA18CSI
VDDCSI
VDDA18DSI
VDDDSI
VDDA18ADC
VREF+
VREF-
VSSA
VDDA18DDR
DDR_VREF
NC
VDDQDDR
VDD/VDDQ
2x DDR4
8- Gbit / 16-bit
VREFCA
2400 Mbps
VPP
MT40A512M16LY-062 E IT:E
Hardware layout and configuration
LDO
1.5 V, 1.3 A
1V8
24x56Ω
UM3359
2x CAN FD
USB Type-C HS
®
Power Delivery
DRD
SRC 5 V/1.5 A
SNK 5 V/0 A
USB Host
Type-A x2
Mini PCIe
Ethernet
RGMII
x3
DSI
connector
LVDS
connector
CSI camera
connector
40-pin
expansion and
mikroBUS TM
connectors
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