NXP Semiconductors LPC55S36-EVK, Руководство пользователя, Страница: 27 / 49

Table 9. LPC55S36-EVK power supplies (continued)
Power source Manufacturing part
number Power supply rail Description
• Produces VCC_IF_LINK supply, which
provides power to MCU-Link, debug trace
connector (J38), voltage translators (U17,
U19, U20, U21), buffer (U33), and current
measurement circuit
From VCC_3V3_1V9
supply through jumper
JP33 MCU_VCC_3V3_1V9
(3.3 V or 1.9 V)
• Produces MCU_VDD, MCU_VDDA,
MCU_VBAT, and MCU_MAIN supplies
• Supplies power to current measurement circuit
From
MCU_VCC_3V3_1V9
supply through jumper
JP20 MCU_VDD (3.3 V or
1.9 V)
• Provides VDDIO power to the target MCU
• Supplies power to boot configuration jumper
(J43)
From
MCU_VCC_3V3_1V9
supply through jumper
JP21 MCU_VDDA (3.3 V
or 1.9 V) Produces MCU_VDDA_F supply, which supplies
power to the target MCU and operational amplifiers
(op-amps)
From
MCU_VCC_3V3_1V9
supply through jumper
JP22 MCU_VBAT (3.3 V
or 1.9 V) Provides VBAT power to the target MCU
From
MCU_VCC_3V3_1V9
supply through jumper
JP28 MCU_MAIN (3.3 V or
1.9 V) Provides VDD_MAIN power to the target MCU
2.1.1 Current measurement
The LPC55S36-EVK board supports current measurement for some of its power supplies using an ammeter. To measure current
for a power supply, the ammeter is connected between the two pins of the jumper that controls the power supply. The table below
lists power supplies that support current measurement, along with jumper corresponding to each supply.
Table 10. Power supplies with current measurement support
Power supply Jumper
MCU_VDD JP20
MCU_VDDA JP21
MCU_VBAT JP22
MCU_MAIN JP28
MCU_VCC_3V3_1V9 JP33
For MCU_VCC_3V3_1V9 supply, current measurement is also supported through onboard MCU-Link. For more details, see
Measuring target MCU power consumption .
NXP Semiconductors
LPC55S36-EVK Functional Description
LPC55S36-EVK Board User Manual, Rev. 1, 24 January 2022
User Manual 27 / 49