PCF2131 datasheet(11/34 Pages) NXP

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NXP Semiconductors

UM12262

FRDM-IMX91 Board User Manual

Figure 6. FRDM-IMX91 power supply

Table 8 describes different power sources available on the board.

Part

identifier

designator

Manufacturing

part number

Part

manufacturer

Power supply

Specifications Description

U702

MP8759GD

Monolithic Power

Systems Inc.

• DCDC_5V

• VSYS_5V

• 5 V at 8 A

Supplies power to:

• PMIC PCA9451AHNY (U701)

• NX20P3483UK USB PD and

Type-C switches (U710)

• DC buck MP2147GD (U726)

for VPCIe_3V3

• Load switch SGM2526 (U733)

for VRPi_5V

• Load switch SGM2526 (U742)

for VBUS_USB2_5V

U726

MP2147GD

Monolithic Power

Systems Inc.

VPCIe_3V3

3.3 V at 3 A

• Input supply for switch-mode

converter MP1605C (U730)

• Supply for onboard tri-radio

module u-blox MAYA-W476-00

B (U731)

Table 8. FRDM-IMX91 power supply devices

UM12262

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User manual

Rev. 3.0 — 22 April 2025

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