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Evaluation Board User Guide for ADP5134 Micropower Management Unit (PMU)

User guide for evaluating the ADP5134 PMU, featuring two buck regulators and two LDOs with power sequencing, mode options, and adjustable voltage settings.

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Overview

The UG-591 user guide describes the evaluation board for the Analog Devices ADP5134 Micropower Management Unit (PMU). The device integrates two step-down buck regulators and two low-dropout (LDO) regulators in a 24-lead LFCSP package. The board supports standalone operation for measuring line and load regulation, efficiency, and output ripple. Features include adjustable output voltages via external resistor dividers, dedicated precision enable pins for custom power sequencing, and a mode pin to toggle between PFM and forced PWM operation. The documentation provides detailed schematics, PCB layouts, and a full bill of materials listing components from Murata, Panasonic, and Analog Devices.

Use Cases

Portable electronic devices
Power management evaluation
Multi-rail system design
Microprocessor power sequencing

Topics

ADP5134

PMU

Evaluation Board

Buck Regulator

LDO

Micropower Management

Analog Devices

Power Sequencing

Voltage Regulator

Referenced Parts

GRM155R60J105KE19D

Murata

6 C2, C3, C8, C11, C13, C15 Capacitor, MLCC, 1.0 μF Murata GRM155R60J105KE19D

GRM155R60J475ME87D

Murata

2 C1, C4 Capacitor, MLCC, 4.7 μF Murata GRM155R60J475ME87D

GRM155R71C104KA88D

Murata

1 C5 Capacitor, MLCC, 0.1 μF Murata GRM155R71C104KA88D

GRM188R60J106ME47D

Murata

2 C7, C10 Capacitor, MLCC, 10.0 μF Murata GRM188R60J106ME47D

LQM2HPN1R0MJ0L

Murata

2 L1, L2 Inductor, 1.0 μH Murata LQM2HPN1R0MJ0L

ERA-3YEB103V

Panasonic

1 R17 Resistor, 0603, 10 kΩ Panasonic ERA-3YEB103V

ERJ-3EKF1003V

Panasonic

8 R1 to R8 Resistor, 0603, 100 kΩ Panasonic ERJ-3EKF1003V

ADP5134

Analog Devices

The ADP5134 is available in a 24-lead 4 mm × 4 mm LFCSP package.

GRM155R60J105KE19D	Murata	6 C2, C3, C8, C11, C13, C15 Capacitor, MLCC, 1.0 μF Murata GRM155R60J105KE19D
GRM155R60J475ME87D	Murata	2 C1, C4 Capacitor, MLCC, 4.7 μF Murata GRM155R60J475ME87D
GRM155R71C104KA88D	Murata	1 C5 Capacitor, MLCC, 0.1 μF Murata GRM155R71C104KA88D
GRM188R60J106ME47D	Murata	2 C7, C10 Capacitor, MLCC, 10.0 μF Murata GRM188R60J106ME47D
LQM2HPN1R0MJ0L	Murata	2 L1, L2 Inductor, 1.0 μH Murata LQM2HPN1R0MJ0L
ERA-3YEB103V	Panasonic	1 R17 Resistor, 0603, 10 kΩ Panasonic ERA-3YEB103V
ERJ-3EKF1003V	Panasonic	8 R1 to R8 Resistor, 0603, 100 kΩ Panasonic ERJ-3EKF1003V
ADP5134	Analog Devices	The ADP5134 is available in a 24-lead 4 mm × 4 mm LFCSP package.