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Monolithic Power Systems (MPS) MP5424 Power Management Integrated Circuit (PMIC)

Monolithic Power Systems (MPS) MP5424 Power Management Integrated Circuit (PMIC) is a complete power management solution in a single package. The MP5424 integrates four high-efficiency step-down DC-DC converters, three low-dropout (LDO) regulators, one load switch, and a flexible logic interface. Constant-on-time (COT) control in the DC-DC converter provides a fast transient response. The MP5424 features a 1.1MHz default switching frequency (fSW) during continuous conduction mode (CCM). This feature greatly reduces the external inductance and capacitance. Full protection features include under-voltage lockout (UVLO) protection, over-current protection (OCP), over-voltage protection (OVP), and thermal shutdown.

The output voltage (VOUT) of the MP5424 can be adjusted via the I2C bus or preset by the multiple-time programmable (MTP) interface. The start-up and shutdown sequences can also be configured via the MTP and controlled via the I2C bus.

The Monolithic Power Systems (MPS) MP5424 PMIC requires a minimal number of external components and is available in a small 3.5mm x 4.5mm QFN-26 package.

Features

  • Four high-efficiency step-down converters
    • Buck 1: 5A DC-DC converter
    • Buck 2: 5A DC-DC converter
    • Buck 3: 5A DC-DC converter
    • Buck 4: 2A DC-DC converter
    • Buck 1 and Buck 3 can work in parallel
    • Buck 2 and Buck 4 can work in parallel
    • 2.7V to 5.5V operating VIN range
    • Buck 1, Buck 2, and Buck 3 selectable VOUT range: 0.4V to 2.2V, 7.4mV step or 0.4V to 3.58V VOUT, 12.5mV step
    • Buck 4 VOUT range: 4V to 3.58V VOUT, 12.5mV step
    • Adjustable switching frequency (fSW)
    • Adjustable soft-start time (tSS)
    • Adjustable phase delay
    • Configurable forced PWM (FPWM)
    • Output OCP and OVP
  • Three 300mA, low-noise LDOs
    • Two separate input power supplies
    • 50mV dropout at 300mA load
  • Two-time programmable MTP
  • Start-up and shutdown control
  • Enable pin (EN1) for sleep mode entry and recovery control
  • Start-up reset output
  • Flexible start-up/shutdown sequence via MTP (0.5ms, 2ms, 8ms, or 16ms selectable time slot)
  • Load Switch
    • 2.7V to 5.5V/3A load switch
    • 50mΩ on resistance at VIN = 5V
    • On/Off control via the I2C and programmable sequence
    • Configurable output discharge function via the I2C (Default: On)
  • ESD ratings
    • ±2kV human body model (HBM)
    • ±750V charged device model (CDM)
  • 150°C junction temperature
  • -40°C to +125°C operating temperature range
  • 3.5mm x 4.5mm QFN-26 package

Applications

  • General consumer
  • Camera modules
  • 3.3V and 5.0V powered systems
  • Space-limited systems

Typical Application Circuit

Application Circuit Diagram - Monolithic Power Systems (MPS) MP5424 Power Management Integrated Circuit (PMIC)

Block Diagram

Block Diagram - Monolithic Power Systems (MPS) MP5424 Power Management Integrated Circuit (PMIC)

Package Outline

Mechanical Drawing - Monolithic Power Systems (MPS) MP5424 Power Management Integrated Circuit (PMIC)
Published: 2022-10-25 | Updated: 2023-02-21