MPQ7920-AEC1

Pre-Release

5V Power Management IC with Four 2A/2.5A/4.5A/4.5A Buck Converters, 5 LDOs, and Flexible System settings via I2C and MTP



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Product Description

The MPQ7920 is a complete power management solution which integrates four high efficiency step-down DC/DC converters, five low dropout regulators and flexible logic interface.

COT control DC/DC converter provides fast transient response. Up to 2.2MHz fixed switching frequency during CCM mode greatly reduces external inductor and capacitor value. Full protection features include UVLO, OCP, OVP and thermal shutdown.

Output voltage is adjustable through I2C bus or preset by MTP (Multi Time Programmable). The power on/off sequence is also programmable by MTP or can be controlled through I2C bus online.

The MPQ7920 requires a minimal number external components, and is available in space-saving 26-pin QFN-26 (3.5mmx4.5mm) package.

Product Features

  • High Efficiency Step-Down Converters
    • Buck1: 4.5A DC/DC Converter
    • Buck2: 2.5A DC/DC Converter
    • Buck3: 4.5A DC/DC Converter
    • Buck4: 2A DC/DC Converter
    • Buck1 and Buck3 can Work in Parallel
    • Buck2 and Buck4 can Work in Parallel
    • 2.7V to 5.5V Operating Input Range
    • 0.4V to 3.58V or Vin Output Range
    • Adjustable Switching Frequency
    • Adjustable Soft-start Time
    • Adjustable Phase Delay
    • Programmable Forced PWM/Auto PFM/PWM Mode
    • Output OCP, OVP
  • Low Dropout Regulators
    • One RTC Dedicate LDO
    • Four Low Noise LDOs
    • Two Separate Input Power Supplies
    • 50mV Dropout at 300mA Load
  • System
    • I2C Bus and User Programmable MTP
    • 2 Times Programmable MTP*
    • Power On/off Control
    • Multi Function pin LDO2/EN1(EN1 input logic level<=3.3V)
    • Power On Reset Output
    • Flexible Power On/off Sequence via MTP(0.5ms/2ms/8ms/16ms time slot selectable)
    • Flexible DC/DC, LDO On/off via MTP
    • ±4kV HBM and ±2kV CDM ESD Rating for all pins

Parametrics

  • Vfb (V)1.375/ 1.35/ 1.375/ 0.675
  • Vin (min) (V)2.7
  • Vin (max) (V)5.5
  • Iout (max) (A)4.5
  • Regulated Outputs4
  • fsw (max) (kHz)2200
  • Step-Down DC/DC Converter4
  • Internal LDO5
  • GradeAutomotive
  • PackageQFN-26 (3.5x4.5)
  • Control ModeCOT
  • LDO Current (A)0.3
  • Step-Down Converter Current (A)4.5/ 2.5/ 4.5/ 2
  • Special Features100% Duty Cycle, Adjustable Switching Frequency, Buck Output Discharge, Enable, I2C Interface, Internal Soft Start, Low Dropout Mode, OCP, Parallel Capability for Buck
  • Common FeaturesPower Good
  • SSInternal
  • PGYes