- MPQ5476
MPQ5476
12V, 6A, Fully Integrated Quad-Output PMIC with I2C Telemetry and Flexible System Configurations
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Description
The MPQ5476 is a complete power management IC (PMIC) that integrates four high-efficiency, step-down DC/DC converters. The converters use constant-on-time (COT) control to provide fast transient response. The 1000kHz switching frequency (fSW) greatly reduces external inductor and capacitor size.
The MPQ5476 supports pulse-frequency modulation (PFM) mode for high light-load efficiency, in addition to providing dynamic voltage scaling (DVS), forced discharge mode, power good (PG) mode, and shutdown mode via the I2C interface. Additional features include a default voltage setting mode. The output voltage (VOUT) can be adjusted via the I2C bus or preset by the memory.
The MPQ5476 can control the start-up sequence with soft start and a delay time via the online I2C bus or the memory.
The MPQ5476 requires a minimal number of external components, and is available in a space-saving QFN-35 (5mmx5mm) package.
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Features & Benefits
- Wide 5.75V to 15V Input Voltage (VIN) Range
- Adaptive Constant-On-Time (COT) Control for Ultra-Fast Transient Response
- 4x High-Efficiency Step-Down Regulators:
- Buck 1: 6A, 0.5V to 2.75V, 10mV Step
- Buck 2: 6A, 0.5V to 2.75V, 10mV Step
- Buck 3: 6A, 0.5V to 2.75V, 10mV Step
- Buck 4: 6A, 0.5V to 2.75V, 10mV Step
- Fully Integrated MOSFETs
- I2C Interface Control:
- Dynamic Voltage Scaling (DVS) and Shutdown of Channel Output Voltage (VOUT)
- Automatic Pulse-Width Modulation (PWM)/Pulse-Frequency Modulation (PFM) Mode or Forced PWM Mode
- Pull-Down Mode to Forcibly Discharge All Channels
- Supports Adjustable Discharge Resistance
- Buck 1/Buck 2 Support up to 12A Continuous Current in Parallel Mode
- Open-Drain Power Good (PG) Indication
- Over-Current Protection (OCP)
- Under-Voltage Lockout (UVLO)
- Under-Voltage Protection (UVP)
- Over-Voltage Protection (OVP)
- Thermal Shutdown Protection
- Available in a QFN-35 (5mmx5mm) Package

Active Part Numbers:
MPQ5476GU-0000-Z MPQ5476GU-0000-P MPQ5476GU-0001-Z MPQ5476GU-0001-P MPQ5476GU-xxxx-Z MPQ5476GU-xxxx-P
Part numbers ending in P and Z are the same parts. P and Z only indicates reel size.
Meaning of P & Z
MPQ5476 Resources
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PRODUCT CATEGORY
POWER MANAGEMENT IC (PMIC)PRODUCT CATEGORY -
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