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MIC7401

Configurable PMIC, Five-Channel Buck Regulator Plus One-Boost w/ HyperLight Load

Status: In Production

Features:

  • Input voltage: 2.4V to 5.5V
  • Five independent synchronous bucks up to 3A
  • One independent non-synchronous boost 200mA
  • 200µA quiescent current (all regulators on)
  • 5µA typical shutdown current
  • 93% peak buck efficiency, 85% typical efficiency at 1mA
  • Dual power mode: stand-by and normal mode
  • I2C interface up to 3.4MHz
  • Buck and boost output voltage scaling
  • Power-on-Reset (PoR) threshold and delay
  • Power-up sequencing/sequencing delay
  • Buck and boost current limit
  • Buck and boost pull-down when disabled
  • Individual ON, OFF, and stand-by modes
  • Soft-start and global power-good masking
  • 23µA buck typical quiescent current
  • 70µA boost typical quiescent current
  • 1.5% output accuracy over temperature/line/load
  • 2.0MHz boost switching frequency
  • 1.3MHz buck operation in continuous mode
  • Ultra-fast buck transient response
  • 12mm x 8.5mm x 1.25mm solution size (Top Layer)
  • Thermal-shutdown and current-limit protection
  • 36-pin 4.5mm x 4.5mm x 0.85mm FQFN package (0.4mm pitch)
  • -40°C to +125°C junction temperature range
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Overview
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Development Environment
RoHS Information
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Device Overview

Summary

The MIC7401 is a powerful, highly integrated, configurable, power-management IC (PMIC) featuring five synchronous buck regulators, one boost regulator, and a high-speed I2C interface with an internal EEPROM.The device offers two distinct modes of operation 'stand-by mode' and 'normal mode' intended to provide an energy-optimized solution suitable for portable handheld, and infotainment applications.In normal mode, the programmable switching converters can be configured to support a variety of features, including start-up sequencing, timing, soft-start ramp, output voltage levels, current-limit levels, and output discharge for each channel. In stand-by mode the PMIC can be configured in a low power state by either disabling an output or by changing the output voltage to a lower level. Independent exit from stand-by mode can be achieved either by I2C communication or by the external STBY pin.

The device has five synchronous buck regulators with high-speed adaptive on-time control that supports even the most challenging ultra-fast transient requirement for core supplies. One boost regulator provides a flash-memory programming supply that delivers up to 200mA of output current. The boost is equipped with an output disconnect switch that opens if a short-to-ground fault is detected.An internal EEPROM enables a single-chip solution across many platforms by allowing the designer to customize the PMIC for their design. Modifications can be made without the need to re-approve a new PMIC, saving valuable design resources and time. All switchers provide light-load efficiency with HyperLight Load® mode for buck and PFM mode for boost. An additional benefit of this proprietary architecture is very-low output ripple voltage throughout the entire load range with the use of small output capacitors. The MIC7401 is designed for use with a small inductors (down to 0.47µH for buck, 1.5µH for boost), and an output capacitor as small as 10µF for buck, enabling a total solution size of 12mm x 8.5mm and less than 1mm height on the top layer.

Additional Features
    • Input voltage: 2.4V to 5.5V
    • Five independent synchronous bucks up to 3A
    • One independent non-synchronous boost 200mA
    • 200µA quiescent current (all regulators on)
    • 5µA typical shutdown current
    • 93% peak buck efficiency, 85% typical efficiency at 1mA
    • Dual power mode: stand-by and normal mode
    • I2C interface up to 3.4MHz
    • I2C on-the-fly EEPROM programmability, featuring:
      • Buck and boost output voltage scaling
      • Power-on-Reset (PoR) threshold and delay
      • Power-up sequencing/sequencing delay
      • Buck and boost current limit
      • Buck and boost pull-down when disabled
      • Individual ON, OFF, and stand-by modes
      • Soft-start and global power-good masking
    • 23µA buck typical quiescent current
    • 70µA boost typical quiescent current
    • 1.5% output accuracy over temperature/line/load
    • 2.0MHz boost switching frequency
    • 1.3MHz buck operation in continuous mode
    • Ultra-fast buck transient response
    • 12mm x 8.5mm x 1.25mm solution size (Top Layer)
    • Thermal-shutdown and current-limit protection
    • 36-pin 4.5mm x 4.5mm x 0.85mm FQFN package (0.4mm pitch)
    • -40°C to +125°C junction temperature range

Documents

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Data Sheets

Software Libraries/Firmware

Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
MIC7400/1 Programming Board
MIC7400/1 Programming Board ( ADM00760 )

MIC7400/1 Programming Board was designed to demonstrate the MIC7400/1 Power Management IC (PMIC) when programmed by a microcontroller, using an easy-to-understand interface. The board offers increased functionality by the addition of an on-board EEPROM and allows copy, store and also reprogram all the registers in the MIC7400/1 devices.

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MIC7401 5 buck 1 boost Progr Reg Eval Bd
MIC7401 5 buck 1 boost Progr Reg Eval Bd ( ADM00812 )

MIC7401 Evaluation Board was developed to evaluate the capabilities of the MIC7401 Power Management Integrated Circuit (PMIC). The board features 5 DC-DC buck converters capable of delivering 3A each and a boost converter with a 200mA current capability and I2C programmable output voltages.
The MIC7401 Evaluation Board also features the MCP2221 USB to I2C bridge that enables direct...

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC7401YFL-TR
0.827051
36
VQFN
4.5x4.5x0.9mm
Matte Tin
e3
MIC7401YFL-T5
0.827051
36
VQFN
4.5x4.5x0.9mm
Matte Tin
e3
MIC7401
0.000000
36
VQFN
4.5x4.5x0.9mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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