Power Management for i.MX50/53 Processors

MC34708
  • Not Recommended for New Designs
  • This page contains information on a product that is not recommended for new designs.

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MC34708 is the PMIC designed specifically for use with the NXP i.MX50 and i.MX53 processor families (Mature processors). It is available in a 8 x 8 and 13 x 13 mm MAPBGA and supports an ambient operating temperature range of -40 to 85 deg. C for various consumer applications. As the companion PMIC on several i.MX reference designs, it is a proven solution, which enables a faster time to market with fewer resources. It integrates six buck and eight LDO regulators to provide power for the processor core, memory and peripherals. A mini/micro USB switch supports USB, UART and audio inputs to help reduce the connector count for a more compact design. In addition, the MC34708 integrates a real-time clock, coin cell charger, 10-bit ADC, 5 V boost regulator for USB-OTG support, PWM generator, resistive touch screen interface, general purpose LED drivers and four GPIOs.

Product Details

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Block Diagram

MC34708

MC34708 Block Diagram
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Features

Power Generation

  • Six Buck switching regulators
    • Two single/dual phase buck regulators
    • Four single phase buck regulators
    • PFM/ APS/ PWM/ PWMPS operation modes
    • Dynamic voltage scaling
  • 5 V Boost switching regulators
    • USB On the go support
  • Eight LDO Regulators
    • Two with selectable internal or external pass devices
    • Five with embedded pass devices
    • One with external PNP pass device

Analog to Digital Converter

  • Seven general purpose channels
  • Internal dedicated channels
  • Resistive touchscreen interface

Auxiliary Circuits

  • Mini/Micro USB switch
    • Bidirectional Audio/Data/UART
    • Accessory identification circuit
  • General purpose I/Os
  • PWM outputs
  • Two general purpose LED drivers

Clocking and Oscillators

  • Real Time Clock
    • Time and day counters
    • Time of day alarm
  • 32.768 kHz crystal oscillator
  • Coin cell battery backup and charger

Serial interface

  • SPI
  • I2C

Product Longevity Program

  • This product is included in the NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The MC34708 is included in the 10-year program

Documentation

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Hardware

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