Switch Mode Power Supply 206-Pin MAP-BGA T/R

MC34708 is the PMIC designed specifically for use with the Freescale i.MX50 and i.MX53 processor families. It is available in a 8x8 and 13x13mm 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, 5V boost regulator for USB-OTG support , PWM generator, resistive touch screen interface, general purpose LED drivers and four GPIOs.

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
• 5V 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