MC34708: Power Management for i.MX50/53 Processors

Overview

For new designs, NXP^® recommends using the MMPF0100 or MC34709

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 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.

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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
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

MoreLess

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
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