Multi-Channel Power Management IC (PMIC)

MC34704

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The MC34704 is a multi-channel power management IC (PMIC) used to address power management needs for various multimedia application microprocessors.

  • Ideal for portable devices powered up by Li-Ion/polymer batteries or for USB powered devices
  • Provides either 5 or 8 independent output voltages with a single input power supply (2.7 and 5.5 V)
  • Small packaging and the ability to operate at a switching frequency of up to 2 MHz makes it possible to reduce external component size and implement full space efficient power management solutions

Product Details

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Block Diagram

Freescale MC13892 PMIC

MC34704 Block Diagram
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Features

System Features

  • 8 DC/DC (34704A) or 5 DC/DC (34704B) switching regulators with up to ±2% output voltage accuracy
  • Dynamic voltage scaling on all regulators.
  • Selectable voltage mode control or current mode control on REG8
  • I2C programmability
  • Output under-voltage and over-voltage detection for each regulator
  • Over-current limit detection and short-circuit protection for each regulator
  • Thermal limit detection for each regulator, except REG7
  • Integrated compensation for REG1, REG3, REG6 and REG8
  • 5 µA maximum shutdown current (All regulators are off, 5.5 V VIN)
  • True cutoff on all of the boost and buck-boost regulators
  • 5 to 8 buck regulators
  • i.MX35, i.MX37 and i.MX51 MCU supported
  • I2C interface and input control
  • Output current 0.5 A

Documentation

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Hardware

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