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MCZ34702 - 3.0A Switch-Mode Power Supply

General Description

A functional description of each pin can be found in the Functional Pin Description section beginning on page 16.

Pin 1 Pin Name FREQ Formal Name Oscillator Frequency Definition This switcher frequency selection pin can be adjusted by connecting external resistor RF to the FREQ pin.

Key Features

  • and to allow space-efficient, compact design. The 34702 incorporates many advanced features; e. g. , precisely maintained up/down power sequencing, ensuring the proper operation and protection of the CPU and power system. Features.
  • Operating voltage from 2.8V to 6.0V High-accuracy output voltages Fast transient response Switcher output current up to 3.0A Under-voltage lockout and over-current protection Enable.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Freescale Semiconductor Technical Data Document Number: MC34702 Rev 7.0, 8/2007 3.0A Switch-Mode Power Supply with Linear Regulator The 34702 provides the means to efficiently supply the Freescale Power QUICC™ I, II, and other families of Freescale microprocessors and DSPs. The 34702 incorporates a high performance switching regulator, providing the direct supply for the microprocessor’s core, and a low dropout (LDO) linear regulator control circuit providing the microprocessor I/O and bus voltage. The switching regulator is a high efficiency synchronous buck regulator with integrated N-channel power MOSFETs to provide protection features and to allow space-efficient, compact design. The 34702 incorporates many advanced features; e.g.