Synchronous Rectification, DC-DC Converter, Programmable Integrated Controller

Obsolete

Overview

The MC33470 is a digitally programmable switching voltage regulator, specifically designed for Microprocessor supply, Voltage Regulator Module and general purpose applications, to provide a high power regulated output voltage using a minimum of external parts. A 5–bit digital–to–analog converter defines the dc output voltage.

This product has three additional features. The first is a pair of high speed comparators which monitor the output voltage and expedite the circuit response to load current changes. The second feature is a soft start circuit which establishes a controlled response when input power is applied and when recovering from external circuit fault conditions. The third feature is two output drivers which provide synchronousrectification for optimum efficiency.

This product is ideally suited for computer, consumer, and industrial equipment where accuracy, efficiency and optimum regulation performance is desirable.

  • 5-Bit Digital-to-Analog Converter Allows Digital Control of Output Voltage
  • High Speed Response to Transient Load Conditions
  • Output Enable Pin Provides On/Off Control
  • Programmable Soft Start Control
  • High Current Output Drives for Synchronous Rectification
  • Internally Trimmed Reference with Low Temperature Coefficient
  • Programmable Overcurrent Protection
  • Overvoltage Fault Indication
  • Functionally Similar to the LTC1553
  • Pb-Free Packages are Available

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CAD Models

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VCC Min (V)

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Reference Price

MC33470DW

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Obsolete

CAD Model

Pb

A

H

P

SOIC-20W

1

235

TUBE

38

N

-

1

-

4.5

5.5

300

Price N/A

More Details

MC33470DWG

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Obsolete

CAD Model

Pb

A

H

P

SOIC-20W

3

260

TUBE

38

N

-

1

-

4.5

5.5

300

Price N/A

More Details

MC33470DWR2

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Obsolete

CAD Model

Pb

A

H

P

SOIC-20W

1

235

REEL

1000

N

-

1

-

4.5

5.5

300

Price N/A

More Details

MC33470DWR2G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-20W

3

260

REEL

1000

N

-

1

-

4.5

5.5

300

Price N/A

More Details

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