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1 kW DC/DC Converter 48 V DC to 12 V DC

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As dual board net systems (vehicles with both a 12 V and 48 V bus) increase in popularity, high power, bidirectional 48 V to 12 V DC/DC converters have become key building blocks in the architecture of today’s automobiles.

This 1 kW, 48 V / 12 V buck-boost converter features two modular power stages capable of 500 W each. The converter can automatically switch between Buck and Boost operation while its switching frequency of 185 kHz leads to a compact form factor.

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As dual board net systems (vehicles with both a 12 V and 48 V bus) increase in popularity, high power, bidirectional 48 V to 12 V DC/DC converters have become key building blocks in the architecture of today’s automobiles.

This 1 kW, 48 V / 12 V buck-boost converter features two modular power stages capable of 500 W each. The converter can automatically switch between Buck and Boost operation while its switching frequency of 185 kHz leads to a compact form factor.

Reference Design Files

Reference Board

Datasheet

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Principle Diagram

1 kW DC/DC Converter 48 V DC to 12 V DC

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Features

2-phase interleaved operation

Automatic buck and boost selection

Voltage and current regulation

Inrush current control

Overvoltage protection

Overcurrent protection

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