Step-down DC/DC converter | Nexperia

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Step-down DC/DC converter

This circuit converts 12 V from the car battery to 5 V. It can be used to drive low power units such as the dashboard cluster.

Block diagram
Design considerations
Product listing
Support

Block diagram

Highlighted components are Nexperia focus products.

Transient Voltage Suppressors (TVS)

Recommended products (1)

400-600 W

ESD bus protection

Recommended products (1)

CAN / LIN

Reverse battery protection

Recommended products (1)

N-channel, 40 V, RDSon < 10mΩ, LFPAK

Schottky diodes

Recommended products (1)

≤ 250 mA, SOD523 / DFN1006-2

MOSFET

Recommended products (2)

Schottky diodes

Recommended products (1)

≤ 250 mA, SOD523 / DFN1006-2

Select a component

To view more information about the Nexperia components used in this application, please select a component above or click on a component (highlighted in blue) in the block diagram.

Design considerations

Point of load non-isolated DC.DC
Asynchronous buck converter circuit
Economical, two-MOSFET design
Standard efficiency
Step-down of voltage while stepping up current
Flexibility to replace MOSFET diode pair with LFPAK56D dual or LFPAK56D half-bridge MOSFET

Product listing

Transient Voltage Suppressors (TVS)

400-600 W

ESD bus protection

CAN / LIN

Reverse battery protection

N-channel, 40 V, RDSon < 10mΩ, LFPAK

Schottky diodes

≤ 250 mA, SOD523 / DFN1006-2

MOSFET

Schottky diodes

≤ 250 mA, SOD523 / DFN1006-2

Support

Design handbooks

Boards

Documentation and videos