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NB634

High Efficiency 5A, 24V, 500kHz Synchronous Step-down Converter

NRFND Datasheet

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NB634

NB634

NOT RECOMMENDED FOR NEW DESIGNS

High Efficiency 5A, 24V, 500kHz Synchronous Step-down Converter

NRFND Datasheet

Description

The NB634 is a high efficiency synchronous rectified step-down switch mode converter with built-in internal power MOSFETs. It offers a very compact solution to achieve 5A continuous output current over a wide input supply range with excellent load and line regulation. The NB634 operates at high efficiency over a wide output current load range. Current mode operation provides fast transient response and eases loop stabilization. Full protection features include latch-off OCP and thermal shut down. The NB634 requires a minimum number of readily available standard external components and is available in a space saving QFN14 (3mm x 4mm) package.

Features & Benefits

Wide 4.5V to 24V Operating Input Range
5A Output Current
Low RDS(ON) Internal Power MOSFETs
Proprietary Switching Loss Reduction Technique
Fixed 500kHz Switching Frequency
Sync from 300kHz to 2MHz External Clock
Internal Compensation
Latch-off OCP Protection and Thermal Shutdown
Output Adjustable from 0.8V
Available in a QFN14 (3mmx4mm) Package

Active Part Numbers:

NB634EL-LF-P NB634EL-LF-Z

Meaning of P & Z

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*Based on Nominal Values

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