The L4975A is a stepdown monolithic power switching regulator delivering 5A at a voltage vari- able from 5.1 to 40V. Realized with BCD mixed technology, the device uses a DMOS output transistor to obtain very high efficiency and very fast switching times. Features of the L4975A include reset and power fail for mi- croprocessors, feed forward line regulation, soft start, limiting current and thermal protection. The device is mounted in a 15-lead multiwatt plastic power package and requires few external compo- nents. Efficient operation at switching frequencies up to 500KHz allows reduction in the size and cost of external filter components.
The L4975A is a stepdown monolithic power switching regulator delivering 5A at an output voltage variable from 5.1V to 40V. Realized with BCD mixed technology, the device uses a DMOS output transistor to obtain very high efficiency and very fast switching times. It features reset and power fail for microprocessors, feed forward line regulation, soft start, limiting current, and thermal protection. The device is mounted in a 15-lead multiwatt plastic power package and requires few external components.
| Output Current | 5A |
|---|---|
| Output Voltage Range | 5.1V to 40V |
| Duty Cycle Range | 0 to 90% |
| Reference Voltage | 5.1V + 2% |
| Switching Frequency | Up to 500kHz |
| Maximum Input Voltage | 55V |
| Total Power Dissipation | 30W |
| Package | 15-lead multiwatt plastic power package |
The output voltage is adjustable from 5.1V to 40V.
The device delivers 5A of output current.
The switching frequency can reach up to 500kHz.
Yes, it includes thermal shutdown protection.