L5988DTR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

L5988DTR

4 A continuous (more than 5 A pulsed) step-down switching regulator with synchronous rectification

STMicroelectronics 

L5988D

Application information

Figure 25. Bottom board layout

6.8

Application circuit

In Figure 26 is shown the demonstration board application circuit working.

The operating switching frequency is 400 kHz. The designed system bandwidth is 68 kHz

with a the phase margin of 50. The peak current limitation is set 5.2 A, the valley current

limitation 5.8 A in order to deliver up to 4 A DC to the load.

Figure 26. Demonstration board application circuit (fSW = 400 kHz)

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