R1243S, R1243K - 30V Input 2A Buck DC/DC Converter

Nisshinbo

Datasheet Details

Part number: R1243S, R1243K
Manufacturer: Nisshinbo
File Size: 1.14 MB
Datasheet: R1243K-Nisshinbo.pdf
Description: 30V Input 2A Buck DC/DC Converter
Note: This datasheet PDF includes multiple part numbers: R1243S, R1243K.
Please refer to the document for exact specifications by model.

The R1243x001A/C/E has a latch protection with 2 ms delay time, the R1243x001B/D has a fold-back protection that keep operating during short condition with lower operating frequency and limiting the LX current. The R1243x has a built-in soft-start time (Typ. 0.4 ms). In addition to this, the soft-start time is adjustable by adding an external capacitor. The R1243x has the FLG pin, which mainly monitors the FB pin voltage and gives a flag output by the Nch open drain if the abnormal condition is.

📁 R1243S Similar Datasheet

Other Datasheets by Nisshinbo

Published: Aug 20, 2025 |