R1242S - 30V Input 3A Buck DC/DC Converter

Product Overview

Nisshinbo

Datasheet Details

Part number	R1242S
Manufacturer	Nisshinbo
File Size	1.29 MB
Description	30V Input 3A Buck DC/DC Converter
Datasheet	R1242S Datasheet
Additional preview pages of the R1242S datasheet.

Product details

Description

Top View 1 8 2 7 R1242 3 6 4 5 HSOP-8E Pin Configuration R1242S001A/B Pin Description Pin No.Symbol Description 1 CE Chip Enable Pin, Active with “H” 2 EXT Gete Drive Pin 3 BST Bootstrap Pin 4 VIN Power Supply Pin 5 Lx L

Features

Supply Current Typ. 0.8 mA (VIN = 30 V, Set VFB = 1.0 V).
Standby Current Typ. 0 µA (VIN = 30 V, CE = L).
Input Voltage Range 5 V to 30 V.
Output Voltage Range 0.8 V to 15 V, Adjustable using external resistors.
Feed Back Voltage Accuracy 0.8 V with 1.5% accuracy.
Output Current 3 A.
Oscillator Frequency 330 kHz to 1 MHz (Ver. A/B), 330 kHz (Ver. C/D), 500 kHz, (Ver. E/F), 1000 kHz (Ver. G/H).
Maximum Duty Cycle Typ. 88%.
UVLO Detector Thresh.

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Published: Aug 21, 2025 |