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R1242S Series
30 V Input 3 A Buck DC/DC Converter
NO.EA-191-190718
OUTLINE
The R1242S is a CMOS-based 30 V input, 3 A, synchronous rectified step-down DC/DC converter with builtin High-side switch. The R1242S contains Nch High-side Tr. (Typ. 0.1 Ω) and can supply maximum 3 A output current. In order to reduce heat generation caused by energy loss, FET can be used as Low-side switch. Lowside switch turns off when ICs shut down. The R1242S consists of the followings: an oscillator, a PWM control circuit, a voltage reference unit, an error amplifier, a phase compensation circuit, a slope control circuit, a softstart circuit, protection circuits, an internal regulator, a switch, and so on.
R1242S Datasheet
