R1204N, R1204K - Step-up DC/DC Converter

Nisshinbo

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R1204N Datasheet Preview — This datasheet PDF includes multiple part numbers: R1204N, R1204K. Please refer to the document for exact specifications by model.

Datasheet Details

Part number	R1204N, R1204K
Manufacturer	Nisshinbo
File Size	1.38 MB
Description	Step-up DC/DC Converter
Datasheet	R1204K-Nisshinbo.pdf
Note	This datasheet PDF includes multiple part numbers: R1204N, R1204K. Please refer to the document for exact specifications by model.

R1204N Product details

Description

Top View 654 Bottom View 456 R1204x No.EA-284-230530 6 5 4 (mark side) 123 321 DFN(PL)1820-6 Pin Configuration 1 2 3 TSOT-23-6 Pin Configuration DFN(PL)1820-6 Pin Description Pin No Symbol 1 VOUT 2 LX 3 GND 4 VIN 5 CE 6 VFB Description Output Pin Switching Pin, Open Drain Output Ground Pin Input Pin Chip Enable Pin, Active-high Feedback Pin The

Features

Input Voltage Range2.3 V to 5.5 V.
Supply Current Typ. 800 µA.
Standby Current Max. 5 µA.
Feedback Voltage 0.2 V ±10 mV (R1204xxxxA/D) 0.4 V ±10 mV (R1204xxxxG/H).
V ±15 mV (R1204xxxxB/C/E/F).
Lx Current Limit Function Min. 700 mA.
Over Voltage Protection 23 V, 33 V, 42 V.
Oscillator Frequency Typ. 1.0 MHz (R1204xxxxA/B/C/G) Typ. 750 kHz (R1204xxxxD/E/F/H).
Maximum Duty Cycle Min. 91% (R1204xxxxA/B/C/G) Min. 92% (R1204xxxxD/E/F/H).
FET ON Resist.

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Published: Aug 21, 2025 |