NJW1933 Datasheet, PDF (1/21 Pages) New Japan Radio – 600mA, 500kHz, Step-Down Switching Regulator in SOT-23

NJW1933-T
600mA, 500kHz, Step-Down Switching Regulator
in SOT-23
GENERAL DESCRIPTION
The NJW1933 is a switching regulator IC for buck converter that
operates wide input voltage range from 4.5V to 40V. The wide input
range makes the NJW1933 suitable for several applications such as
12V and/or 24V industrial supplies, automotive batteries and the other
unregulated voltage sources.
It corresponds to Low ESR output capacitor (MLCC), high
operating frequency of 500kHz, internally compensated and small
SOT-23 package. Therefore, the NJW1933 can realize downsizing of
applications with a few and tiny external parts so that adopts current
mode control.
Also, it has a soft start function, over current protection and thermal
shutdown circuit.
■ PACKAGE OUTLINE
NJW1933F1
FEATURES
● Pin compatible with LT1933 and LT2842. Also it is possible to reduce an external part
● Maximum Rating Input Voltage:
45V
● Wide Operating Voltage Range:
4.5 V to 40V
● Switching Current:
0.8A (min.)
● Fixed Operating Frequency:
500kHz (A-version)
● Uses Tiny Capacitors and Inductors
● Soft Start Function
● Low Shutdown Current 1 A
● Internally Compensated
● Under Voltage Lockout (UVLO)
● Output Adjustable Down to 1.25V
● Over Current Protection / Thermal Shutdown Protection
● Package Outline:
SOT-23-6-1
PIN CONFIGURATION
N.C. 1
GND 2
FB 3
6 SW
5 VIN
4 SHDN
NJW1933F1
Ver.2016-02-22
-1-