NJM2345
PWM DC/DC Converter IC with Standby Function
■GENERAL DESCRIPTION
The NJM2345 is a step down PWM DC/DC converter IC.
An internal 1.
5A power
transistor, a pulse-by pulse current limit circuit and a 1% precision reference make the NJM2345 suitable for a wide range of voltage converter needs.
The NJM2345 features a standby function that can be used for both power saving and safety operation.
■PACKAGE OUTLINE
NJM2345D
NJM2345M
■FEATURES ● Operating Voltage 3.
0V to 40V ● Wide Oscillator Frequency 1kHz to 150kHz •Maximum duty ratio 100% •Precision Reference Voltage Vth=1.
25V ± 1% ● Internal High Power
Transistor 1.
5A max.
● Internal Over Current Limit Circuit ● PWM switching control ● ...