Performance characteristics
Operating voltage range (3.0V～40V)
Wide oscillation frequency (1kHz～150kHz)
Maximum duty cycle (100%)
High precision standard voltage (Vth＝1.25V±1%)
Built-in overcurrent detection circuit
PWM form of switching power supply control
Standby function (9µA typ.)
Bipolar technology
Package (NJM2345D: DIP8
NJM2345M: DMP8)
summary
NJM2345 is a step-down DC/DC converter IC that can operate at low voltage. The maximum duty cycle can be set to 100%, so even if the voltage difference between input and output is small, the output voltage can be easily maintained The stability. In addition, it has a standby function, which makes it easier to achieve power sequence control and energy saving during standby. In addition, a 1.5A power transistor is built-in. The built-in pulse-by-pulse current limit circuit can be arbitrarily set with external resistors.
