NJM2367

NJM2367 5.5A HIGH POWER DC/DC CONVERTER CONTROLLER IC sGENERAL DESCRIPTION The NJM2367 is a high power DC/DC converter controller inducing basic function of DC/DC converter controller, which consists precision reference voltage, fixed frequency oscillator, high gain error amplifier, precision output switch, cycle-by-cycle current limit, under voltage lockout, and thermal shutdown circuit. The NJM2367 is suitable for step-down converter with few external parts, and realize low power stand-by mode. sFEATURES qOperating Voltage (7.5V to 40V) qPWM form Switching Power Supply Control qInternal High Power Transistor 5.5A (min.) qFixed Frequency Oscillator 72kHz (typ.) qInternal Current Sense Amplifier qInternal Under Voltage Lockout qInternal Thermal Shutdown Circuit qBipolar Technology qPackage Outline TO-22O(5PIN) sPACKAGE OUTLINE 12345 NJM2367TA2050 NJM2367TLA2050 PIN FUNCTION 1:VFB 2:SW OUT 3:GND 4:V+ 5:STBY (VCOMP) sBLOCK DIAGRAM 5.5A Power Transistor Current Sense Amplifier Current Circh Transistor 4 2 Thermal Shutdown Reference Voltage ON/OFF VREF Oscillator S R Ratch Circuit Q Under Voltage Lockout Standby Circuit PWM Comparator VREF 1 Error Amplifier 5 3 Ver 2.1 - 1 - NJM2367 sABSOLUTE MAXIMUM RATINGS (Ta=25°C ) PARAMETER SYMBOL Maximum Supply Voltage V+ Switch Output Voltage Vo (SWITCH) Voltage Feedback and VFB,VCOMP Compensation Input Voltage Range Power Dissipation PD Operating Junction Temperature Operating Temperature Range Storage Temperature Range Tj T...