NJM2367
5.5A HIGH POWER DC/DC CONVERTER CONTROLLER IC
sGENERAL DESCRIPTION
The NJM2367 is a high power DC/DC converter...
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
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NJM2367TA2050 NJM2367TLA2050
PIN FUNCTION 1:VFB 2:SWOUT 3:GND 4:V+ 5:STBY (VCOMP)
sBLOCK DIAGRAM
4
5.5A Power
Transistor
Current Sense Amplifier
Current Circh
Transistor
2
Thermal Shutdown
Reference Voltage
Oscillator
SQ
ON/OFF VREF Under Voltage Lockout Standby Circuit
PWM Comparator
R Ratch Circuit
VREF Error Amplifier
53
1
Ver 2.1 - 1 -
NJM2367
sABSOLUTE MAXIMUM RATINGS (Ta=25°C )
PARAMETER
Maximum Supply Voltage Switch Output Voltage Voltage Feedback and Compensation Input Voltage Range Power Dissipation
SYMBOL V+
Vo (SWITCH)
VFB,VCOMP
PD
Operating Junction Temperature Operating Temperature Range Storage Tem...
