NJM2367 Datasheet, PDF (1/7 Pages) New Japan Radio – 5.5A HIGH POWER DC/DC CONVERTER CONTROLLER IC

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:V_FB
2:SW_OUT
3:GND
4:V⁺
5:STBY (V_COMP)
sBLOCK DIAGRAM
4
5.5A Power Transistor
2
Current Sense
Amplifier
Current Circh Transistor
Thermal
Shutdown
Reference
Voltage
Oscillator
SQ
ON/OFF VREF
R
Under Voltage
Lockout
PWM Comparator
Ratch Circuit
VREF
Standby Circuit
1
Error Amplifier
5
3
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