AVR 265 (serv.man5) - Harman Kardon Audio Service Manual (repair manual). Page 115

 

 

500mA Low Dropout Voltage Regulator 

■ GENERAL DESCRIPTION 

■ PACKAGE OUTLINE 

  The NJU7223 series is a high precision output voltage, 

low drop output, low current consumption and high output 
current 3-terminal positive voltage regulator with a over 
current protection and a thermal shutdown. 

Low dropout voltage is realized at high current output. 

 

■ FEATURES 

●High Precision Output Voltage    ±2% 
●High Output Current 

 

Io(max.)=500mA 

●Low Current Consumption 

30

µA 

●Low Dropout Voltage 

∆V

IO

=0.4V typ. (Io=0.5A,Vo=5V) 

●Internal Over Current Protection 
●Internal Thermal Shutdown Protection 
●Package Outline 

 

TO-220F, TO-252 

●C-MOS Technology 

 
■ OUTPUT VOLTAGE LINE-UP 

V

OUT

 TO-220F 

TO-252 

+1.8V NJU7223F18 

NJU7223DL1-18 

+2.5V NJU7223F25 

NJU7223DL1-25 

+3.0V NJU7223F30 

NJU7223DL1-30 

+3.3V NJU7223F33 

NJU7223DL1-33 

+5.0V NJU7223F50 

NJU7223DL1-50 

 
 
■ EQUIVALENT CIRCUIT 
 

 

V

OUT

 

GND

V

IN

 

Over Current Protection 

GND 

V

REF

 

Thermal shutdown 

Protection 

               

 

 
NJM7223F NJU7223DL1 
 

1.V

OUT

                 

2.V

IN

     

3.GND      

2 

1

3 

1 2 3

Harman Kardon

AVR 265/230V Service Manual

Page 115 of 168