Harman Kardon AVR 230, Руководство по обслуживанию

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NJU7223
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.
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FEATURES
●
High Precision Output Voltage
±
2%
●
High Output Current Io(max.)=500mA
●
Low Current Consumption 30
µ
A
●
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
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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 365/230V Service Manual
Page 73 of 176