NJU7222 Series
PRELIMINARY
HIGH PRECISION AND HIGH OUTPUT CURRENT
C-MOS 3-TERMINAL VOLTAGE REGULATOR
■ GENERAL DESCRIPTION
■ PACKAGE OUTLINE
The NJU7222 series is a high precision output voltage (±2%) and
high output current C-MOS 3-terminal positive voltage regulator
which contains internal accurate voltage reference, error amplifier,
control transistor, output voltage setting resistor and short current
protection circuit.
3
2
The regulation voltage is fixed by internal circuits and the following
line-up of different output voltage versions are available.
The short current protection circuit prevents destruction of a
element by careless great current output in short circuit.
The NJU7222 series is suitable for battery operated items and
battery back-up systems because of low operating current and low
dropout voltage.
1
3
2
1
NJU7222L2 (TO-92-L2)
NJU7222U (SOT-89)
■ FEATURES
■ TERMINAL DESCRIPTION
No.
1
2
3
Description
• High Precision Output Voltage ±2%
GND
Input
Output
• High Output Current
IO = 100mA
• Low Operating Current
• Low Dropout Voltage
20µA typ
∆VIO < 0.6V @IO = 100mA
• Wide Operating Voltage Range
• Small Temperature Coefficient of Output Voltage
• Short Current Protection Circuit
• Package Outline
TO-92-L2 / SOT-89
• C-MOS Technology
■ OUTPUT VOLTAGE LINE-UP
Output Voltage TO-92-L2 Type SOT-89 Type
+3.0V
+3.3V
+5.0V
NJU7222L230 NJU7222U30
NJU7222L233 NJU7222U33
NJU7222L250 NJU7222U50
Note1) The SOT-89 type name is different from the marking, so it refer to attached paper correspondence table.
■ EQUIVALENT CIRCUIT
Ver.2005-11-26
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