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NJU7241 Series
High-Precision LDO 60mA C-MOS Voltage Regulator with Standby
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GENERAL DESCRIPTION
The NJU7241 series are high precision 2%, 60mA
output, C-MOS voltage regulators with standby function,
which contains internal accurate voltage reference, error
amplifier, control transistor, output voltage setting resistor,
short current protection circuit and standby circuit.
The fixed regulation voltages of internal circuits are as
following line-up.
The NJU7241 series packed MTP5 and suitable for
battery-operated items, battery back-up systems, and es-
pecially control block of cellular phone system because of
low operating current and low dropout voltage.
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PACKAGE OUTLINE
NJU7241F
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FEATURES
High Precision Output Voltage
Low Operating Current
Low Standby Current
Low Dropout Voltage
Ripple Rejection
Standby Function
2%
20
A typ.
0.1
A typ.
0.2V typ. V
OUT
=3V
55dB typ. @1kHz
Small Temperature Coefficient of Output Voltage
Wide Operating Voltage Range
Package Outline
C-MOS Technology
MTP-5
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OUTPUT VOLTAGE LINE-UP
Output
Voltage Type Output
Voltage Type
1.8V NJU7241F18 3.4V NJU7250F34
2.4V NJU7241F24 3.5V NJU7241F35
2.5V NJU7241F25 3.6V NJU7241F36
2.55V NJU7241F255 4.0V NJU7241F40
2.8V NJU7241F28 4.5V NJU7241F45
2.85V NJU7241F285 5.0V NJU7241F50
2.9V NJU7241F29 5.9V NJU7241F59
3.0V NJU7241F30 6.0V NJU7241F60
3.3V NJU7250F33
-
-
Planning Voltage: 2.4V, 3.5V, 3.6V, 4.0V and 6.0V
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TERMINAL DESCRIPTION
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PIN CONFIGURATION
No. Symbol
Function
1 GND
GND
2 V
IN
Input
3 V
OUT
Output
4 NC
None
Connection
5 STB
Standby: Internal Pull-down
H: Regulation
L: Standby, Output off
1 5
2
3 4
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NJU7241 Series
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MEASUREMENT CIRCUIT
Standard Test Circuit
Standby Input Voltage Test Circuit
Standby Input Current Test Circuit
Ripple Rejection Test Circuit
V
V
OUT
GND
V
IN
STB
V
C
IN
V
IN
RL
C
O
A
A
V
V
OUT
GND
V
IN
STB
V
C
IN
V
IN
C
O
A
V
STB
V
V
V
OUT
GND
V
IN
STB
V
C
IN
V
IN
C
O
~
V
V
OUT
GND
V
IN
STB
V
C
IN
V
IN
C
O
A
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.