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NJU7241 Series
High-Preci si on LDO 60mA C-MOS Voltage Regulator with Standby
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■ GENERAL DESCRIPTIO N
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 curr ent pr otection 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 curr ent and low dropout voltage.
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■ PACKAGE OUTLINE
NJU7241F
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■ FEATURES
• High Precision Ou t put Voltage
• Low Operating Curr ent
• Low Standby Current
• Low Dropout Voltag e
• Ripple Rejection
• Standby Function
±2%
20µA typ.
0.1µA typ.
0.2V typ. VOUT=3V
55dB typ. @1kHz
• Small Temperature Coefficient of Output Voltage
• Wide O per at ing Volt age 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 Volt age: 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 VIN Input
3 VOUT Output
4 NC None Connection
5 STB
Standby: Int er nal Pull- down
H: Regulation
L: Standby, Output off
1 5
2
3 4
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NJU7241 Series
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■ EQUIVALENT CIRCUIT
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■ ABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
Parameter Symbol Ratings Unit
Input Voltage VIN 15 V
Input Voltage VSTB GND-0.3 ∼ VIN+0.3 V
Output Voltage VOUT GND-0.3 ∼ VIN+0.3 V
Output Current IOUT 120 mA
Power Dissipation PD 200 mW
Operating Temperature Topr -40 ∼ +85 °C
Storag e Temperature Tst g -40 ∼ +125 °C
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■ ELECTRICAL CHARACTERISTICS
•VO=1.8V (C
IN=0.1µF, CO=10µF, Ta=25°C)
Parameter Symbol Condition MIN. TYP. MAX. Unit
Output Voltage VO VIN=2.8V, IO=30mA 1.764 1.800 1.836 V
Dropout Vo lt age ∆VIO IO=15mA 0.2 0.3
V
Input Voltage VIN 14 V
Operating Current IDD1 VIN=2.8V, VSTB=VIN, No Load 20 40 µA
Standby Current IDD2 VIN=2.8V, VSTB=GND 0.1 1.0
µA
Input Curr ent ISTB V
IN=2.8V, VSTB=VIN 0.56 1.12
µA
Load Regulation ∆VO/∆IO VIN=2.8V, 1mA≦IO≦60mA 200 300 mV
Line Regulation ∆VO/∆VIN V
IN=2.8V∼12V 0.10 %/V
Ripple Rejection RR VIN=2.8V, ein=0. 5Vp-p, 1k Hz 55 dB
H Level Input Volt age VSTBH 1.5 VIN V
L Level Input Voltage VSTBL 0 0.25 V
•VO=2.4V (C
IN=0.1µF, CO=10µF, Ta=25°C)
Parameter Symbol Condition MIN. TYP. MAX. Unit
Output Voltage VO VIN=3.4V, IO=30mA 2.352 2.400 2.448 V
Dropout Vo lt age ∆VIO IO=30mA 0.2 0.3
V
Input Voltage VIN 14 V
Operating Current IDD1 VIN=3.4V, VSTB=VIN, No Load 20 40 µA
Standby Current IDD2 VIN=3.4V, VSTB=GND 0.1 1.0
µA
Input Curr ent ISTB V
IN=3.4V, VSTB=VIN 0.9 1.8
µA
Load Regulation ∆VO/∆IO VIN=3.4V, 1mA≦IO≦60mA 200 300 mV
Line Regulation ∆VO/∆VIN V
IN=3.4V∼12V 0.10 %/V
Ripple Rejection RR VIN=3.4V, ein=0. 5Vp-p, 1k Hz 55 dB
H Level Input Volt age VSTBH 1.5 VIN V
L Level Input Voltage VSTBL 0 0.25 V
1
23
V
IN
V
OUT
GND GND
+
-
V
REF
5STB
Short Current
Protection Circuit
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•VO=2.5V (C
IN=0.1µF, CO=10µF, Ta=25°C)
Parameter Symbol Condition MIN. TYP. MAX. Unit
Output Voltage VO VIN=3.5V, IO=30mA 2.450 2.500 2.550 V
Dropout Vo lt age ∆VIO IO=50mA 0.2 0.3
V
Input Voltage VIN 14 V
Operating Current IDD1 VIN=3.5V, VSTB=VIN, No Load 20 40 µA
Standby Current IDD2 VIN=3.5V, VSTB=GND 0.1 1.0
µA
Input Curr ent ISTB V
IN=3.5V, VSTB=VIN 1.0 2.0
µA
Load Regulation ∆VO/∆IO VIN=3.5V, 1mA≦IO≦60mA 35 120 mV
Line Regulation ∆VO/∆VIN V
IN=3.5V∼12V 0.10 %/V
Ripple Rejection RR VIN=3.5V, ein=0. 5Vp-p, 1k Hz 55 dB
H Level Input Volt age VSTBH 1.5 VIN V
L Level Input Voltage VSTBL 0 0.25 V
•VO=2.55V (C
IN=0.1µF, CO=10µF, Ta=25°C)
Parameter Symbol Condition MIN. TYP. MAX. Unit
Output Voltage VO VIN=3.55V, I O=30mA 2.499 2.550 2.601 V
Dropout Vo lt age ∆VIO IO=50mA 0.2 0.3
V
Input Voltage VIN 14 V
Operating Current IDD1 VIN=3.55V, VSTB=VIN, No Load 20 40 µA
Standby Current IDD2 VIN=3.55V, VSTB=GND 0.1 1.0
µA
Input Curr ent ISTB V
IN=3.55V, VSTB=VIN 1.05 2.1
µA
Load Regulation ∆VO/∆IO VIN=3.55V, 1mA≦IO≦60mA 35 120 mV
Line Regulation ∆VO/∆VIN V
IN=3.55V∼12V 0.10 %/V
Ripple Rejection RR VIN=3.55V, ein=0. 5Vp-p, 1kHz 55 dB
H Level Input Volt age VSTBH 1.5 VIN V
L Level Input Voltage VSTBL 0 0.25 V
•VO=2.8V (C
IN=0.1µF, CO=10µF, Ta=25°C)
Parameter Symbol Condition MIN. TYP. MAX. Unit
Output Voltage VO VIN=3.8V, IO=30mA 2.744 2.800 2.856 V
Dropout Vo lt age ∆VIO IO=50mA 0.2 0.3
V
Input Voltage VIN 14 V
Operating Current IDD1 VIN=3.8V, VSTB=VIN, No Load 20 40 µA
Standby Current IDD2 VIN=3.8V, VSTB=GND 0.1 1.0
µA
Input Curr ent ISTB V
IN=3.8V, VSTB=VIN 1.3 2.6
µA
Load Regulation ∆VO/∆IO VIN=3.8V, 1mA≦IO≦60mA 35 120 mV
Line Regulation ∆VO/∆VIN V
IN=3.8V∼12V 0.10 %/V
Ripple Rejection RR VIN=3.8V, ein=0. 5Vp-p, 1k Hz 55 dB
H Level Input Volt age VSTBH 1.5 VIN V
L Level Input Voltage VSTBL 0 0.25 V
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•VO=2.85V (C
IN=0.1µF, CO=10µF, Ta=25°C)
Parameter Symbol Condition MIN. TYP. MAX. Unit
Output Voltage VO VIN=3.85V, I O=30mA 2.793 2.850 2.907 V
Dropout Vo lt age ∆VIO IO=50mA 0.2 0.3
V
Input Voltage VIN 14 V
Operating Current IDD1 VIN=3.85V, VSTB=VIN, No Load 20 40 µA
Standby Current IDD2 VIN=3.85V, VSTB=GND 0.1 1.0
µA
Input Curr ent ISTB V
IN=3.85V, VSTB=VIN 1.35 2.70
µA
Load Regulation ∆VO/∆IO VIN=3.85V, 1mA≦IO≦60mA 35 120 mV
Line Regulation ∆VO/∆VIN V
IN=3.85V∼12V 0.10 %/V
Ripple Rejection RR VIN=3.85V, ein=0. 5Vp-p, 1kHz 55 dB
H Level Input Volt age VSTBH 1.5 VIN V
L Level Input Voltage VSTBL 0 0.25 V
•VO=2.9V (C
IN=0.1µF, CO=10µF, Ta=25°C)
Parameter Symbol Condition MIN. TYP. MAX. Unit
Output Voltage VO VIN=3.9V, IO=30mA 2.842 2.900 2.958 V
Dropout Vo lt age ∆VIO IO=50mA 0.2 0.3
V
Input Voltage VIN 14 V
Operating Current IDD1 VIN=3.9V, VSTB=VIN, No Load 20 40 µA
Standby Current IDD2 VIN=3.9V, VSTB=GND 0.1 1.0
µA
Input Curr ent ISTB V
IN=3.9V, VSTB=VIN 1.4 2.8
µA
Load Regulation ∆VO/∆IO VIN=3.9V, 1mA≦IO≦60mA 35 120 mV
Line Regulation ∆VO/∆VIN V
IN=3.9V∼12V 0.10 %/V
Ripple Rejection RR VIN=3.9V, ein=0. 5Vp-p, 1k Hz 55 dB
H Level Input Volt age VSTBH 1.5 VIN V
L Level Input Voltage VSTBL 0 0.25 V
•VO=3.0V (C
IN=0.1µF, CO=10µF, Ta=25°C)
Parameter Symbol Condition MIN. TYP. MAX. Unit
Output Voltage VO VIN=4.0V, IO=30mA 2.940 3.000 3.060 V
Dropout Vo lt age ∆VIO IO=60mA 0.2 0.3
V
Input Voltage VIN 14 V
Operating Current IDD1 VIN=4.0V, VSTB=VIN, No Load 20 40 µA
Standby Current IDD2 VIN=4.0V, VSTB=GND 0.1 1.0
µA
Input Curr ent ISTB V
IN=4.0V, VSTB=VIN 1.5 3.0
µA
Load Regulation ∆VO/∆IO VIN=4.0V, 1mA≦IO≦60mA 35 120 mV
Line Regulation ∆VO/∆VIN V
IN=4.0V∼12V 0.10 %/V
Ripple Rejection RR VIN=4.0V, ein=0. 5Vp-p, 1k Hz 55 dB
H Level Input Volt age VSTBH 1.5 VIN V
L Level Input Voltage VSTBL 0 0.25 V
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•VO=3.3V (C
IN=0.1µF, CO=10µF, Ta=25°C)
Parameter Symbol Condition MIN. TYP. MAX. Unit
Output Voltage VO VIN=4.3V, IO=30mA 3.234 3.300 3.366 V
Dropout Vo lt age ∆VIO IO=60mA 0.2 0.3
V
Input Voltage VIN 14 V
Operating Current IDD1 VIN=4.3V, VSTB=VIN, No Load 20 40 µA
Standby Current IDD2 VIN=4.3V, VSTB=GND 0.1 1.0
µA
Input Curr ent ISTB V
IN=4.3V, VSTB=VIN 1.8 3.6
µA
Load Regulation ∆VO/∆IO VIN=4.3V, 1mA≦IO≦60mA 35 120 mV
Line Regulation ∆VO/∆VIN V
IN=4.3V∼12V 0.10 %/V
Ripple Rejection RR VIN=4.3V, ein=0. 5Vp-p, 1k Hz 55 dB
H Level Input Volt age VSTBH 1.5 VIN V
L Level Input Voltage VSTBL 0 0.25 V
•VO=3.4V (C
IN=0.1µF, CO=10µF, Ta=25°C)
Parameter Symbol Condition MIN. TYP. MAX. Unit
Output Voltage VO VIN=4.4V, IO=30mA 3.332 3.400 3.468 V
Dropout Vo lt age ∆VIO IO=60mA 0.2 0.3
V
Input Voltage VIN 14 V
Operating Current IDD1 VIN=4.4V, VSTB=VIN, No Load 20 40 µA
Standby Current IDD2 VIN=4.4V, VSTB=GND 0.1 1.0
µA
Input Curr ent ISTB V
IN=4.4V, VSTB=VIN 1.9 3.8
µA
Load Regulation ∆VO/∆IO VIN=4.4V, 1mA≦IO≦60mA 35 120 mV
Line Regulation ∆VO/∆VIN V
IN=4.4V∼12V 0.10 %/V
Ripple Rejection RR VIN=4.4V, ein=0. 5Vp-p, 1k Hz 55 dB
H Level Input Volt age VSTBH 1.5 VIN V
L Level Input Voltage VSTBL 0 0.25 V
•VO=3.5V (C
IN=0.1µF, CO=10µF, Ta=25°C)
Parameter Symbol Condition MIN. TYP. MAX. Unit
Output Voltage VO VIN=4.5V, IO=30mA 3.430 3.500 3.570 V
Dropout Vo lt age ∆VIO IO=60mA 0.2 0.3
V
Input Voltage VIN 14 V
Operating Current IDD1 VIN=4.5V, VSTB=VIN, No Load 20 40 µA
Standby Current IDD2 VIN=4.5V, VSTB=GND 0.1 1.0
µA
Input Curr ent ISTB V
IN=4.5V, VSTB=VIN 2.0 4.0
µA
Load Regulation ∆VO/∆IO VIN=4.5V, 1mA≦IO≦60mA 35 120 mV
Line Regulation ∆VO/∆VIN V
IN=4.5V∼12V 0.10 %/V
Ripple Rejection RR VIN=4.5V, ein=0. 5Vp-p, 1k Hz 55 dB
H Level Input Volt age VSTBH 1.5 VIN V
L Level Input Voltage VSTBL 0 0.25 V
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•VO=3.6V (C
IN=0.1µF, CO=10µF, Ta=25°C)
Parameter Symbol Condition MIN. TYP. MAX. Unit
Output Voltage VO VIN=4.6V, IO=30mA 3.528 3.600 3.672 V
Dropout Vo lt age ∆VIO IO=60mA 0.2 0.3
V
Input Voltage VIN 14 V
Operating Current IDD1 VIN=4.6V, VSTB=VIN, No Load 20 40 µA
Standby Current IDD2 VIN=4.6V, VSTB=GND 0.1 1.0
µA
Input Curr ent ISTB V
IN=4.6V, VSTB=VIN 2.1 4.2
µA
Load Regulation ∆VO/∆IO VIN=4.6V, 1mA≦IO≦60mA 35 120 mV
Line Regulation ∆VO/∆VIN V
IN=4.6V∼12V 0.10 %/V
Ripple Rejection RR VIN=4.6V, ein=0. 5Vp-p, 1k Hz 55 dB
H Level Input Volt age VSTBH 1.5 VIN V
L Level Input Voltage VSTBL 0 0.25 V
•VO=4.0V (C
IN=0.1µF, CO=10µF, Ta=25°C)
Parameter Symbol Condition MIN. TYP. MAX. Unit
Output Voltage VO VIN=5.0V, IO=30mA 3.920 4.000 4.080 V
Dropout Vo lt age ∆VIO IO=60mA 0.2 0.3
V
Input Voltage VIN 14 V
Operating Current IDD1 VIN=5.0V, VSTB=VIN, No Load 20 40 µA
Standby Current IDD2 VIN=5.0V, VSTB=GND 0.1 1.0
µA
Input Curr ent ISTB V
IN=5.0V, VSTB=VIN 2.5 5.0
µA
Load Regulation ∆VO/∆IO VIN=5.0V, 1mA≦IO≦60mA 35 120 mV
Line Regulation ∆VO/∆VIN V
IN=5.0V∼12V 0.10 %/V
Ripple Rejection RR VIN=5.0V, ein=0. 5Vp-p, 1k Hz 55 dB
H Level Input Volt age VSTBH 1.5 VIN V
L Level Input Voltage VSTBL 0 0.25 V
•VO=4.5V (C
IN=0.1µF, CO=10µF, Ta=25°C)
Parameter Symbol Condition MIN. TYP. MAX. Unit
Output Voltage VO VIN=5.5V, IO=30mA 4.410 4.500 4.590 V
Dropout Vo lt age ∆VIO IO=60mA 0.2 0.3
V
Input Voltage VIN 14 V
Operating Current IDD1 VIN=5.5V, VSTB=VIN, No Load 20 40 µA
Standby Current IDD2 VIN=5.5V, VSTB=GND 0.1 1.0
µA
Input Curr ent ISTB V
IN=5.5V, VSTB=VIN 3.0 6.0
µA
Load Regulation ∆VO/∆IO VIN=5.5V, 1mA≦IO≦60mA 35 120 mV
Line Regulation ∆VO/∆VIN V
IN=5.5V∼12V 0.10 %/V
Ripple Rejection RR VIN=5.5V, ein=0. 5Vp-p, 1k Hz 55 dB
H Level Input Volt age VSTBH 1.5 VIN V
L Level Input Voltage VSTBL 0 0.25 V
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•VO=5.0V (C
IN=0.1µF, CO=10µF, Ta=25°C)
Parameter Symbol Condition MIN. TYP. MAX. Unit
Output Voltage VO VIN=6.0V, IO=30mA 4.900 5.000 5.100 V
Dropout Vo lt age ∆VIO IO=60mA 0.2 0.3
V
Input Voltage VIN 14 V
Operating Current IDD1 VIN=6.0V, VSTB=VIN, No Load 20 40 µA
Standby Current IDD2 VIN=6.0V, VSTB=GND 0.1 1.0
µA
Input Curr ent ISTB V
IN=6.0V, VSTB=VIN 3.5 7.0
µA
Load Regulation ∆VO/∆IO VIN=6.0V, 1mA≦IO≦60mA 35 120 mV
Line Regulation ∆VO/∆VIN V
IN=6.0V∼12V 0.10 %/V
Ripple Rejection RR VIN=6.0V, ein=0. 5Vp-p, 1k Hz 55 dB
H Level Input Volt age VSTBH 1.5 VIN V
L Level Input Voltage VSTBL 0 0.25 V
•VO=5.9V (C
IN=0.1µF, CO=10µF, Ta=25°C)
Parameter Symbol Condition MIN. TYP. MAX. Unit
Output Voltage VO VIN=6.9V, IO=30mA 5.782 5.900 6.018 V
Dropout Vo lt age ∆VIO IO=60mA 0.2 0.3
V
Input Voltage VIN 14 V
Operating Current IDD1 VIN=6.9V, VSTB=VIN, No Load 20 40 µA
Standby Current IDD2 VIN=6.9V, VSTB=GND 0.1 1.0
µA
Input Curr ent ISTB V
IN=6.9V, VSTB=VIN 4.4 8.8
µA
Load Regulation ∆VO/∆IO VIN=6.9V, 1mA≦IO≦60mA 35 120 mV
Line Regulation ∆VO/∆VIN V
IN=6.9V∼12V 0.10 %/V
Ripple Rejection RR VIN=6.9V, ein=0. 5Vp-p, 1k Hz 55 dB
H Level Input Volt age VSTBH 1.5 VIN V
L Level Input Voltage VSTBL 0 0.25 V
•VO=6.0V (C
IN=0.1µF, CO=10µF, Ta=25°C)
Parameter Symbol Condition MIN. TYP. MAX. Unit
Output Voltage VO VIN=7.0V, IO=30mA 5.880 6.000 6.120 V
Dropout Vo lt age ∆VIO IO=60mA 0.2 0.3
V
Input Voltage VIN 14 V
Operating Current IDD1 VIN=7.0V, VSTB=VIN, No Load 20 40 µA
Standby Current IDD2 VIN=7.0V, VSTB=GND 0.1 1.0
µA
Input Curr ent ISTB V
IN=7.0V, VSTB=VIN 4.5 9.0
µA
Load Regulation ∆VO/∆IO VIN=7.0V, 1mA≦IO≦60mA 35 120 mV
Line Regulation ∆VO/∆VIN V
IN=7.0V∼12V 0.10 %/V
Ripple Rejection RR VIN=7.0V, ein=0. 5Vp-p, 1k Hz 55 dB
H Level Input Volt age VSTBH 1.5 VIN V
L Level Input Voltage VSTBL 0 0.25 V
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■ MEASUREMENT CIRCUIT
• Standard Test Circuit
• Standby Input Voltage Test Circuit
• Standby Input Current Test Circuit
• Ripple Rejection Test Cir c uit
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.
