NJM2846 New Japan Radio, NJM2846 Datasheet - Page 8

• Manufacturer Part Number: NJM2846
• Description: (NJM2845 / NJM2846) LOW DROPOUT VOLTAGE REGULATOR
• Manufacturer: New Japan Radio

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NJM2845/46
- 8 -
TYPICAL CHARACTERISTICS (NJM2845)
100
0.02
2500
2000
1500
1000
100
90
80
70
60
50
40
30
20
0.1
500
10
1
0.001
10
0
10
0
@:Ta=25
@:Ta=25
Equivalent Serise Resistance vs. Output Current
V
ein=200mVrms
Co=2.2 F(Ceramic)
Co=2.2 F(Ceramic)
V
IN
IN
=4V
=4.0V
0.01
Ripple Rejection Ratio vs. Frequency
o
o
C
C
Quiescent Current vs. Input Voltage
100
100
Io=10mA
Io=100mA
Output Current : Io(m A)
0.1
Input Voltage : V
Frequency : f (Hz)
5
NJM2845_3.0V
STABLE REGION
NJM2845_3.0V
NJM2845_3.0V
1000
1k
1
Io=30mA
Io=0mA
IN
(V)
@:Ta=25
10
10
Output is open.
Co=2.2 F(Ceramic)
10
10k
4
o
C
100
100k
10
10
15
5
3
100
100
80
60
40
20
90
80
70
60
50
40
30
20
0.35
0.25
0.15
0.05
0
0.001
0.001
0.4
0.3
0.2
0.1
0
-50
@:Ta=25
Io=500mA
Co=2.2 F(Ceramic)
V
ein=200mVrms
Co=2.2 F(Ceramic)
IN
=4V
Output Noise Voltage vs. Output Current
0.01
0.01
Ripple Rejection vs. Output Current
o
C
Dropout Voltage vs. Temperature
0
Output Current : Io(mA)
Output Current : Io(mA)
0.1
0.1
Temperature : Ta (
NJM2845_3.0V
NJM2845_3V
f=10kHz
NJM2845_3.0V
1
1
50
f=1kHz
10
10
@:Ta=25
o
C)
V
LPF:80kHz
Co=2.2 F(ceramic)
IN
=4.0V
100
o
C
100
100
Ver.2005-01-20
1000
1000
150