NJM2857 Ver la hoja de datos (PDF) - Japan Radio Corporation
Número de pieza
componentes Descripción
Fabricante
NJM2857 Datasheet PDF : 11 Pages
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TYPICAL CHARACTERISTICS
NJM2857_5.0V
Output Voltage vs. Input Voltage
6
@:Ta=25oC
Co=4.7uF(Ceramic)
Cin=1.0uF(Ceramic)
5
4
3
2
2000mA
1500mA
0mA
500mA
1
1
2
3
4
5
6
Input Voltage : V IN(V)
NJM2857_5.0V
Ground Pin Current vs. Output Current
100
@:Ta=25oC
VIN=6.0V
Co=4.7uF(Ceramic)
80
60
40
20
0
0
500
1000
1500
2000
Output Current : I O(mA)
NJM2857_5.0V
Control Current vs. Control Voltage
20
@:Ta=25oC
V in=6.0V
Co=4.7uF(Ceramic)
Rc=0
15
Rc=50k
10
Rc=100k
5
0
0
0.5
1
1.5
2
2.5
3
3.5
4
Control Voltage : V (V)
Cont
Ver.2010-02-08
NJM2857 www.DataSheet4U.com
NJM2857_5.0V
Output Voltage vs. Output Current
6
5
4
3
2
1
@:Ta=25oC
Vin=6V
Co=4.7uF(Ceramic)
0
0
500
1000
1500
2000
2500
3000
Output Current : Io(mA)
NJM2857_5.0V
Dropout Voltage vs. Output Current
0.4
@:Ta=25oC
Co=2.2uF(Ceramic)
0.35
0.3
0.25
0.2
0.15
0.1
0.05
0
0
500
1000
1500
Output Current:Io(mA)
2000
NJM2857_5.0V
Output Voltage vs. Control Voltage
6
Rc=100k
5
Rc=50k
Rc=0
4
3
2
1 @:Ta=25oC
V in=6.0V
Co=2.2uF(Ceramic)
Io=30mA
0
0
0.5
1
1.5
2
-7-
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