Datasheet

IFX2931
Electrical Characteristics
Data Sheet 12 Rev. 1.13, 2011-02-10
Power Supply Ripple Rejection PSRR versus
Frequency
f
IFX2931GV50: Output Capacitor’s Equivalent
Series Resistance
ESR(C
OUT
) versus Output
Current
I
OUT
IFX2931GV33: Output Capacitor’s Equivalent
Series Resistance
ESR(C
OUT
) versus Output
Current
I
OUT
0,00
10,00
20,00
30,00
40,00
50,00
60,00
70,00
80,00
90,00
0,01 0,1 1 10 100
f
[kHz]
PSRR
[dB]
I
OUT
= 1 mA
C
OUT
= 10 µF
ESR(C
OUT
) = 0,02 
I
OUT
= 10 mA
I
OUT
= 100 mA
PSRR_F.VSD
0,00
1,00
2,00
3,00
4,00
5,00
6,00
7,00
8,00
9,00
10,00
020406080100
I
OUT
[mA]
ESR(C
OUT
)
[ ]
C
OUT
= 10 µF
Unstable
Region
Stable Region
ESR_IOUT.VSD
0,00
1,00
2,00
3,00
4,00
5,00
6,00
7,00
8,00
9,00
10,00
0 20406080100
I OUT
[mA]
ESR(C
OUT
)
[ ]
C
OUT
= 10 µF
Unstable
Region
Stable Region
V33_ESR_IOUT.VSD