TLF2931 Datasheet, PDF (12/15 Pages) Infineon Technologies AG – Low Dropout Linear Voltage Regulator

TLF2931
Power Supply Ripple Rejection PSRR versus
Frequency f
90,00
PSRR_F.VSD
80,00
70,00
60,00
I _OUT = 1 mA
I _OUT = 10 mA
50,00
40,00 ^I _OUT ^{= 100 mA}
30,00
20,00
10,00
C _OUT = 10 µF
ESR(C _OUT) = 0,02 Ω
0,00
0,01 0,1
1
10
100
f ^[kHz]
TLF2931GV33: Output Capacitor’s Equivalent
Series Resistance ESR(C_OUT) versus Output
Current I_OUT
10,00
V 33_E S R_IO UT.V S D
9,00
Unstable
Region
8,00
7,00
6,00
5,00
4,00
C _OUT = 10 µF
3,00
Stable Region
2,00
1,00
0,00
0
20 40 60 80 100
I OUT ^[mA]
Electrical Characteristics
TLF2931GV50: Output Capacitor’s Equivalent
Series Resistance ESR(C_OUT) versus Output
Current I_OUT
10,00
ESR_IOUT.VSD
9,00
8,00
7,00
C _OUT = 10 µF
Unstable
Region
6,00
5,00
Stable Region
4,00
3,00
2,00
1,00
0,00
0
20 40 60 80 100
I OUT [mA]
Data Sheet
12
Rev. 1.0, 2010-10-06