TL750M05-Q1 Datasheet, PDF (7/23 Pages) Texas Instruments – AUTOMOTIVE LOW-DROPOUT VOLTAGE REGULATORS

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OUTPUT CAPACITOR EQUIVALENT
SERIES RESISTANCE (ESR)
vs
LOAD CURRENT RANGE
C_L = 10 µF
C_I = 0.1 µF
f = 120 Hz
2.5
This Region Not
Recommended for
Operation
0.5
Max ESR Boundary
0.4
Region of Best Stability
0.3
0.2
0.1
Potential Instability Region
Min ESR
Boundary
0
0
0.1
0.2
0.3
0.4
0.5
I_L - Load Current Rang e - A
Figure 2.
TL750Mxx-Q1, TL751Mxx-Q1
SGLS312J – SEPTEMBER 2005 – REVISED JUNE 2011
STABILITY
vs
EQUIVALENT SERIES RESISTANCE (ESR)
ÎÎ 0.04
ÎÎÎÎÎÎÎÎÎÏÎÏÎÏÎ _0.035
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÏÏÎÎÏÏÎÎÏÏÎÎ _0.03
ÎÎÎÎÎÎÏÎÏÎÏÎÎÎÎ _0.025
Not Recommended
Recommended Min ESR
Potential Instability
1000 µF
Region of
Best Stability
ÎÎÎÎÎÎÏÎÏÎÏÎÎÎÎ _{400 µF}
ÎÎÎÎÏÎÏÎÏÎÏÎÏÎÎÎÎ _0.02
ÎÎÎÎÏÏÎÎÏÏÎÎÏÏÎÎÏÏÎÎÏÏÎÎÎÎÎÎÎÎÎÎÎÎ _0.015
ÎÎÏÎÏÎÏÎÎÎÎÎÎÎÎ _0.01
200 µF
100 µF
ÎÎÏÏÎÎÏÏÎÎÏÏÎÎÏÏÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _0.005
22 µF
ÎÏÎÏÎÏÎÏÎÎÎÎÎÎÎÎ 10 µF
0
ÏÏÏ _{0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5}
1/ESR
Figure 3.
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