Datasheet

TPS76815-Q1, TPS76818-Q1, TPS76825-Q1, TPS76827-Q1
TPS76828-Q1, TPS76830-Q1 TPS76833-Q1, TPS76850-Q1, TPS76801-Q1
FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS
SGLS155A − FEBRUARY 2003 − REVISED SEPTEMBER 2008
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 9
T
A
− Free-Air Temperature − °C
TPS76815
GROUND CURRENT
vs
FREE-AIR TEMPERATURE
Ground Current − Aµ
−40 0−20 100−60 12020 40 60 80 140
V
I
= 2.7 V
I
O
= 1 A
100
95
90
85
80
75
I
O
= 1 mA
I
O
= 500 mA
100k10k
PSRR − Power Supply Ripple Rejection − dB
f − Frequency − Hz
POWER SUPPLY RIPPLE REJECTION
vs
FREQUENCY
70
60
50
40
30
20
10
0
−10
TPS76833
90
80
1k10010
1M
V
I
= 4.3 V
C
o
= 10 µF
I
O
= 1 A
T
A
= 25°C
Figure 10
TPS76833
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
f − Frequency − Hz
10
2
10
3
10
4
10
5
10
−5
10
−6
10
−8
10
−7
I
O
= 7 mA
I
O
= 1 A
V
I
= 4.3 V
C
o
= 10 µF
T
A
= 25°C
V HzOutput Spectral Noise Density − µ
Figure 11