Datasheet
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 – AUGUST 1999
12
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 21
0.01
0.10
1.00
10.00
100.00
0 25 50 75 100 125 150
I
O
– Output Current – mA
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCE
†
vs
OUTPUT CURRENT
V
I
= 4.3 V
C
O
= 4.7 µF
V
O
= 3.3 V
T
A
= 25°C
Minimum ESR
ESR – Equivalent Series Resistance –
Ω
Maximum ESR
Region of Stability
10
2
10
1
10
0
10
–1
10
–2
Region of Instability
Region of Instability
Figure 22
0.01
0.10
1.00
10.00
100.00
0 25 50 75 100 125 150
I
O
– Output Current – mA
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCE
†
vs
OUTPUT CURRENT
V
I
= 4.3 V
C
O
= 4.7 µF
V
O
= 3.3 V
T
A
= 125°C
Minimum ESR
ESR – Equivalent Series Resistance –
Ω
Maximum ESR
Region of Stability
Region of Instability
10
2
10
1
10
0
10
–2
10
–1
Region of Instability
Figure 23
0.01
0.10
1.00
10.00
100.00
0 25 50 75 100 125 150
I
O
– Output Current – mA
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCE
†
vs
OUTPUT CURRENT
V
I
= 4.3 V
C
O
= 10 µF
V
O
= 3.3 V
T
A
= 25°C
Minimum ESR
ESR – Equivalent Series Resistance –
Ω
Maximum ESR
Region of Stability
Region of Instability
10
2
10
1
10
0
10
–2
10
–1
Region of Instability
Figure 24
100
10
–2
0 25 50 75 100 125 150
I
O
– Output Current – mA
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCE
†
vs
OUTPUT CURRENT
V
I
= 4.3 V
C
O
= 10 µF
V
O
= 3.3 V
T
A
= 125°C
Minimum ESR
ESR – Equivalent Series Resistance –
Ω
Maximum ESR
Region of Stability
Region of Instability
10
1
10
0
10
–1
Region of Instability
10
–2
10
2
†
Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, any series resistance added
externally, and PWB trace resistance to C
O
.