ST1L05 STMicroelectronics, ST1L05 Datasheet - Page 12

• Manufacturer Part Number: ST1L05
• Description: Very low quiescent BiCMOS voltage regulator
• Manufacturer: STMicroelectronics

Specifications of ST1L05

• Fixed Output Voltage: 1.8 V, 2.5 V, 3.3 V and ADJ
• Output Voltage Tolerance: ± 2% at 25 °C
• Output Current Capability: 1.3 A
• Very Low Quiescent Current: max 650 μA over temperature range
• Operating Junction Temperature Range: from 0 to 125 °C

Typical characteristics
12/24
Figure 12. Dropout voltage vs. temperature
Figure 14. Quiescent current vs. temperature
Figure 16. Enable voltage vs. temperature
2.5
2.5
1.5
1.5
0.5
0.5
0.8
0.8
0.7
0.7
0.6
0.6
0.5
0.5
0.4
0.4
0.3
0.3
0.2
0.2
0.1
0.1
700
700
600
600
500
500
400
400
300
300
200
200
100
100
2
2
1
1
0
0
0
0
-30
-30
-30
-30
0
0
-30
-30
V
V
V
V
I
I
= 3 V, I
= 3 V, I
EN
EN
C
C
I
I
-5
-5
= V
= V
= C
= C
-5
-5
-5
-5
O
O
O
O
I
I
= 50 mA, C
= 50 mA, C
= 5 V, I
= 5 V, I
= 4.7 µF, V
= 4.7 µF, V
20
20
20
20
20
20
O
O
= 1.3 A, C
= 1.3 A, C
I
I
= C
= C
O
O
@ 3.3 V
@ 3.3 V
O
O
= 4.7 µF
= 4.7 µF
45
45
45
45
45
45
T [°C]
T [°C]
T [°C]
T [°C]
T [°C]
T [°C]
I
I
= C
= C
O
O
70
70
70
70
70
70
= 4.7 µF
= 4.7 µF
95
95
95
95
95
95
I
I
I
I
I
I
O
O
O
O
O
O
120
120
= 800 mA
= 800 mA
= 1 A
= 1 A
= 1.3 A
= 1.3 A
ON
ON
OFF
OFF
120
120
120
120
Doc ID 14492 Rev 2
145
145
145
145
145
145
ST1L05, ST1L05A, ST1L05B, ST1L05C, ST1L05D
Figure 13. ESR required for stability with
Figure 15. Quiescent current vs. output
Figure 17. Enable voltage vs. temperature
2.5
2.5
1.5
1.5
0.5
0.5
0.35
0.35
0.25
0.25
0.15
0.15
0.05
0.05
400
400
350
350
300
300
250
250
200
200
150
150
100
100
0.4
0.4
0.3
0.3
0.2
0.2
0.1
0.1
2
2
1
1
0
0
50
50
0
0
-30
-30
0
0
0
0
0
0
V
V
C
C
V
V
I
I
I
I
= 5.25 V, I
= 5.25 V, I
= 4.7 µF, V
= 4.7 µF, V
EN
EN
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
2
2
= V
= V
-5
-5
I
I
ceramic capacitors
current
= 5.5 V, C
= 5.5 V, C
4
4
O
O
EN
EN
= 50 mA, C
= 50 mA, C
= V
= V
20
20
I
I
6
6
= from 3 V to 5.5 V, I
= from 3 V to 5.5 V, I
I
I
= C
= C
C
C
I
I
O
O
= C
= C
8
8
O
O
[µF] (nominal value)
[µF] (nominal value)
= 4.7 µF
= 4.7 µF
45
45
O
O
= 4.7 µF
= 4.7 µF
I
I
Stable zone
Stable zone
T [°C]
T [°C]
10
10
O
O
[A]
[A]
O
O
12
12
= from 5 mA to 1.3 A
= from 5 mA to 1.3 A
70
70
14
14
95
95
16
16
18
18
1.1 1.2 1.3
1.1 1.2 1.3
120
120
20
20
ON
ON
OFF
OFF
145
145
22
22