Power Management
A A
MICROELECTRONICS
GM1117
1.0A LOW DROPOUT PRECISION LINEAR REGULATORS
Typical Performance Characteristics
1.00
0.10
0.08
0.06
0.04
0.02
0.00
-0.02
-0.04
-0.06
-0.08
-0.10
-0.12
T
= 0°C
CASE
0.95
0.90
0.85
0.80
0.75
T
= 25°C
CASE
T
= 125°C
CASE
0
10 20 30 40 50 60 70 80 90 100 110 120 130
(°C)
J
0
200
400
600
800
1000
IOUT(mA)
T
Figure 3. Dropout Voltage vs. Output Current
Figure 4. Reference Voltage vs. Temperature
70
85
75
65
55
45
I
O
= 10mA
65
60
55
50
45
40
T
= 25°C
CASE
I
= 1.0A
OUT
35
25
15
(V - V
IN
) = 3.0V
OUT
V
= 1.0VP-P
RIPPLE
C
adj
=0.1µF
1
2
3
4
5
6
10
10
10
10
10
10
0
10 20 30 40 50 60 70 80 90 100 110 120 130
Temperature (°C)
Frequency(Hz)
Figure 5. Adjust Pin Current vs. Temperature
Figure 6. Ripple Rejection vs. Frequency
3.5
3.3
3.1
2.9
2.7
2.5
2.3
2.1
1.9
1.7
1.5
300
200
100
0
V
= 3.3V
-100
-200
1000
500
0
OUT
C
= C =22µF Tantalum
IN
OUT
C
=0.1µF
Adj
0
1
2
3
4
5
6
7
8
9
10
1.0
1.5
2.0
2.5
- V
3.0
3.5
4.0
V
IN
Time(µS)
OUT(V)
Figure 7. Transient Response
Figure 8. Short Circuit Current vs. VIN-VOUT
9
GAMMA [ GAMMA MICROELECTRONICS INC. ]
