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