LTC3025-4 Linear Technology, LTC3025-4 Datasheet - Page 5

• Manufacturer Part Number: LTC3025-4
• Description: 500mA Micropower VLDO Linear Regulators
• Manufacturer: Linear Technology

TYPICAL PERFORMANCE CHARACTERISTICS
1000
900
800
700
600
500
400
300
200
100
70
60
50
40
30
20
10
14
12
10
0
8
6
4
2
0
0
100
0.5
–50
V
vs Frequency
V
SHDN Threshold vs Temperature
V
V
V
V
V
I
IN
IN
OUT
BIAS
OUT
BIAS
IN
OUT
No Load Operating Current
Ripple Rejection
–25
= 1.5V
= 100mA
= 0.8V
= 1.2V
= 5V
= 3.6V
1.5
1k
V
0
BIAS
TEMPERATURE (°C)
FREQUENCY (Hz)
10k
2.5
= 2.5V
25
125°C
25°C
V
85°C
IN
C
(V)
OUT
V
50
100k
BIAS
3.5
= 1μF
–40°C
C
= 5V
OUT
75
1M
4.5
= 10μF
30251234 G10
30251234 G04
100
30251234 G07
10M
125
5.5
1600
1400
1200
1000
800
600
400
200
70
60
50
40
30
20
10
0
0
100
7
6
5
4
3
2
1
0
0.5
0
V
Current Limit vs V
BIAS Ripple Rejection
vs Frequency
V
V
V
I
OUT
IN
V
BIAS
IN
OUT
BIAS
= 1.5V
Shutdown Current
= 100mA
85°C
= 1.2V
= 3.6V
1
1k
= 5V
1.5
FREQUENCY (Hz)
2
10k
2.5
V
V
IN
IN
3
(V)
IN
(V)
100k
C
3.5
Voltage
OUT
25°C
–40°C
4
C
OUT
= 1μF
1M
= 10μF
4.5
30251234 G11
5
30251234 G08
LTC3025-1/LTC3025-2/
30251234 G05
(T
LTC3025-3/LTC3025-4
A
10M
= 25°C unless otherwise noted)
5.5
6
100mV/DIV
10mV/DIV
V
405
404
403
402
401
400
399
398
397
396
395
OUT
V
AC
AC
50
45
40
35
30
25
20
15
10
5
0
IN
1.2
–50
Adjust Voltage vs Temperature
Burst Mode DC/DC Buck Ripple
Rejection
3MHz V
V
V
C
I
V
V
OUT
V
V
I
IN
OUT
OUT
BIAS
OUT
OUT
BIAS
IN
= 1.8V
1.4
–25
= 50mA
= 1.5V
= 1.5V
= 1μF
= 1.2V
= 3.6V
= 10μA
= 3.6V
IN
1.6
www.DataSheet4U.com
0
Supply Rejection
TEMPERATURE (°C)
1.8
25
10μs/DIV
V
C
C
IN
OUT
OUT
(V)
2.0
50
= 10μF
= 1μF
I
I
2.2
OUT
OUT
75
= 100mA
= 300mA
30251234 G12
2.4
30251234fc
100
30251234 G06
30251234 G09
5
2.6
125