Datasheet

LT3070
9
3070fb
For more information www.linear.com/LT3070
TYPICAL PERFORMANCE CHARACTERISTICS
Minimum BIAS Voltage
vs Temperature
BIAS Pin Ripple Rejection IN Pin Ripple Rejection
Minimum BIAS Voltage vs V
OUT
Current Limit vs V
IN
– V
OUT
IN-TO-OUT VOLTAGE DIFFERENTIAL (V)
0
CURRENT LIMIT (A)
4
6
2.00
3070 G26
2
0
0.50
1.00
1.50
0.25
0.75
1.25
1.75
8
3
5
1
7
V
OUT
= 1.8V
V
OUT
= 1.2V
V
OUT
= 0.8V
V
BIAS
= 3.3V
T
J
= 25°C
FREQUENCY (Hz)
10 100
40
BIAS PIN RIPPLE REJECTION (dB)
50
60
70
80
1k 10k 100k 1M 10M
3070 G27
30
20
10
0
90
100
V
BIAS
= 2.5V + 500mV
P-P
V
BIAS
= 2.7V + 500mV
P-P
V
BIAS
= 3.3V + 500mV
P-P
V
IN
= 1.3V
V
OUT
= 1V
I
OUT
= 5A
C
OUT
= 10µF + 4.7µF + 2.2µF
FREQUENCY (Hz)
10 100
IN PIN RIPPLE REJECTION (dB)
40
50
60
1k 10k 100k 1M 10M
3070 G28
30
20
10
0
70
80
C
OUT
= 117µF
C
OUT
= 16.9µF
V
OUT
= 1V
V
IN
= 1.3V + 50mV
P-P
RIPPLE
V
BIAS
= 2.5V
I
OUT
= 1A
IN Pin Ripple Rejection
FREQUENCY (Hz)
10 100
IN PIN RIPPLE REJECTION (dB)
40
50
60
1k 10k 100k 1M 10M
3070 G29
30
20
10
0
70
80
C
OUT
= 117µF
C
OUT
= 16.9µF
V
OUT
= 1V
V
IN
= 1.3V + 50mV
P-P
RIPPLE
V
BIAS
= 2.5V
I
OUT
= 5A
TEMPERATURE (°C)
–75
MINIMUM BIAS VOLTAGE (V)
3.2
3.6
4.0
125
3070 G30
2.8
2.4
3.0
3.4
3.8
2.6
2.2
2.0
–25–50
250
75 100 150
50
175
I
OUT
= 5A
V
OUT
= 1.8V
V
OUT
= 1.2V
V
OUT
= 0.8V
Minimum BIAS Voltage vs I
OUT
OUTPUT CURRENT (A)
0
MINIMUM BIAS VOLTAGE (V)
2.6
2.8
3.0
3
5
3070 G31
2.4
2.2
2.0
1 2 4
3.2
3.4
3.6
V
OUT
= 1.8V
V
OUT
= 1.5V
V
OUT
= 1.2V
V
OUT
= 0.8V TO 1V
V
IN
= V
OUT(NOMINAL)
+ 300mV
∆V
OUT
= –1%, T
J
= 25°C
OUTPUT VOLTAGE (V)
0.7
MINIMUM BIAS VOLTAGE (V)
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.5
3070 G51
0.9 1.1 1.3 1.91.7
I
OUT
= 5A
T
J
= 25°C
Bias Voltage Line Regulation
TEMPERATURE (°C)
–75
BIAS VOLTAGE LINE REGULATION (µV)
800
700
600
500
400
300
200
100
0
125
3070 G33
–25 25 75 175100–50 0 50 150
V
BIAS
= 2.2V TO 3.6V
V
IN
= 1.1V
V
OUT
= 0.8V
I
OUT
= 10mA
Load Regulation
TEMPERATURE (°C)
–75
LOAD REGULATION (mV)
–4
–2
0
125
3070 G32
–6
–8
–10
–50 –25 0
25 50
75 100 150
175
V
IN
= V
OUT(NOMINAL)
+ 300mV
V
BIAS
= 3.3V
∆I
OUT
= 100mA TO 5A
V
OUT
= 0.8V
V
OUT
= 1.2V
V
OUT
= 1.8V