LT3071IUFD View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LT3071IUFD
Linear Technology
LT3071IUFD Datasheet PDF : 30 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
IN Pin Ripple Rejection
vs VIN – VOUT, 1V/2.5A
120
110 50mVP-P RIPPLE ON VIN
100
COUT = 117μF
VBIAS = 2.5V
90 TA = 25°C
80
RIPPLE AT f = 10kHz
70
60
50
RIPPLE AT f = 1MHz
40
RIPPLE AT f = 100kHz
30
20
10
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2
AVERAGE INPUT/OUTPUT DIFFERENTIAL (V)
3071 G37
IN Pin Ripple Rejection
vs VIN – VOUT, 1V/1A
120
110 50mVP-P RIPPLE ON VIN
100
COUT = 117μF
VBIAS = 2.5V
90 TA = 25°C
80
RIPPLE AT f = 10kHz
70
60
RIPPLE AT f = 1MHz
50
40
RIPPLE AT f = 100kHz
30
20
10
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2
AVERAGE INPUT/OUTPUT DIFFERENTIAL (V)
3071 G38
LT3071
Minimum BIAS Voltage
vs Temperature
4.0
IOUT = 5A
3.8
3.6
VOUT = 1.8V
VOUT = 1.2V
VOUT = 0.8V
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3071 G39
Minimum BIAS Voltage vs IOUT
3.6 VIN = VOUT(NOMINAL) + 300mV
3.4
∆VOUT = –1%, TJ = 25°C
VOUT = 1.8V
3.2
VOUT = 1.5V
VOUT = 1.2V
3.0
VOUT = 0.8V TO 1V
2.8
2.6
2.4
2.2
2.0
0
1
2
3
4
5
OUTPUT CURRENT (A)
3071 G40
Bias Voltage Line Regulation
800
VBIAS = 2.2V TO 3.6V
700 VIN = 1.1V
VOUT = 0.8V
600 IOUT = 10mA
500
400
300
200
100
0
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3071 G43
Minimum BIAS Voltage vs VOUT
3.4
IOUT = 5A
3.2 TJ = 25°C
3.0
2.8
2.6
2.4
2.2
2.0
1.8
0.7
0.9 1.1 1.3 1.5 1.7 1.9
OUTPUT VOLTAGE (V)
3071 G41
Bias Voltage Line Regulation
400
VBIAS = 3.25V TO 3.6V
300 VIN = 2.1V
VOUT = 1.8V
200 IOUT = 10mA
100
0
–100
–200
–300
–400
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3071 G44
For more information www.linear.com/LT3071
Load Regulation
0
–2
–4
–6 VIN = VOUT(NOMINAL) + 300mV
VBIAS = 3.3V
∆IOUT = 100mA TO 5A
–8
VOUT = 0.8V
VOUT = 1.2V
VOUT = 1.8V
–10
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3071 G42
Input Voltage Line Regulation
300
VBIAS = 3.3V
VIN = 1.05V TO 2.7V
250 VOUT = 0.8V
IOUT = 10mA
200
150
100
50
0
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3071 G45
3071fc
9
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