lt3071 Linear Technology Corporation, lt3071 Datasheet - Page 9
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lt3071
Manufacturer Part Number
lt3071
Description
Lt3071 5a, Low Noise, Programmable Output, 85mv Dropout Linear Regulator With Analog Margining Features
Manufacturer
Linear Technology Corporation
Datasheet
1.LT3071.pdf
(28 pages)
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typicAl perFormAnce chArActeristics
–100
–200
–300
–400
400
300
200
100
20
18
16
14
12
10
80
70
60
50
40
30
20
10
8
6
4
2
0
0
0
0.01
–75
0
Bias Voltage Line Regulation
Output Voltage Start-Up Time
vs C
RMS Output Noise
vs Output Current
V
V
C
V
V
V
I
V
I
C
T
SEE APPLICATIONS
INFORMATION FOR
START-UP DETAILS
OUT
OUT
BIAS
IN
OUT
IN
BIAS
OUT
BIAS
OUT
J
–50
= 25°C
= 2.1V
= V
REF/BYP
= 10mA
= 10mA
= 1.8V
= 16.9µF
= 10µF + 4.7µF + 2.2µF
= 3.3V
V
V
V
= 3.25V TO 3.6V
–25
= 2.5V TO 3.3V
0.1
OUT(NOMINAL)
OUT
OUT
OUT
REF/BYP CAPACITANCE (µF)
OUTPUT CURRENT (A)
= 1.8V
= 1.2V
= 0.8V
0
TEMPERATURE (°C)
0.1
0.2
25
50
+ 300mV
0.3
75
100
1
125
0.4
150
3071 G37
3071 G40
3071 G34
175
0.5
10
100µV/DIV
V
300
250
200
150
100
200
100
400
350
300
250
150
OUT
50
50
0
0
–75
0
Output Noise (10Hz to 100kHz)
Input Voltage Line Regulation
Nap Mode Recovery Time vs I
V
I
C
V
V
EN = LOW TO HIGH
I
T
OUT
V
V
V
I
OUT
OUT
OUT
OUT
BIAS
IN
J
BIAS
IN
OUT
–50
= 25°C
= V
= 1.05V TO 2.7V
= 5A
= 5A (SET BY A RESISTOR LOAD)
= 1V
= 16.9µF
= 10mA
= 0.8V
= 3.3V
V
C
V
C
V
C
–25
= 3.3V
OUT(NOM)
OUT
OUT
OUT
OUT
OUT
OUT
1
OUTPUT CURRENT (A)
= 1.2V,
= 1.8V,
= 117µF
= 117µF
= 0.8V,
= 117µF
TEMPERATURE (°C)
0
25
+ 300mV
2
1ms/DIV
50
75
3
100
125
4
150
OUT
3071 G35
3071 G38
3071 G41
175
5
50mV/DIV
1mV/DIV
0.001
0.01
V
300
250
200
150
100
0.1
OUT
1.0
V
50
IN
0
–75
10
Input Voltage Line Transient
Response
Output Noise Spectral Density
Input Voltage Line Regulation
V
V
I
C
OUT
V
V
V
I
IN
OUT
OUT
OUT
BIAS
IN
OUT
–50
= 1.3V
= 2.05V TO 2.7V
= 5A
= 1V
= 16.9µF
= 10mA
= 1.8V
= 3.3V
–25
100
0
TEMPERATURE (°C)
FREQUENCY (Hz)
25
20µs/DIV
50
1k
75
LT3071
V
V
I
C
C
OUT
BIAS
OUT
OUT
REF/BYP
100
= 5A
= 1V
= 16.9µF
10k
= 2.5V
125
= 0.01µF
150
3071 G39
3071 G36
3071 G42
3071fa
100k
175