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LT3050 Datasheet(PDF) 7 Page - Linear Technology

Part # LT3050
Description  100mA, Low Noise Linear Regulator With Precision Current Limit And Diagnostic Functions
PDF  20 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3050 Datasheet(HTML) 7 Page - Linear Technology

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LT3050
7
3050f
Output Noise Spectral Density
CREF/BYP = 0
Output Noise Spectral Density
vs CREF/BYP
RMS Output Noise vs Load Current
vs CREF/BYP
RMS Output Noise vs Load Current
CREF/BYP = 10nF
Input Ripple Rejection
Minimum Input Voltage
Load Regulation
TYPICAL PERFORMANCE CHARACTERISTICS T
J = 25°C, unless otherwise noted.
FREQUENCY (Hz)
90
40
50
60
70
80
30
3050 G19
0
10
20
10
100
1K
10K
100K
1M
10M
IL = 100mA
CREF/BYP = 100pF
VOUT = 5V
VIN = 5.8V + 50mVRMS RIPPLE
COUT = 2.2μF
COUT = 10μF
TEMPERATURE (°C)
2.2
1.2
1.4
1.6
1.8
2.0
1.0
3050 G20
0
0.2
0.4
0.6
0.8
–75 –50 –25 0
25 50 75 100 125 150 175
IL =100mA
TEMPERATURE (°C)
4
1
2
3
0
3050 G21
–4
–2
–1
–3
–75 –50
0 25
–25
50 75 100 125 150 175
ΔIL = 1mA TO 100mA
VOUT = 0.6V
VIN = 2.2V
LOAD CURRENT (mA)
0.01
0
40
30
20
10
110
100
90
80
70
60
50
10
1
100
3050 G24
0.1
VOUT = 0.6V
COUT = 10μF
CREF/BYP = 0
CREF/BYP = 10pF
CREF/BYP = 100pF
CREF/BYP = 1nF
CREF/BYP = 10nF
CREF/BYP = 100nF
LOAD CURRENT (mA)
0.01
0
50
40
30
20
10
170
120
130
140
150
160
110
100
90
80
70
60
10
1
100
3050 G25
0.1
VOUT = 5V
VOUT = 3.3V
VOUT = 1.2V
VOUT = 2.5V
VOUT = 1.8V
VOUT = 1.5V
VOUT = 0.6V
fOUT = 10Hz TO 100kHz
COUT = 10μF
TEMPERATURE (°C)
100
20
40
50
60
70
80
90
30
10
3050 G19a
0
–75 –50 –25 0
25 50 75 100 125 150 175
IL = 100mA
VOUT = 5V
VIN = 5.8V + 0.5VP-P RIPPLE AT f = 120Hz
COUT = 10μF
CREF/BYP = 10nF
FREQUENCY (Hz)
10
1
3050 G22
0.01
0.1
10
100
1K
10K
100k
IL = 100mA
COUT = 10μF
VOUT = 1.5V
VOUT = 1.2V
VOUT = 0.6V
VOUT = 1.8V
VOUT = 2.5V
VOUT = 3.3V
VOUT = 5V
FREQUENCY (Hz)
10
0.01
1
0.1
10
10k
1k
100k
3050 G23
100
VOUT = 5V
CREF/BYP = 10nF
CREF/BYP = 1nF
VOUT = 0.6V
COUT = 10μF
IL = 100mA
CREF/BYP = 100pF
Ripple Rejection vs Temperature
Startup Time
vs REF/BYP Capacitor
REF/BYP CAPACITOR (nF)
60
50
40
30
3050 G33
0
10
20
0
102030405060708090 100



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