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LT1611CS5 Datasheet(PDF) 3 Page - Linear Technology

Part # LT1611CS5
Description  Inverting 1.4MHz Switching Regulator in SOT-23
PDF  12 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1611CS5 Datasheet(HTML) 3 Page - Linear Technology

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LT1611
TYPICAL PERFOR A CE CHARACTERISTICS
LOAD CURRENT (mA)
85
80
75
70
65
60
55
50
1611 G01
0
25
50
75
100
125
150
VIN = 3V
VIN = 5V
TEMPERATURE (
°C)
–50
0
50
–25
25
75
100
1611 G03
6
5
4
3
2
1
0
SWITCH CURRENT (mA)
0
100
200
300
400
500
600
700
1611 G04
700
600
500
400
300
200
100
0
TA = 25°C
SHDN PIN VOLTAGE (V)
012345
1611 G05
50
40
30
20
10
0
DUTY CYCLE (%)
10
900
800
700
600
500
400
300
200
100
0
1611 G06
20
30
40
50
60
70
80
TA = 25°C
TEMPERATURE (
°C)
–50
–25
0
25
50
75
100
1611 G07
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0
VIN = 5V
VIN = 1.5V
TEMPERATURE (
°C)
–50
900
800
700
600
500
400
300
200
100
0
1611 G09
–25
0
25
50
75
100
Efficiency, VOUT = – 5V
NFB Pin Bias Current vs
Temperature
VNFB vs Temperature
Switch VCESAT vs Switch Current
Switch Current Limit vs Duty Cycle
SHDN Pin Bias Current vs VSHDN
Oscillator Frequency vs
Temperature
Switch Current Limit vs
Temperature (Duty Cycle = 30%)
No-Load Operating Quiescent
Current vs Temperature*
TEMPERATURE (
°C)
–50
0
50
–25
25
75
100
1611 G02
–1.245
–1.240
–1.235
–1.230
–1.225
–1.220
–1.215
–1.210
TEMPERATURE (
°C)
–50
0
50
–25
25
75
100
1611 G08
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
* Includes bias current through R1, R2 and Schottky leakage current at T
≥ 75°C



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