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LT1777CS Datasheet(PDF) 4 Page - Linear Technology

Part # LT1777CS
Description  Low Noise Step-Down Switching Regulator
PDF  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1777CS Datasheet(HTML) 4 Page - Linear Technology

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4
LT1777
TYPICAL PERFOR A CE CHARACTERISTICS
Minimum Input Voltage
vs Temperature
TEMPERATURE (
°C)
–50
7.4
7.2
7.0
6.8
6.6
6.4
6.2
6.0
25
75
1777 G01
–25
0
50
100
125
SWITCH CURRENT (mA)
0
1.50
1.25
1.00
0.75
0.50
0.25
0
300
500
1777 G02
100
200
400
600
700
125
°C
–55
°C
25
°C
Switch On Voltage
vs Switch Current
Switch Current Limit
vs Duty Cycle
DUTY CYCLE (%)
0
1000
800
600
400
200
0
80
1777 G03
20
10
30
50
70
90
40
60
100
TA = 25°C
SHDN Pin Shutdown Threshold
vs Temperature
TEMPERATURE (
°C)
–50
900
800
700
600
500
400
300
200
25
75
1777 G04
–25
0
50
100
125
SHDN Pin Current vs Voltage
SHDN Pin Lockout Thresholds
vs Temperature
SHDN PIN VOLTAGE (V)
0
5
0
–5
–10
–15
–20
4
1777 G05
1
2
3
5
25
°C
125
°C
–55
°C
TEMPERATURE (
°C)
–50
1.30
1.28
1.26
1.24
1.22
1.20
25
75
1777 G06
–25
0
50
100
125
UPPER THRESHOLD
LOWER THRESHOLD



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