LT1676 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LT1676 Datasheet PDF : 16 Pages
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LT1676
TYPICAL PERFORMANCE CHARACTERISTICS
SHDN Pin Shutdown Threshold
vs Temperature
900
800
700
600
500
400
300
200
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
LT1676 G04
Switching Frequency
vs Temperature
106
104
102
100
98
96
94
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1676 G07
VC Pin Switching Threshold,
Boost Threshold, Clamp Voltage
vs Temperature
2.2
2.0
CLAMP
1.8
VOLTAGE
1.6
BOOST
1.4
THRESHOLD
1.2
SWITCHING
THRESHOLD
1.0
0.8
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
LT1676 G10
SHDN Pin Input Current
vs Voltage
5
0
–5
–10
–15
–20
0
25°C
–55°C
125°C
1
2
3
4
SHDN PIN VOLTAGE (V)
5
1676 G05
Minimum Synchronization Voltage
vs Temperature
2.25
2.00
1.75
1.50
1.25
1.00
0.75
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1676 G08
Feedback Amplifier Output
Current vs FB Pin Voltage
100
25°C
–55°C
50
125°C
0
–50
–100
–150
1.0
1.1 1.2 1.3 1.4 1.5
FB PIN VOLTAGE (V)
1676 G11
4
SHDN Pin Lockout Thresholds
vs Temperature
1.30
1.28
UPPER THRESHOLD
1.26
LOWER THRESHOLD
1.24
1.22
1.20
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
LT1676 G06
Switch Minimum On-Time
vs Temperature
600
VIN = 48V
500
RL = 50Ω
FB =
400
300
200
100
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1676 G09
Error Amplifier Transconductance
vs Temperature
750
700
650
600
550
500
450
400
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
LT1676 G12
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