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LT1946 Datasheet(PDF) 3 Page - Linear Technology

Part # LT1946
Description  1.2MHz Boost DC/DC Converter with 1.5A Switch and Soft-Start
PDF  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1946 Datasheet(HTML) 3 Page - Linear Technology

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LT1946
3
sn1946 1946fs
TYPICAL PERFOR A CE CHARACTERISTICS
Feedback Pin Voltage
TEMPERATURE (
°C)
–50
1.27
25
1946 G01
1.24
1.22
–25
0
50
1.21
1.20
1.28
1.26
1.25
1.23
75
100
125
FEEDBACK VOLTAGE (V)
0
1400
1200
1000
800
600
400
200
0
0.6
1.0
1946 G02
0.2
0.4
0.8
1.2
TA = –30°CTA = 100°C
TA = 25°C
TEMPERATURE (
°C)
–50
0
0.6
0.4
0.2
0.8
1.0
1.4
1.2
2.6
2.4
2.2
2.0
–25
25
50
125
1946 G03
1.6
1.8
0
75
100
Oscillator Frequency
Current Limit
Switch Saturation Voltage
Quiescent Current
Switching Waveforms
for Figure 1 Circuit
SWITCH CURRENT (A)
0
0.20
0.25
0.30
1.2
1946 G04
0.15
0.10
0.4
0.8
0.2
1.4
0.6
1.0
1.6
0.05
0
0.35
TEMPERATURE (
°C)
–50
2.0
2.2
2.6
2.8
3.0
75
100
3.8
1946 G05
2.4
–25
0
25
50
125
3.2
3.4
3.6
VOUT
20mV/DIV
AC COUPLED
VSW
5V/DIV
0V
ILI
0.5A/DIV
AC COUPLED
0.5
µs/DIV
1946 G06



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