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LTC7130 Datasheet(PDF) 6 Page - Linear Technology

Part # LTC7130
Description  20V 20A Monolithic Buck Converter with Ultralow DCR Sensing
PDF  36 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC7130 Datasheet(HTML) 6 Page - Linear Technology

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LTC7130
6
7130fb
For more information www.linear.com/LTC7130
INTVCC Line Regulation
Current Sense Threshold
vs ITH Voltage
Maximum Current Sense Threshold
vs Common Mode Voltage
VITH (V)
0
–10
–5
5
10
15
40
25
0.5
1.0 1.25
7130 G12
0
30
35
20
0.25
0.75
1.5 1.75 2.0
ILIM = 0V
ILIM = 1/4 INTVCC
ILIM = 1/2 INTVCC
ILIM = 3/4 INTVCC
ILIM = INTVCC
VSENSE COMMON MODE VOLTAGE (V)
0
20
30
4.0
7130 G13
10
0
1.0
2.0
3.0
0.5
1.5
2.5
3.5
40
15
25
5
35
ILIM = INTVCC
ILIM = 0V
ILIM = 3/4 INTVCC
ILIM = 1/4 INTVCC
ILIM = 1/2 INTVCC
TYPICAL PERFORMANCE CHARACTERISTICS T
A = 25°C, unless otherwise noted.
Shutdown (RUN) Threshold
vs Temperature
Regulated Feedback Voltage
vs Temperature
Oscillator Frequency
vs Temperature
TK/SS Pull-Up Current
vs Temperature
Maximum Current Sense
Threshold Voltage vs Feedback
Voltage (Current Foldback)
FEEDBACK VOLTAGE (V)
0
15
20
25
0.3
0.5
7130 G14
10
5
0
0.1
0.2
0.4
30
35
40
0.6
ILIM = INTVCC
ILIM = 3/4 INTVCC
ILIM = 1/2 INTVCC
ILIM = 1/4 INTVCC
ILIM = 0V
TEMPERATURE (°C)
7130 G15
–50 –25
0
25
50
75
100 125
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
TEMPERATURE (°C)
7130 G16
1.00
1.20
1.30
1.10
1.40
1.15
1.25
1.05
1.35
–50 –25
0
25
50
75
100 125
ON
OFF
–50 –25
0
25
50
75
100 125
TEMPERATURE (°C)
598.5
599.0
599.5
600.0
600.5
7130 G17
601.0
601.5
–50 –25
0
25
50
75
100 125
TEMPERATURE (°C)
7130 G18
500
550
450
400
600
475
525
425
575
VFREQ = 1.2V
INPUT VOLTAGE (V)
0
5
10
15
20
0
1
2
4
5
6
CC
7130 G11
Tracking Up and Down with
TK/SS External Ramp
VTK/SS
0.2V/DIV
VOUT
0.5V/DIV
20ms/DIV
7130 G10
VIN = 12V
VOUT = 1.5V
1 LOAD
0V
VTK/SS
VOUT



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