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LTC3412A Datasheet(PDF) 4 Page - Linear Technology

No. de pieza LTC3412A
Descripción Electrónicos  짹6A Monolithic Synchronous Step-Down Regulator for DDR Termination
PDF  20 Pages
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Fabricante Electrónico  LINER [Linear Technology]
Página de inicio  http://www.linear.com
Logo LINER - Linear Technology

LTC3412A Datasheet(HTML) 4 Page - Linear Technology

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background image
LTC3617
4
3617fa
typical perForMance characteristics
Efficiency vs Input Voltage
Efficiency vs Frequency
Line Regulation
Output Voltage vs Time
INPUT VOLTAGE (V)
40
50
60
70
100
90
2.75
2.25
3.25
4.25
3.75
4.75
3617 G02
5.25
80
VOUT = 1.25V
ILOAD = 600mA
ILOAD = 2A
IOUT = 6A
INPUT VOLTAGE (V)
2.20
–0.3
–0.2
–0.1
0
0.1
0.3
2.75
3.30
3.85
4.40
3617 G05
4.95
5.50
0.2
VOUT
20mV/DIV
SW
2V/DIV
IL
1A/DIV
2µs/DIV
3617 G06
VOUT = 1.25V
ILOAD = 100mA
TA = 25°C, VIN = 3.3V, fO = 1MHz unless otherwise noted.
Efficiency vs Load Current
Load Regulation
LOAD CURRENT (A)
–6
–4
–2
–0.3
0.3
0.2
0.1
0
3617 G04
6
4
2
0
–0.1
–0.2
VOUT = 1.25V
LOAD CURRENT (A)
30
90
100
20
10
80
50
70
60
40
0.1
1
10
3617 G01
0
VIN = 2.5V
VIN = 3.3V
VIN = 5V
VOUT = 1.25V
FREQUENCY (MHz)
1
60
75
70
65
80
85
90
100
95
1.5
2.5
2
3
3.5
3617 G03
4
150nH
330nH
470nH
VOUT = 1.25V
Load Step Transient
Load Step Transient
VOUT
100mV/DIV
IL
4A/DIV
40µs/DIV
3617 G07
VOUT = 1.25V
ILOAD = 100mA TO 6A
COMPENSATION FIGURE 1
VOUT
200mV/DIV
IL
5A/DIV
40µs/DIV
3617 G09
VOUT = 1.25V
ILOAD = –6A TO 6A
COMPENSATION FIGURE 1



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