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LTC3370 Fiches technique(PDF) 10 Page - Linear Technology

No de pièce LTC3370
Description  4-Channel 8A Configurable Buck DC/DCs
PDF  24 Pages
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Fabricant  LINER [Linear Technology]
Site Internet  http://www.linear.com
Logo LINER - Linear Technology

LTC3370 Fiches technique(HTML) 10 Page - Linear Technology

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LTC3370
10
3370fb
For more information www.linear.com/LTC3370
4A Buck Regulator Load Regulation
(Forced Continuous Mode)
1A Buck Regulator Line Regulation
(Forced Continuous Mode)
1A Buck Regulator No-Load Start-Up
Transient(Burst Mode Operation)
1A Buck Regulator No-Load Start-Up
Transient (Forced Continuous Mode)
4A Buck Regulator No-Load Start-Up
Transient (Burst Mode Operation)
4A Buck Regulator No-Load Start-Up
Transient (Forced Continuous Mode)
1A Buck Efficiency vs Frequency
(Forced Continuous Mode)
1A Buck Regulator Load Regulation
(Forced Continuous Mode)
1A Buck Regulator Transient
Response (Burst Mode Operation)
Typical perForMance characTerisTics T
A = 25°C, unless otherwise noted.
FREQUENCY (MHz)
3370 G37
100
90
80
40
30
20
10
70
50
60
0
1
3
1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8
VOUT = 1.8V
VIN = 3.3V
L = 3.3µH
ILOAD = 100mA
ILOAD = 500mA
ILOAD = 20mA
LOAD CURRENT (mA)
3370 G38
1.820
1.816
1.812
1.796
1.792
1.788
1.784
1.808
1.800
1.804
1.780
1
1000
100
10
VIN = 5.5V
VIN = 3.3V
VIN = 2.25V
DROPOUT
fOSC = 2MHz
L = 2.2µH
LOAD CURRENT (mA)
3370 G39
1.820
1.816
1.812
1.796
1.792
1.788
1.784
1.808
1.800
1.804
1.780
1
1000
100
10
VIN = 3.3V
VIN = 2.25V
fOSC = 2MHz
L = 2.2µH
DROPOUT
VIN = 5.5V
VIN (V)
3370 G40
1.820
1.815
1.795
1.790
1.785
1.810
1.800
1.805
1.780
2.25
2.75 3.25 3.75
4.25 4.75 5.25
fOSC = 2MHz
L = 2.2µH
ILOAD = 100mA
ILOAD = 500mA
200µs/DIV
VOUT
500mV/DIV
INDUCTOR
CURRENT
500mA/DIV
EN
2V/DIV
3370 G41
VIN = 3.3V
VOUT = 1.8V
200µs/DIV
VOUT
500mV/DIV
INDUCTOR
CURRENT
500mA/DIV
EN
2V/DIV
3370 G42
VIN = 3.3V
VOUT = 1.8V
200µs/DIV
VOUT
500mV/DIV
INDUCTOR
CURRENT
500mA/DIV
EN
2V/DIV
3370 G43
VIN = 3.3V
VOUT = 1.8V
200µs/DIV
VOUT
500mV/DIV
INDUCTOR
CURRENT
500mA/DIV
EN
2V/DIV
3370 G44
VIN = 3.3V
VOUT = 1.8V
50µs/DIV
VOUT
100mV/DIV
AC-COUPLED
INDUCTOR
CURRENT
200mA/DIV
0mA
3370 G45
LOAD STEP = 100mA TO 700mA
VIN = 3.3V
VOUT = 1.8V



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