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LTM4644 Scheda tecnica(PDF) 4 Page - Analog Devices

Il numero della parte LTM4644
Spiegazioni elettronici  20VIN, Dual 5A or Single 10A Step-Down DC/DC 關Module Regulator
PDF  24 Pages
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

LTM4644 Scheda tecnica(HTML) 4 Page - Analog Devices

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LTM4705
4
Rev. 0
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
1.0V Output Transient Response
1.2V Output Transient Response
1.5V Output Transient Response
1.8V Output Transient Response
2.5V Output Transient Response
3.3V Output Transient Response
50s/DIV
4705 G04
VOUT
(AC-COUPLED)
50mV/DIV
LOAD STEP
500mA/DIV
VIN = 12V, VOUT = 1V, fSW = 1MHz
COUT = 2× 47F + 10F CERAMIC CAPACITORS
CFF = 100pF
1.25A (25%) LOAD STEP, 1A/s
50s/DIV
4705 G05
VOUT
(AC-COUPLED)
50mV/DIV
LOAD STEP
500mA/DIV
VIN = 12V, VOUT = 1.2V, fSW = 1MHz
COUT = 2× 47F + 10F CERAMIC CAPACITORS
CFF = 100pF
1.25A (25%) LOAD STEP, 1A/s
50s/DIV
4705 G06
VOUT
(AC-COUPLED)
50mV/DIV
LOAD STEP
500mA/DIV
VIN = 12V, VOUT = 1.5V, fSW = 1MHz
COUT = 2× 47F + 10F CERAMIC CAPACITORS
CFF = 100pF
1.25A (25%) LOAD STEP, 1A/s
50s/DIV
4705 G07
VOUT
(AC-COUPLED)
50mV/DIV
LOAD STEP
500mA/DIV
VIN = 12V, VOUT = 1.8V, fSW = 1MHz
COUT = 2× 47F + 10F CERAMIC CAPACITORS
CFF = 100pF
1.25A (25%) LOAD STEP, 1A/s
50s/DIV
4705 G08
VOUT
(AC-COUPLED)
50mV/DIV
LOAD STEP
500mA/DIV
VIN = 12V, VOUT = 2.5V, fSW = 1MHz
COUT = 2× 47F + 10F CERAMIC CAPACITORS
CFF = 100pF
1.25A (25%) LOAD STEP, 1A/s
50s/DIV
4705 G09
VOUT
(AC-COUPLED)
100mV/DIV
LOAD STEP
500mA/DIV
VIN = 12V, VOUT = 3.3V, fSW = 1MHz
COUT = 2× 47F + 10F CERAMIC CAPACITORS
CFF = 100pF
1.25A (25%) LOAD STEP, 1A/s
Efficiency vs Load Current
from 5VIN
Efficiency vs Load Current
from 12VIN
LOAD CURRENT (A)
0
1
2
3
4
5
60
65
70
75
80
85
90
95
100
4705 G01
2.5VOUT
3.3VOUT
1.8VOUT
1.5VOUT
1.2VOUT
1.0VOUT
LOAD CURRENT (A)
0
1
2
3
4
5
60
65
70
75
80
85
90
95
100
4705 G02
2.5VOUT
3.3VOUT
1.8VOUT
5.0VOUT
1.5VOUT
1.2VOUT
1.0VOUT
LOAD CURRENT (mA)
0.01
0.1
1
0
10
20
30
40
50
60
70
80
90
100
CCM
Burst Mode OPERATION
4705 G03
Burst Mode Efficiency, 12VIN,
1.5VOUT



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