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LTM4622 Datasheet(PDF) 5 Page - Linear Technology

Part # LTM4622
Description  Dual Ultrathin 2.5A or Single 5A Step-Down DC/DC 關Module Regulator
PDF  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTM4622 Datasheet(HTML) 5 Page - Linear Technology

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LTM4622
5
Rev F
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
1V Output Transient Response
1.8V Output Transient Response
2.5V Output Transient Response
Efficiency vs Load Current
at 5VIN
Efficiency vs Load Current
at 12VIN
Burst Mode Efficiency,
12VIN, 1.5VOUT
LOAD CURRENT (A)
4622 G01
0
80
85
90
3
75
70
60
65
0.5
1.0
1.5
2.0
2.5
95
2.5V, 1.5MHz
1.5V, 1MHz
1.0V, 1MHz
1.2V, 1MHz
1.8V, 1MHz
3.3V, 2MHz
OUTPUT:
LOAD CURRENT (A)
4622 G02
0
80
85
90
3
75
70
60
65
0.5
1.0
1.5
2.0
2.5
95
3.3V, 2MHz
1.8V, 1MHz
1.2V, 1MHz
1.0V, 1MHz
1.5V, 1MHz
2.5V, 1.5MHz
5.0V, 2.5MHz
OUTPUT:
VOUT
100mV/DIV
AC-COUPLED
LOAD STEP
1A/DIV
VIN = 12V
VOUT = 1V
FS = 1MHz
OUTPUT CAPACITOR = 1
× 47µF CERAMIC
LOAD STEP = 1.25A TO 2.5A
20s/DIV
4622 G04
VOUT
100mV/DIV
AC-COUPLED
LOAD STEP
1A/DIV
VIN = 12V
VOUT = 1.8V
FS = 1MHz
OUTPUT CAPACITOR = 1 × 47µF CERAMIC
LOAD STEP = 1.25A TO 2.5A
20µs/DIV
4622 G07
VOUT
100mV/DIV
AC-COUPLED
LOAD STEP
1A/DIV
VIN = 12V
VOUT = 2.5V
FS = 1.5MHz
OUTPUT CAPACITOR = 1
× 47µF CERAMIC
LOAD STEP = 1.25A TO 2.5A
20µs/DIV
4622 G08
LOAD CURRENT (A)
30
90
100
20
10
80
50
70
60
40
0.01
0.1
1
4622 G03
0
Burst Mode OPERATION
CCM
VOUT
100mV/DIV
AC-COUPLED
LOAD STEP
1A/DIV
VIN = 12V
VOUT = 1.2V
FS = 1MHz
OUTPUT CAPACITOR = 1
× 47µF CERAMIC
LOAD STEP = 1.25A TO 2.5A
20µs/DIV
4622 G05
VOUT
100mV/DIV
AC-COUPLED
LOAD STEP
1A/DIV
VIN = 12V
VOUT = 1.5V
FS = 1MHz
OUTPUT CAPACITOR = 1 × 47µF CERAMIC
LOAD STEP = 1.25A TO 2.5A
20µs/DIV
4622 G06
1.5V Output Transient Response
1.2V Output Transient Response
Efficiency vs Load Current
at 3.3VIN
LOAD CURRENT (A)
4622 G02b
0
80
85
90
3
75
70
60
65
0.5
1.0
1.5
2.0
2.5
95
1.8V, 1MHz
1.2V, 1MHz
1.0V, 1MHz
1.5V, 1MHz
2.5V, 1.5MHz
OUTPUT:



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