LTM4624 查看數據表（PDF） - Linear Technology
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LTM4624 Datasheet PDF : 26 Pages
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LTM4624
Typical Performance Characteristics
Efficiency vs Load Current
with 5VIN
100
95
90
85
80
75
70
65
VOUT = 3.3V
60
VOUT = 2.5V
VOUT = 1.5V
55
VOUT = 1.2V
VOUT = 1V
50
0
1
2
3
4
LOAD CURRENT (A)
4624 G01
1V Output Transient Response
Efficiency vs Load Current
with 12VIN
100
95
90
85
80
75
70
VOUT = 5V
65
VOUT = 3.3V
60
VOUT = 2.5V
VOUT = 1.5V
55
VOUT = 1.2V
VOUT = 1V
50
0
1
2
3
4
LOAD CURRENT (A)
4624 G02
1.5V Output Transient Response
DCM Mode Efficiency, VOUT = 1.5V
100
90
VIN = 5V
80
70
VIN = 12V
60
50
40
30
20
10
0
0.001
0.01
0.1
1
10
LOAD CURRENT (A)
4624 G03
2.5V Output Transient Response
VOUT
50mV/DIV
AC-COUPLED
VOUT
50mV/DIV
AC-COUPLED
VOUT
50mV/DIV
AC-COUPLED
LOAD STEP
1A/DIV
LOAD STEP
1A/DIV
LOAD STEP
1A/DIV
VIN = 12V
20µs/DIV
4624 G04
VOUT = 1V
IOUT = 3A TO 4A, 1A/µs
OUTPUT CAPACITOR = 1 × 47µF CERAMIC
VIN = 12V
20µs/DIV
4624 G05
VOUT = 1.5V
IOUT = 3A TO 4A, 1A/µs
OUTPUT CAPACITOR = 1 × 47µF CERAMIC
VIN = 12V
20µs/DIV
4624 G06
VOUT = 2.5V
IOUT = 3A TO 4A, 1A/µs
OUTPUT CAPACITOR = 1 × 47µF CERAMIC
3.3V Output Transient Response
5V Output Transient Response
VOUT
50mV/DIV
AC-COUPLED
LOAD STEP
1A/DIV
VIN = 12V
20µs/DIV
4624 G07
VOUT = 3.3V
IOUT = 3A TO 4A, 1A/µs
OUTPUT CAPACITOR = 1 × 47µF CERAMIC
VOUT
50mV/DIV
AC-COUPLED
LOAD STEP
1A/DIV
VIN = 12V
20µs/DIV
4624 G08
VOUT = 5V
IOUT = 3A TO 4A, 1A/µs
OUTPUT CAPACITOR = 1 × 47µF CERAMIC
4624fc
4
For more information www.linear.com/LTM4624
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