LTM4624 查看數據表（PDF） - Linear Technology
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LTM4624 Datasheet PDF : 26 Pages
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Typical Performance Characteristics
Start-Up with No Load
Start-Up with 4A Load
LTM4624
Short-Circuit with No Load
IIN
0.1A/DIV
VOUT
0.5V/DIV
IIN
0.2A/DIV
VOUT
0.5V/DIV
IIN
0.5A/DIV
VOUT
0.5V/DIV
VIN = 12V
5ms/DIV
4624 G09
VOUT = 1.5V
INPUT CAPACITOR = 150µF SANYO ELECTROLYTIC
CAPACITOR (OPTIONAL) + 22µF CERAMIC CAPACITOR
OUTPUT CAPACITOR = 47µF CERAMIC CAPACITOR
SOFT-START CAPACITOR = 0.1µF
VIN = 12V
5ms/DIV
4624 G10
VOUT = 1.5V
INPUT CAPACITOR = 150µF SANYO ELECTROLYTIC
CAPACITOR (OPTIONAL) + 22µF CERAMIC CAPACITOR
OUTPUT CAPACITOR = 47µF CERAMIC CAPACITOR
SOFT-START CAPACITOR = 0.1µF
VIN = 12V
20µs/DIV
4624 G11
VOUT = 1.5V
INPUT CAPACITOR = 150µF SANYO ELECTROLYTIC
CAPACITOR (OPTIONAL) + 22µF CERAMIC CAPACITOR
OUTPUT CAPACITOR = 47µF CERAMIC CAPACITOR
Short-Circuit with 4A Load
Recovery to No Load
from Short Circuit
Output Ripple
IIN
0.5A/DIV
VOUT
0.5V/DIV
VOUT
200mV/DIV
IOUT
20A/DIV
5mV/DIV
AC-COUPLED
VIN = 12V
20µs/DIV
4624 G12
VOUT = 1.5V
INPUT CAPACITOR = 150µF SANYO ELECTROLYTIC
CAPACITOR (OPTIONAL) + 22µF CERAMIC CAPACITOR
OUTPUT CAPACITOR = 47µF CERAMIC CAPACITOR
VIN = 12V
5µs/DIV
4624 G13
VOUT = 1V
INPUT CAPACITOR = 22µF SANYO ELECTROLYTIC
CAPACITOR (OPTIONAL) + 2× 22µF CERAMIC CAPACITOR
OUTPUT CAPACITOR = 2× 47µF CERAMIC CAPACITOR
SOFT-START CAPACITOR = 0.1µF
VIN = 12V
500µs/DIV
4624 G14
VOUT = 1.5V
INPUT CAPACITOR = 22µF SANYO ELECTROLYTIC
CAPACITOR (OPTIONAL) + 2× 22µF CERAMIC
CAPACITOR
OUTPUT CAPACITOR = 2× 47µF CERAMIC
CAPACITOR
SOFT-START CAPACITOR = 0.1µF
Start Into Pre-Bias Output
VIN
2V/DIV
VOUT
1V/DIV
12V Input to 1.8V Output,
50% Load Transient Response
VOUT
100mV/DIV
AC-COUPLED
LOAD STEP
2A/DIV
5V Input to 1.2V Output,
50% Load Transient Response
VOUT
50mV/DIV
AC-COUPLED
LOAD STEP
1A/DIV
VIN = 12V
1µs/DIV
4624 G15
VOUT = 5V
INPUT CAPACITOR = 22µF SANYO ELECTROLYTIC
CAPACITOR (OPTIONAL) + 2× 22µF CERAMIC CAPACITOR
OUTPUT CAPACITOR = 2× 47µF CERAMIC CAPACITOR
SOFT-START CAPACITOR = 0.1µF
VIN = 12V
50µs/DIV
4624 G16
VOUT = 1.8V
IOUT = 2A TO 4A, 1A/µs
OUTPUT CAPACITOR = 1× 47µF CERAMIC
VIN = 5V
50µs/DIV
4624 G17
VOUT = 1.2V
IOUT = 2A TO 4A, 1A/µs
OUTPUT CAPACITOR = 1× 47µF CERAMIC
For more information www.linear.com/LTM4624
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