LTM4602 查看數據表（PDF） - Linear Technology
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LTM4602 Datasheet PDF : 24 Pages
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LTM4602
TYPICAL PERFORMANCE CHARACTERISTICS (See Figure 21 for all curves)
Start-Up, No Load, IOUT = 0A
Start-Up, IOUT = 6A
(Resistive Load)
Short-Circuit Protection,
IOUT = 0A
VOUT
0.5V/DIV
VOUT
0.5V/DIV
VOUT
0.5V/DIV
IIN
0.5A/DIV
VIN = 12V
200μs/DIV
4602 G10
VOUT = 1.5V
COUT = 1 × 22μF, 6.3V X5R
330μF, 4V SANYO POSCAP
NO EXTERNAL SOFT-START CAPACITOR
IIN
0.5A/DIV
VIN = 12V
500μs/DIV
4602 G11
VOUT = 1.5V
COUT = 1 × 22μF, 6.3V X5R
330μF, 4V SANYO POSCAP
NO EXTERNAL SOFT-START CAPACITOR
IIN
0.5A/DIV
VIN = 12V
20μs/DIV
VOUT = 1.5V
COUT = 1 × 22μF, 6.3V X5R
330μF, 4V SANYO POSCAP
4602 G12
NO EXTERNAL SOFT-START CAPACITOR
Short-Circuit Protection,
IOUT = 6A
VOUT
0.5V/DIV
IIN
0.5A/DIV
VIN = 12V
20μs/DIV
VOUT = 1.5V
COUT = 1 × 22μF, 6.3V X5R
330μF, 4V SANYO POSCAP
4602 G13
NO EXTERNAL SOFT-START CAPACITOR
VIN to VOUT Step-Down Ratio
5.5 fADJ = OPEN
5V
5.0
4.5
4.0
3.5
3.3V
3.0
2.5V
2.5
2.0
1.8V
1.5
1.5V
1.0
1.2V
0.5
0
0
0.6V
5
10
15
20
VIN (V)
SEE FREQUENCY ADJUSTMENT DISCUSSION
FOR 12VIN TO 5VOUT AND 5VIN TO 3.3VOUT
CONVERSION
4602 G14
4602fa
5
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