LTM4600HV
TYPICAL PERFOR A CE CHARACTERISTICS (See Figure 21 for all curves)
Start-Up, I OUT = 0A
V OUT
(0.5V/DIV)
I IN
(0.5A/DIV)
Start-Up, I OUT = 10A
(Resistive Load)
V OUT
(0.5V/DIV)
I IN
(0.5A/DIV)
200μs/DIV
V IN = 12V
V OUT = 1.5V
C OUT = 200μF
NO EXTERNAL SOFT-START CAPACITOR
4600hv G10
200μs/DIV
V IN = 12V
V OUT = 1.5V
C OUT = 200μF
NO EXTERNAL SOFT-START CAPACITOR
4600hv G11
Short-Circuit Protection,
Short-Circuit Protection,
I OUT = 0A
I OUT = 10A
V IN to V OUT Stepdown Ratio
5.5
5.0
f ADJ = OPEN
5V
V OUT
(0.5V/DIV)
V OUT
(0.5V/DIV)
4.5
4.0
I IN
(0.2A/DIV)
I IN
(0.5A/DIV)
3.5
3.0
2.5
3.3V
2.5V
20μs/DIV
V IN = 12V
V OUT = 1.5V
C OUT = 2 × 200μF/X5R
NO EXTERNAL SOFT-START CAPACITOR
4600hv G12
20μs/DIV
V IN = 12V
V OUT = 1.5V
C OUT = 2 × 200μF/X5R
NO EXTERNAL SOFT-START CAPACITOR
4600hv G13
2.0
1.5
1.0
0.5
0
0
5
0.6V
10
1.5V
1.2V
15
20
1.8V
24
V IN (V)
SEE FREQUENCY ADJUSTMENT DISCUSSION
FOR 12V IN TO 5V OUT AND 5V IN TO 3.3V OUT
CONVERSION
4600HV G14
0.610
0.605
0.600
0.595
V OSET vs Temperature
Start-Up Waveform, T A = –55°C
0.590
V IN = 12V
V OUT = 1.5V
I OUT = 10A
400 μ s/DIV
4600HV G16
–55
–25
5 35 65
95
125
TEMPERATURE ( ° C)
4600HV G15
4600hvfc
5
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