LTM4603HV
TYPICAL PERFOR A CE CHARACTERISTICS (See Figure 20 for all curves)
V OUT
0.5V/DIV
I IN
0.5A/DIV
Start-Up, I OUT = 0A
V OUT
0.5V/DIV
I IN
0.5A/DIV
Start-Up, I OUT = 6A
(Resistive Load)
V OUT
0.5V/DIV
I IN
2A/DIV
Short-Circuit Protection,
I OUT = 0A
V IN = 12V
V IN = 12V
1ms/DIV
V OUT = 1.5V
C OUT = 1x 22 μ F, 6.3V CERAMIC
1x 330 μ F, 4V SANYO POSCAP
SOFT-START = 3.9nF
4603HV G09
1ms/DIV
V OUT = 1.5V
C OUT = 1x 22 μ F, 6.3V CERAMIC
1x 330 μ F, 4V SANYO POSCAP
SOFT-START = 3.9nF
4603HV G10
V IN = 12V 100 μ s/DIV
V OUT = 1.5V
C OUT = 1x 22 μ F, 6.3V CERAMIC
1x 330 μ F, 4V SANYO POSCAP
SOFT-START = 3.9nF
4603HV G11
Short-Circuit Protection,
I OUT = 6A
5.5
5.0
V IN to V OUT Step-Down Ratio
3.3V OUTPUT WITH
82.5k FROM V OUT
V OUT
0.5V/DIV
I IN
2A/DIV
4.5
4.0
3.5
3.0
2.5
2.0
1.5
TO f SET
5V OUTPUT WITH
150k RESISTOR
ADDED FROM f SET
TO GND
5V OUTPUT WITH
NO RESISTOR ADDED
FROM f SET TO GND
2.5V OUTPUT
V IN = 12V 100 μ s/DIV
V OUT = 1.5V
C OUT = 1x 22 μ F, 6.3V CERAMIC
1x 330 μ F, 4V SANYO POSCAP
SOFT-START = 3.9nF
4603 G12
1.0
0.5
0
0
4
8 12 16 20
INPUT VOLTAGE (V)
24
28
1.8V OUTPUT
1.5V OUTPUT
1.2V OUTPUT
4603HV G13
4603hvf
6
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