Linear Technology DC1668A-B, Демонстрационное руководство

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dc1668abf
DEMO MANUAL DC1668A-B
QUICK START PROCEDURE
Figure 2. Measured Efficiency at 12V
IN
, 500kHz
Figure 4. Measured Load Step Response
Figure 3. Thermal Capture at 12V
IN
, 1.8V
OUT
, 40A, 500kHz
No Forced Airflow (Convection). T
A
= 29°C
Figure 5. Measured Output Voltage Ripple (20MHz BW)
LOAD CURRENT (A)
0
EFFICIENCY (%)
25 20 15
1668ab F02
95
90
10 5 40 35 30
85
80
75
70
3.3V
OUT
2.5V
OUT
1.8V
OUT
1.5V
OUT
1.2V
OUT
1V
OUT
1668ab F04
20A/DIV
100mV/DIV
V
OUT
I
OUT
STEP
V
OUT
= 1.8V
I
OUT
DC = 20A
I
OUT
STEP = 20A
f
SW
= 500kHz
1668ab F05
50mV/DIV
V
OUT
V
OUT
= 1.8V
I
OUT
= 40A
f
SW
= 500kHz