Linear Technology DC1688B-A Manual page 4

DEMO MANUAL DC1688B-A
Quick start proceDure
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Figure 3. Measured Efficiency at 12V
V = 1.8V
OUT
I DC = 15A
OUT
I STEP = 15A
OUT
f = 500kHz
SW
Figure 5. Measured Load Step Response
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3.3V
OUT
2.5V
OUT
1.8V
OUT
1.5V
OUT
1.2V
OUT
1V
OUT
5 10 15 20 25 30
LOAD CURRENT (A)
DC1668ba F03
, 500kHz
IN
V
OUT
(100mV/DIV)
I STEP (10A/DIV)
OUT
Figure 4. Thermal Capture at 12V
500kHz No Forced Airflow (Convection). T
V (50mV/DIV)
OUT
DC1668ba F05
V = 1.8V
OUT
I = 30A
OUT
f = 500kHz
SW
Figure 6. Measured Output Voltage Ripple (20MHz BW)
DC1668ba F04
, 1.8V , 30A,
IN OUT
= 29°C.
A
DC1668ba F06
dc1668baf