Linear ANALOG DEVICES DC2631A, Demo Manual, Page: 5 / 18

5
DEMO MANUAL
DC2631A-A/DC2631A-B
Rev. 0
QUICK START PROCEDURE
70%
75%
80%
85%
90%
95%
100%
0 10 20 30 40 50 60 70 80 90 100 110
EFFICIENCY
LOAD CURRENT (A)
DC2631A-A F04
V
IN
= 7V
V
IN
= 10V
V
IN
= 12V
V
IN
= 14V
COMPONENTS/CONDITIONS:
•
DrMOS = FDMF5820DC
• F
SW
= 400KHZ
•
L = WURTH 744301025 (0.25µH, 0.32M
Ω
)
• OTHER RAIL DISABLED
• EXTERNAL 5V BIAS APPLIED (EFFICIENCY INCLUDES BIAS POWER)
•
NO AIRFLOW
70%
75%
80%
85%
90%
95%
100%
0 10 20 30 40 50 60 70 80 90 100 110
EFFICIENCY
LOAD CURRENT (A)
DC2631A-A F05
V
IN
= 7V
V
IN
= 10V
V
IN
= 12V
V
IN
= 14V
70%
75%
80%
85%
90%
95%
100%
0 20 40 60 80 100 120 140 160 180 200 220
EFFICIENCY
LOAD CURRENT (A)
DC2631A-A F06
V
IN
= 7V
V
IN
= 10V
V
IN
= 12V
V
IN
= 14V
Figure 4. Efficiency of the 1.0V/100A Rail of the DC2631A-A
Figure 5. Efficiency of the 1.5V/100A Rail of the DC2631A-A
Figure 6. Efficiency of the 1.0V/200A Rail of the DC2631A-B
COMPONENTS/CONDITIONS:
• DrMOS = FDMF5820DC
• f
SW
= 400KHZ
• L = WURTH 744301025 (0.25µH, 0.32MΩ)
• OTHER RAIL DISABLED
• EXTERNAL 5V BIAS APPLIED
(EFFICIENCY INCLUDES BIAS POWER)
• NO AIRFLOW
COMPONENTS/CONDITIONS:
• DrMOS = FDMF5820DC
• f
SW
= 400KHZ
• L = WURTH 744301025 (0.25µH, 0.32MΩ)
• OTHER RAIL DISABLED
• EXTERNAL 5V BIAS APPLIED
(EFFICIENCY INCLUDES BIAS POWER)
• NO AIRFLOW
COMPONENTS/CONDITIONS:
• DrMOS = FDMF5820DC
• f
SW
= 400KHZ
• L = WURTH 744301025 (0.25µH, 0.32MΩ)
• EXTERNAL 5V BIAS APPLIED
(EFFICIENCY INCLUDES BIAS POWER)
• NO AIRFLOW