Linear Technology DC1588A Demo Manual page 3

QUICK START PROCEDURE
Effi ciency vs Load Current at 3.3V
Forced Continuous Mode
95
90
85
80
2.5V
1.8V
1.5V
1.2V
75
0 3
OUTPUT CURRENT (A)
,
IN
1.0V
OUT OUT
0.9V
OUT OUT
0.8V
OUT OUT
OUT
9 12 15
6
DC1588A F03a
Figure 2. Measured Supply Effi ciency with Different V
V
OUT
50mV/DIV
I
OUT
6.5A/DIV
V = 5V
IN
V = 1.5V
OUT
0A TO 7A LOAD STEP
C = 4 100μF CERAMIC, C7 = 0.1μF
OUT
Figure 3. Measured Load Transient Response (0A to 7A Step)
DEMO MANUAL DC1588A
Effi ciency vs Load Current at 5V
Forced Continuous Mode
95
90
85
80
75
0 3
and V
IN
DC1588 F04
50μs/DIV
,
IN
3.3V 1.2V
OUT OUT
2.5V 1.0V
OUT OUT
1.8V 0.9V
OUT OUT
1.5V 0.8V
OUT OUT
9 12 15
6
OUTPUT CURRENT (A)
DC1588A F03b
OUT
dc1588af
3