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QUICK START PROCEDURE
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
0
0.5
1.0
1.5
LOAD CURRENT (A)
Figure 3. Measured Efficiency for Different Channels
V
OUT1
50mV/DIV
I
OUT1
2A/DIV
V
= 5.5V
IN1
V
= 1.8V
OUT1
V
= 1.2V AT NO LOAD
OUT2
V
= 1.0V AT NO LOAD
O3(LDO)
CONTINUOUS CURRENT MODE (CCM)
0A TO 3.4A LOAD STEP ON V
C
= 100μF CERAMIC (1210, X5R, 6.3V) + 22μF CERAMIC (1206, X5R, 6.3V)
OUT1
Figure 4. Measured Load Transient Response for V
V
OUT2
20mV/DIV
I
OUT2
1A/DIV
V
= 5.5V
20μs/DIV
IN2
V
= 1.2V
OUT2
V
= 1.8V AT NO LOAD
OUT1
V
= 1.0V AT NO LOAD
O3(LDO)
CONTINUOUS CURRENT MODE (CCM)
0A TO 2.2A LOAD STEP ON V
C
= 100μF CERAMIC (1210, X5R, 6.3V) + 22μF CERAMIC (1206, X5R, 6.3V)
OUT2
Figure 5. Measured Load Transient Response for V
DEMO MANUAL DC1367A
V
= 5.5V, V
= 1.8V
IN1
OUT 1
CHANNEL 2 AND 3 OFF
V
= 5.5V, V
= 1.2V
IN2
OUT 2
CHANNEL 1 AND 3 OFF
V
= 1.2V, V
= 1.0V
IN3
OUT 3
CHANNEL 1 AND 2 OFF
2.0
3.0
3.5
2.5
4.0
DC1376 F03
20μs/DIV
DC1367 F04
OUT1
OUT1
DC1367 F05
OUT2
OUT2
dc1367af
3
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