4
dc2269aaf
DEMO MANUAL DC2269A-A
USB to I2C/PMBus Dongle
DC2086A
LTM4676 Demo
Board DC2269A-‐A
Input Power
Supply
USB Cable
VIN
4-‐PIN (J1)
Connector
Load0
Vout0
Vout1
Load1
Quick start proceDure
Figure 4. Demo Setup with PC
LOAD CURRENT (A)
0
EFFICIENCY (%)
85
95
DC2269A-A F05
75
65
2
4
6
8
10
12
1
3
5
7
9
11
13
100
80
90
70
V
OUT
= 1V
V
OUT
= 1.2V
V
OUT
= 1.5V
V
OUT
= 1.8V
V
OUT
= 2.5V
V
OUT
= 3.3V
V
IN
= 5V
f
SW
= 500kHz
CCM
LOAD CURRENT (A)
0
EFFICIENCY (%)
80
90
DC2269A-A F06
70
60
2
4
6
8
10
12
1
3
5
7
9
11
13
95
75
85
65
V
OUT
= 1V
V
OUT
= 1.2V
V
OUT
= 1.5V
V
OUT
= 1.8V
V
OUT
= 2.5V
V
OUT
= 3.3V
V
OUT
= 5V
V
IN
= 12V
f
SW
= 500kHz
CCM
Figure 5. Efficiency vs Load Current at V
IN
= 5V
Figure 6. Efficiency vs Load Current at V
IN
= 12V
