Analog Devices DC3054A-B, Демонстрационное руководство

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DEMO MANUAL
DC3054A-B
Rev. 0
CIRCUIT SCHEMATIC
BOARD PHOTO
dc3054ab CS01a
1µF
0201
EN
SW
SW
V
IN
V
IN
PGND
47.5k 10pF
10nF
V
IN
4.7µF 4.7µF
150nH
18.2k
4.7µF
×2
V
OUT
1.8V
4A
V
IN
= 2.25V TO 5.5V
FB
AGND
PGOOD
LTC3308B
1µF
0201
MODE/SYNC
RT
f
OSC
= 6.6MHz
High Efficiency, 6.6MHz, 1.8V 4A Step-Down Converter
LTC3308B 3.3V to 1.8V Efficiency and
Power Loss DC3054A-B in Burst Mode
DFE18SANR24MGOL
EFFICIENCY
POWER LOSS
V
IN
= 3.3V
V
OUT
= 1.8V
f
SW
= 6.6 MHz
I
OUT
(A)
0.001 0.01 0.1 1 4
0
10
20
30
40
50
60
70
80
90
100
0.0001
0.001
0.01
0.1
1
EFFICIENCY (%)
POWER LOSS (W)
dc3054ab CS01b