Analog Devices DC2629A, Демонстрационное руководство

Страница: 2 / 10

2
DEMO MANUAL DC2629A
Rev. 0
BOARD PHOTO
1.2V 10A Step-Down Converter
V
IN
2.25V
TO 5.5V
22μF
1M
249k
100k
VIN
0.033μF
10k
220pF
L = XEL4030-101ME, COILCRAFT
VIN RT
AGND
FB
SW
PGOOD
VIN
EN
MODE/SYNC
SSTT
ITH
LTC3310S
PGND
100nH
0.22μF 22μF
15pF
140k
100k
22μF
x3
V
OUT
1.2V
10A
0.22μF
DC2629A TA01a
LOAD CURRENT (A)
0
EFFICIENCY (%)
100
10
90
70
50
30
80
60
40
POWER LOSS (W)
20
0
5 9 3 7
DC2629 TA01b
10 4 8 2 6 1
V
IN
= 3.3V
V
OUT
= 1.2V
f
OSC
= 2MHz
3.0
0.3
2.7
2.1
1.5
0.9
2.4
1.8
1.2
0.6
0
POWER LOSS
EFFICIENCY
Efficiency vs Load Current