150KHZ 3A PWM BUCK DC/DC CONVERTER
FSP3123
ELECTRICAL CHARACTERISTICS (CONTINUED)
Symbol
FSP3123-ADJ
V
FB
η
FSP3123-3.3V
V
OUT
η
FSP3123-5.0V
V
OUT
η
FSP3123-12V
V
OUT
Parameter
Output Feedback
Efficiency
Output voltage
Efficiency
Output voltage
Efficiency
Output voltage
Conditions
5V≤V
IN
≤22V
0.2A≤I
LOAD
≤3A
V
OUT
programmed for
3V
V
IN
=12V, I
LOAD
=3A
5.5V≤V
IN
≤22V
0.2A≤I
LOAD
≤3A
V
IN
=12V,
I
LOAD
=3A
8V≤V
IN
≤22V
0.2A≤I
LOAD
≤3A
V
IN
=12V,
I
LOAD
=3A
15V≤V
IN
≤22V
0.2A≤I
LOAD
≤3A
Typ.
1.23
75
3.3
75
5
80
12
11.52/11.4
12.48/12.6
4.8/4.75
5.2/5.25
3.168/3.135
3.432/3.465
Limit
1.193/1.18
1.267/1.28
Unit
V
V
MIN
V
MAX
%
V
V
MIN
V
MAX
%
V
V
MIN
V
MAX
%
V
V
MIN
V
MAX
%
η
Efficiency
V
IN
=15V, I
LOAD
=3A
90
Specifications with
boldface type
are for full operating temperature range, the other type are for TJ=25
º
C.
BLOCK DIAGRAM
3/11
2007-6-12
FOSLINK [ FOSLINK SEMICONDUCTOR CO.,LTD ]
