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