SAMHOP Microelectronics Corp.
SM8313F
52KHz, 3A PWM Buck Switching Regulator
TO220-5L
TO263-5L
TO220-5L
2.5
3.5
28
Junction to
case
oC/W
oC/W
ΘJC
ΘJA
Thermal Resistance
Thermal Resistance
With copper area of
approximately 3 in2
Junction to
ambient
TO263-5L
23
ꢀ Electrical Characteristics (Continued)
Symbol
Parameter
Conditions
Typ.
Limit
Unit
5V < VIN < 40V
0.2A < ILOAD < 3A
VOUT programmed for
3V
V
VMIN
VMAX
%
Output
Feedback
VFB
1.235
1.193/1.18
1.267/1.28
SM8313F-ADJ
η
Efficiency
Output voltage
Efficiency
VIN = 12V, ILOAD=3A
75
3.3
75
5
V
VMIN
VMAX
5.5V < VIN < 40V
0.2A < ILOAD < 3A
3.168/3.135
3.432/3.465
VOUT
SM8313F-3.3V
SM8313F-5V
SM8313F-12V
η
VIN = 12V, ILOAD=3A
%
V
VMIN
VMAX
8V < VIN < 40V
0.2A < ILOAD < 3A
4.8/4.75
5.2/5.25
VOUT
Output voltage
Efficiency
η
VIN = 12V, ILOAD=3A
80
12
90
%
V
VMIN
VMAX
15V < VIN < 40V
0.2A < ILOAD < 3A
11.52/11.4
12.48/12.6
VOUT
Output voltage
Efficiency
η
VIN = 15V, ILOAD = 3A
%
Specifications with boldface type are for full operating temperature range, the other type are for TJ=25ºC.
4
V1.0 May 17 ,2007
SAMHOP [ SAMHOP MICROELECTRONICS CORP. ]
