150Khz, 3A PWM Buck Switching Regulator
Typical Performance Characteristics (Continued)
Minimum Operating Supply Voltage
5.0
THRESHOLD VOLTAGE (V)
SM8313
ON/OFF Threshold Voltage
5.0
4.0
3.0
2.0
1.0
0.0
SUPPLY VOLTAGE (V)
4.0
3.0
2.0
1.0
0.0
V
OUT
=1.23V
I
LOAD
=120mA
-50 -25
0
25
50
75 100 125
-50 -25
0
25
50
75 100 125
JUNCTION TEMPERATURE (
o
C)
JUNCTION TEMPERATURE (
o
C)
ON/OFF Pin Current (Sinking)
150.0
FREQUENCY (kHz)
Switch Frequency
200.0
120.0
CURRENT (uA)
V
IN
=40V
-40
o
C T
J
125
o
C
150.0
100.0
50.0
0.0
90.0
60.0
30.0
0.0
1.4
5
10
15
20 22
23
24
25
-50 -25
0
25
50
75
100
125
ON/OFF PIN VOLTAGE (V)
JUNCTION TEMPERATURE (
o
C)
Feedback Pin Bias Current
50.0
BIAS CURRENT (nA)
40.0
30.0
20.0
10.0
0.0
-50 -25
0
25
50
75
100 125
Adjustable Version Only
JUNCTION TEMPERATURE(
o
C)
6/10
SAMHOP [ SAMHOP MICROELECTRONICS CORP. ]
