LM2575-5.0TB5T 데이터 시트보기 (PDF) - First Components International
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LM2575-5.0TB5T Datasheet PDF : 10 Pages
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LM2575 1.0A Step - Down Voltage Switching Regulators
Figure 1(b).Adjustable Output Voltage Versions
7V - 40V
Unregulated
DC Input
+VIN
1
LM2575-adj
GND 3
+
CIN
100 µF
ON/ OFF 5
Feedback
4
Output
2
L1
330 µH
D1
MBR360
+
COUT
330 µF
VOUT=5.0V
R2
L
O
A
D
R1
R2
VOUT = VREF ( 1 + R1 )
VOUT
R2 = R1 ( VREF -1)
where VREF = 1.23V, R1 between 1k and 5k.
Typical Performance Characteristics
Figure 2. Switch Saturation Voltage
1.2
2.0
1.0
TJ = - 55°C
1.5
TJ = - 25°C
0.8
1.0
TJ = 150°C
0.6
0.5
Figure 3. Dropout Voltage
ILOAD = 1A
DVOUT = 5%
RIND = 0.2W
ILOAD = 200mA
0.4
0
0.2 0.4 0.6 0.8 1.0
SWITCH CURRENT (A)
0
-75 -50 -25 0 25 50 75 100 125 150
JUNCTION TEMPERATURE (°C)
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