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LM2575 数据表(PDF) 3 Page - First Components International

部件名 LM2575
功能描述  1.0A Step - Down Voltage Switching Regulators 1A output current
PDF  10 Pages
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制造商  FCI [First Components International]
网页  http://www.cotra.com.tw/
标志 FCI - First Components International

LM2575 数据表(HTML) 3 Page - First Components International

  LM2575 Datasheet HTML 1Page - First Components International LM2575 Datasheet HTML 2Page - First Components International LM2575 Datasheet HTML 3Page - First Components International LM2575 Datasheet HTML 4Page - First Components International LM2575 Datasheet HTML 5Page - First Components International LM2575 Datasheet HTML 6Page - First Components International LM2575 Datasheet HTML 7Page - First Components International LM2575 Datasheet HTML 8Page - First Components International LM2575 Datasheet HTML 9Page - First Components International Next Button
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ABSOLUTE MAXIMUM RATINGS
1
+
5
3
4
2
1.23V
Band-Gap
Reference
52kHz
Oscillator
Reset
Thermal
Shutdown
Current
Limit
Feed-
back
VIN
+
-
+
-
Fixed Gain
Error AMP
Comparator
Driver
1 AMP
Switch
Internal
Regulator
ON/OFF
ON/OFF
Output
L1
D1
GND
C
out
+
L
O
A
D
BLOCK DIAGRAM
Unregulated
DC Input
C
IN
V
Output Voltage to Ground (Steady State)
Power Dissipation
Storage Temperature Range
Maximum Junction Temperature
Lead Temperature (Soldering, 10 sec.)
°C
°C
°C
Maximum Supply Voltage
VALUE
UNIT
ON/OFF Pin Input Voltage
45
-0.3
V V
IN
Internally Limited
-65 to + 150
+150
+260
-1.0
V
V
-
R2
1.0K
R1
VOUT
VOUT
3.3V, R2 = 1.7K
5V, R2 = 3.1K
12V, R2 = 8.84K
15V, R2 = 11.3K
For ADJ. Version
R1 = Open, R2 = 0W
RECOMMENDED OPERATING CONDITIONS
Temperature Range
VALUE
UNIT
Supply Voltage
40
V
-40
TJ 125
°C
PARAMETER
PARAMETER
LM2575 1.0A Step - Down Voltage Switching Regulators



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