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LM2594 Datasheet(PDF) 7 Page - ON Semiconductor

No. de pieza LM2594
Descripción Electrónicos  0.5 A, Step-Down Switching Regulator
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Fabricante Electrónico  ONSEMI [ON Semiconductor]
Página de inicio  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

LM2594 Datasheet(HTML) 7 Page - ON Semiconductor

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LM2594
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7
0.4 A
0
0
A
B
C
100
ms/div
2
ms/div
Figure 14. Switching Waveforms
Figure 15. Load Transient Response
Vout = 5 V
A: Output Pin Voltage, 10 V/div
B: Switch Current, 0.4 A/div
C: Inductor Current, 0.4 A/div, AC−Coupled
D: Output Ripple Voltage, 50 mV/div, AC−Coupled
Horizontal Time Base: 2.0 ms/div
10 V
0
0.8 A
0.4 A
100 mV
Output
Voltage
Change
0
0.5 A
0.1 A
0
0.8 A
- 100 mV
Load
Current
TYPICAL PERFORMANCE CHARACTERISTICS (Circuit of Figure 16)
D
Figure 16. Typical Test Circuit
D1
1N5822
L1
100
mH
Output
8
4
Feedback
Cout
220
mF
Cin
100
mF
LM2594
7
5
6ON/OFF
GND
Vin
Load
Vout
5.0 V/0.5 A
Adjustable Output Voltage Versions
Vout + Vref 1.0 )
R2
R1
R2
+ R1
Vout
V
ref
1.0
Where Vref = 1.23 V, R1
between 1.0 k and 5.0 k
R2
R1
8.5 V - 40 V
Unregulated
DC Input
CFF


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