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LM2586SX-3.3 Datasheet(PDF) 3 Page - Texas Instruments

No. de pieza LM2586SX-3.3
Descripción Electrónicos  LM2586 SIMPLE SWITCHER 3A Flyback Regulator with Shutdown
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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LM2586SX-3.3 Datasheet(HTML) 3 Page - Texas Instruments

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LM2586
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SNVS121D – MAY 1996 – REVISED APRIL 2013
Operating Ratings
Supply Voltage
4V
≤ VIN ≤ 40V
Output Switch Voltage
0V
≤ VSW ≤ 60V
Output Switch Current
ISW ≤ 3.0A
Junction Temp. Range
−40°C ≤ TJ ≤ +125°C
Electrical Characteristics LM2586-3.3
Specifications with standard type face are for TJ = 25°C, and those in bold type face apply over full Operating Temperature
Range. Unless otherwise specified, VIN = 5V.
Symbol
Parameters
Conditions
Typical
Min
Max
Units
SYSTEM PARAMETERS Test Circuit of Figure 20(1)
VOUT
Output Voltage
VIN = 4V to 12V
3.3
3.17/3.14
3.43/3.46
V
ILOAD = 0.3 to 1.2A
ΔVOUT/
Line Regulation
VIN = 4V to 12V
20
50/100
mV
ΔVIN
ILOAD = 0.3A
ΔVOUT/
Load Regulation
VIN = 12V
20
50/100
mV
ΔILOAD
ILOAD = 0.3A to 1.2A
η
Efficiency
VIN = 5V, ILOAD = 0.3A
76
%
UNIQUE DEVICE PARAMETERS (2)
VREF
Output Reference
Measured at Feedback Pin
3.3
3.242/3.234
3.358/3.366
V
Voltage
V = 1.0V
ΔVREF
Reference Voltage
VIN = 4V to 40V
2.0
mV
Line Regulation
GM
Error Amp
ICOMP = −30 μA to +30 μA
1.193
0.678
2.259
mmho
Transconductance
VCOMP = 1.0V
AVOL
Error Amp
VCOMP = 0.5V to 1.6V
260
151/75
V/V
Voltage Gain
RCOMP = 1.0 MΩ
(3)
(1)
External components such as the diode, inductor, input and output capacitors can affect switching regulator performance. When the
LM2586 is used as shown in Figure 20 and Figure 21, system performance will be as specified by the system parameters.
(2)
All room temperature limits are 100% production tested, and all limits at temperature extremes are specified via correlation using
standard Statistical Quality Control (SQC) methods.
(3)
A 1.0 M
Ω resistor is connected to the compensation pin (which is the error amplifier output) to ensure accuracy in measuring AVOL.
LM2586-5.0
Symbol
Parameters
Conditions
Typical
Min
Max
Units
SYSTEM PARAMETERS Test Circuit of COMPFigure 20
(1)
VOUT
Output Voltage
VIN = 4V to 12V
5.0
4.80/4.75
5.20/5.25
V
ILOAD = 0.3A to 1.1A
ΔVOUT/
Line Regulation
VIN = 4V to 12V
20
50/100
mV
ΔVIN
ILOAD = 0.3A
ΔVOUT/
Load Regulation
VIN = 12V
20
50/100
mV
ΔILOAD
ILOAD = 0.3A to 1.1A
η
Efficiency
VIN = 12V, ILOAD = 0.6A
80
%
UNIQUE DEVICE PARAMETERS (2)
VREF
Output Reference
Measured at Feedback Pin
5.0
4.913/4.900
5.088/5.100
V
Voltage
VCOMP = 1.0V
ΔVREF
Reference Voltage
VIN = 4V to 40V
3.3
mV
Line Regulation
GM
Error Amp
ICOMP = −30 μA to +30 μA
0.750
0.447
1.491
mmho
Transconductance
VCOMP = 1.0V
(1)
External components such as the diode, inductor, input and output capacitors can affect switching regulator performance. When the
LM2586 is used as shown in Figure 20 and Figure 21, system performance will be as specified by the system parameters.
(2)
All room temperature limits are 100% production tested, and all limits at temperature extremes are specified via correlation using
standard Statistical Quality Control (SQC) methods.
Copyright © 1996–2013, Texas Instruments Incorporated
Submit Documentation Feedback
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