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LM2587SX-ADJ датащи(PDF) 6 Page - Texas Instruments

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номер детали LM2587SX-ADJ
подробное описание детали  LM2587 SIMPLE SWITCHER 5A Flyback Regulator
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производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
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LM2587SX-ADJ датащи(HTML) 6 Page - Texas Instruments

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LM2587
SNVS115D – APRIL 2000 – REVISED APRIL 2013
www.ti.com
LM2587-5.0 Electrical Characteristics
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 7(1)
VOUT
Output Voltage
VIN = 4V to 12V
5.0
4.80/4.75
5.20/5.25
V
ILOAD = 500 mA to 1.45A
ΔVOUT/
Line Regulation
VIN = 4V to 12V
20
50/100
mV
ΔVIN
ILOAD = 500 mA
ΔVOUT/
Load Regulation
VIN = 12V
20
50/100
mV
ΔILOAD
ILOAD = 500 mA to 1.45A
η
Efficiency
VIN = 12V, ILOAD = 750 mA
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
AVOL
Error Amp
VCOMP = 0.5V to 1.6V
165
99/49
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
LM2587 is used as shown in Figure 7 and Figure 8, 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.
LM2587-12 Electrical Characteristics
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 8(1)
VOUT
Output Voltage
VIN = 4V to 10V
12.0
11.52/11.40
12.48/12.60
V
ILOAD = 300 mA to 1.2A
ΔVOUT/
Line Regulation
VIN = 4V to 10V
20
100/200
mV
ΔVIN
ILOAD = 300 mA
ΔVOUT/
Load Regulation
VIN = 10V
20
100/200
mV
ΔILOAD
ILOAD = 300 mA to 1.2A
η
Efficiency
VIN = 10V, ILOAD = 1A
90
%
UNIQUE DEVICE PARAMETERS(2)
VREF
Output Reference
Measured at Feedback Pin
12.0
11.79/11.76
12.21/12.24
V
Voltage
VCOMP = 1.0V
ΔVREF
Reference Voltage
VIN = 4V to 40
7.8
mV
Line Regulation
GM
Error Amp
ICOMP = −30 μA to +30 μA
0.328
0.186
0.621
mmho
Transconductance
VCOMP = 1.0V
AVOL
Error Amp
VCOMP = 0.5V to 1.6V
70
41/21
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
LM2587 is used as shown in Figure 7 and Figure 8, 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.
6
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Product Folder Links: LM2587


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