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LM2587SX-ADJ Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
No. de pieza LM2587SX-ADJ
Descripción Electrónicos  SIMPLE SWITCHER짰 5A Flyback Regulator
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Fabricante Electrónico  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2587SX-ADJ Datasheet(HTML) 3 Page - National Semiconductor (TI)

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LM2587-5.0
Electrical Characteristics (Continued)
Symbol
Parameters
Conditions
Typical
Min
Max
Units
Voltage
V
COMP = 1.0V
∆V
REF
Reference Voltage
V
IN = 4V to 40V
3.3
mV
Line Regulation
G
M
Error Amp
I
COMP = −30 µA to +30 µA
0.750
0.447
1.491
mmho
Transconductance
V
COMP = 1.0V
A
VOL
Error Amp
V
COMP = 0.5V to 1.6V
165
99/49
V/V
Voltage Gain
R
COMP = 1.0 M
Ω (Note 6)
LM2587-12
Electrical Characteristics
Specifications with standard type face are for T
J = 25˚C, and those in bold type face apply over full Operating Temperature
Range. Unless otherwise specified, V
IN =5V.
Symbol
Parameters
Conditions
Typical
Min
Max
Units
SYSTEM PARAMETERS Test Circuit of Figure 3 (Note 4)
V
OUT
Output Voltage
V
IN = 4V to 10V
12.0
11.52/11.40
12.48/12.60
V
I
LOAD = 300 mA to 1.2A
∆V
OUT/
Line Regulation
V
IN = 4V to 10V
20
100/200
mV
∆V
IN
I
LOAD = 300 mA
∆V
OUT/
Load Regulation
V
IN = 10V
20
100/200
mV
∆I
LOAD
I
LOAD = 300 mA to 1.2A
η
Efficiency
V
IN = 10V, ILOAD =1A
90
%
UNIQUE DEVICE PARAMETERS (Note 5)
V
REF
Output Reference
Measured at Feedback Pin
12.0
11.79/11.76
12.21/12.24
V
Voltage
V
COMP = 1.0V
∆V
REF
Reference Voltage
V
IN = 4V to 40V
7.8
mV
Line Regulation
G
M
Error Amp
I
COMP = −30 µA to +30 µA
0.328
0.186
0.621
mmho
Transconductance
V
COMP = 1.0V
A
VOL
Error Amp
V
COMP = 0.5V to 1.6V
70
41/21
V/V
Voltage Gain
R
COMP = 1.0 M
Ω (Note 6)
LM2587-ADJ
Electrical Characteristics
Specifications with standard type face are for T
J = 25˚C, and those in bold type face apply over full Operating Temperature
Range. Unless otherwise specified, V
IN =5V.
Symbol
Parameters
Conditions
Typical
Min
Max
Units
SYSTEM PARAMETERS Test Circuit of Figure 3 (Note 4)
V
OUT
Output Voltage
V
IN = 4V to 10V
12.0
11.52/11.40
12.48/12.60
V
I
LOAD = 300 mA to 1.2A
∆V
OUT/
Line Regulation
V
IN = 4V to 10V
20
100/200
mV
∆V
IN
I
LOAD = 300 mA
∆V
OUT/
Load Regulation
V
IN = 10V
20
100/200
mV
∆I
LOAD
I
LOAD = 300 mA to 1.2A
η
Efficiency
V
IN = 10V, ILOAD =1A
90
%
UNIQUE DEVICE PARAMETERS (Note 5)
V
REF
Output Reference
Measured at Feedback Pin
1.230
1.208/1.205
1.252/1.255
V
Voltage
V
COMP = 1.0V
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