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參數(shù)資料
| 型號： | LM2587T-12 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SIMPLE SWITCHER 5A Flyback Regulator |
| 中文描述： | 5 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, PSFM5 |
| 封裝： | BENT STAGGERED, TO-220, 5 PIN |
| 文件頁數(shù)： | 2/26頁 |
| 文件大?。?/td> | 676K |
| 代理商： | LM2587T-12 |
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Input Voltage
Switch Voltage
Switch Current (Note 2)
Compensation Pin Voltage
Feedback Pin Voltage
Storage Temperature Range
Lead Temperature
(Soldering, 10 sec.)
0.4V
≤
V
IN
≤
45V
0.4V
≤
V
SW
≤
65V
Internally Limited
0.4V
≤
V
COMP
≤
2.4V
0.4V
≤
V
FB
≤
2 V
OUT
65C to +150C
260C
Maximum Junction
Temperature (Note 3)
Power Dissipation (Note 3)
Minimum ESD Rating
(C = 100 pF, R = 1.5 k
150C
Internally Limited
2 kV
Operating Ratings
Supply Voltage
Output Switch Voltage
Output Switch Current
Junction Temperature Range
4V
≤
V
IN
≤
40V
0V
≤
V
SW
≤
60V
I
SW
≤
5.0A
40C
≤
T
J
≤
+125C
LM2587-3.3
Electrical Characteristics
Specifications with standard type face are for T
J
= 25C, and those in
bold type face
apply over full
Operating Temperature
Range.
Unless otherwise specified, V
IN
= 5V.
Symbol
SYSTEM PARAMETERS
Test Circuit of Figure 2 (Note 4)
V
OUT
Output Voltage
Parameters
Conditions
Typical
Min
Max
Units
V
IN
= 4V to 12V
I
LOAD
= 400 mA to 1.75A
V
IN
= 4V to 12V
I
LOAD
= 400 mA
V
IN
= 12V
I
LOAD
= 400 mA to 1.75A
V
IN
= 12V, I
LOAD
= 1A
3.3
3.17/
3.14
3.43/
3.46
V
V
OUT
/
V
IN
V
OUT
/
I
LOAD
η
UNIQUE DEVICE PARAMETERS
(Note 5)
V
REF
Output Reference
Voltage
V
REF
Reference Voltage
Line Regulation
G
M
Error Amp
Transconductance
A
VOL
Error Amp
Voltage Gain
Line Regulation
20
50/
100
mV
Load Regulation
20
50/
100
mV
Efficiency
75
%
Measured at Feedback Pin
V
COMP
= 1.0V
V
IN
= 4V to 40V
3.3
3.242/
3.234
3.358/
3.366
V
2.0
mV
I
COMP
= 30 μA to +30 μA
V
COMP
= 1.0V
V
COMP
= 0.5V to 1.6V
R
COMP
= 1.0 M
(Note 6)
1.193
0.678
2.259
mmho
260
151/
75
V/V
LM2587-5.0
Electrical Characteristics
Specifications with standard type face are for T
J
= 25C, and those in
bold type face
apply over full
Operating Temperature
Range.
Unless otherwise specified, V
IN
= 5V.
Symbol
SYSTEM PARAMETERS
Test Circuit of Figure 2 (Note 4)
V
OUT
Output Voltage
Parameters
Conditions
Typical
Min
Max
Units
V
IN
= 4V to 12V
I
LOAD
= 500 mA to 1.45A
V
IN
= 4V to 12V
I
LOAD
= 500 mA
V
IN
= 12V
I
LOAD
= 500 mA to 1.45A
V
IN
= 12V, I
LOAD
= 750 mA
5.0
4.80/
4.75
5.20/
5.25
V
V
OUT
/
V
IN
V
OUT
/
I
LOAD
η
Line Regulation
20
50/
100
mV
Load Regulation
20
50/
100
mV
Efficiency
80
%
www.national.com
2
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PDF描述 |
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| LM2587S-ADJ | SIMPLE SWITCHER 5A Flyback Regulator |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM2587T12 | 制造商:Texas Instruments 功能描述:SWITCHING REG 5A 12V 2587 TO2205 |
| LM2587T-12/LB02 | 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Up 4V to 40V 5-Pin(5+Tab) TO-220 Rail |
| LM2587T-12/LB03 | 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Up 4V to 40V 5-Pin(5+Tab) TO-220 Rail |
| LM2587T-12/NOPB | 功能描述:直流/直流開關轉換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| LM2587T-12/NOPB | 制造商:Texas Instruments 功能描述:DC/DC Converter IC |
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