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參數資料
| 型號： | LM2585SX-ADJ |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SIMPLE SWITCHER 3A Flyback Regulator |
| 中文描述： | 7 A SWITCHING REGULATOR, 125 kHz SWITCHING FREQ-MAX, PSSO5 |
| 封裝： | TO-263, 5 PIN |
| 文件頁數： | 2/25頁 |
| 文件大?。?/td> | 627K |
| 代理商： | LM2585SX-ADJ |
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
≤
3.0A
40C
≤
T
J
≤
+125C
Electrical Characteristics
LM2585-3.3
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
Parameters
Conditions
SYSTEM PARAMETERS
Test Circuit of Figure 2 (Note 4)
V
OUT
Output Voltage
V
IN
= 4V to 12V
I
LOAD
= 0.3A to 1.2A
V
OUT
/
Line Regulation
V
IN
= 4V to 12V
V
IN
I
LOAD
= 0.3A
V
OUT
/
Load Regulation
V
IN
= 12V
I
LOAD
I
LOAD
= 0.3A to 1.2A
η
Efficiency
V
IN
= 5V, I
LOAD
= 0.3A
UNIQUE DEVICE PARAMETERS
(Note 5)
V
REF
Output Reference
Measured at Feedback Pin
Voltage
V
COMP
= 1.0V
V
REF
Reference Voltage
V
IN
= 4V to 40V
Line Regulation
G
M
Error Amp
I
COMP
= 30 μA to +30 μA
Transconductance
V
COMP
= 1.0V
A
VOL
Error Amp
V
COMP
= 0.5V to 1.6V
Voltage Gain
R
COMP
= 1.0 M
(Note 6)
Typical
Min
Max
Units
3.3
3.17/
3.14
3.43/
3.46
V
20
50/
100
mV
20
50/
100
mV
76
%
3.3
3.242/
3.234
3.358/
3.366
V
2.0
mV
1.193
0.678
2.259
mmho
260
151/
75
V/V
LM2585-5.0
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
= 0.3A to 1.1A
V
IN
= 4V to 12V
I
LOAD
= 0.3A
V
IN
= 12V
I
LOAD
= 0.3A to 1.1A
V
IN
= 12V, I
LOAD
= 0.6A
5.0
4.80/
4.75
5.20/
5.25
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
Line Regulation
20
50/
100
mV
Load Regulation
20
50/
100
mV
Efficiency
80
%
Measured at Feedback Pin
V
COMP
= 1.0V
V
IN
= 4V to 40V
5.0
4.913/
4.900
5.088/
5.100
V
3.3
mV
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM2585SX-ADJ/NOPB | 功能描述:直流/直流開關轉換器 3-AMP FLYBACK REG 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 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| LM2585T-12 | 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 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| LM2585T-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 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| LM2585T-3.3 | 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 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| LM2585T-3.3/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 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
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