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參數(shù)資料
| 型號： | LM2679S-3.3 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SIMPLE SWITCHER 5A Step-Down Voltage Regulator with Adjustable Current Limit |
| 中文描述： | 8.1 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PSSO7 |
| 封裝： | TO-263, 7 PIN |
| 文件頁數(shù)： | 3/24頁 |
| 文件大?。?/td> | 355K |
| 代理商： | LM2679S-3.3 |
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 Supply Voltage
Softstart Pin Voltage
Switch Voltage to Ground
Boost Pin Voltage
Feedback Pin Voltage
Power Dissipation
ESD (Note 2)
45V
0.1V to 6V
1V to V
IN
V
SW
+ 8V
0.3V to 14V
Internally Limited
2 kV
Storage Temperature Range
Soldering Temperature
Wave
Infrared
Vapor Phase
65C to 150C
4 sec, 260C
10 sec, 240C
75 sec, 219C
Operating Ratings
Supply Voltage
Junction Temperature Range (T
J
)
8V to 40V
40C to 125C
Electrical Characteristics
range of operation, 40C to 125C. Specifications appearing in normal type apply for T
A
= T
J
= 25C. R
ADJ
= 5.6K
LM2679-3.3
Limits appearing in
bold type face
apply over the entire junction temperature
Symbol
Parameter
Conditions
Typical
(Note 3)
3.3
82
Min
Max
(Note 4)
3.366/
3.399
Units
(Note 4)
3.234/
3.201
V
OUT
η
Output Voltage
Efficiency
V
IN
= 8V to 40V, 100mA
≤
I
OUT
≤
5A
V
IN
= 12V, I
LOAD
= 5A
V
%
LM2679-5.0
Symbol
Parameter
Conditions
Typical
(Note 3)
5.0
84
Min
Max
(Note 4)
5.100/
5.150
Units
(Note 4)
4.900/
4.850
V
OUT
η
Output Voltage
Efficiency
V
IN
= 8V to 40V, 100mA
≤
I
OUT
≤
5A
V
IN
= 12V, I
LOAD
= 5A
V
%
LM2679-12
Symbol
Parameter
Conditions
Typical
(Note 3)
12
92
Min
Max
(Note 4)
12.24/
12.36
Units
(Note 4)
11.76/
11.64
V
OUT
η
Output Voltage
Efficiency
V
IN
= 15V to 40V, 100mA
≤
I
OUT
≤
5A
V
IN
= 24V, I
LOAD
= 5A
V
%
LM2679-ADJ
Symbol
Parameter
Conditions
Typ
Min
Max
(Note 4)
Units
(Note 3)
(Note 4)
V
FB
Feedback
Voltage
Efficiency
V
IN
= 8V to 40V, 100mA
≤
I
OUT
≤
5A
V
OUT
Programmed for 5V
V
IN
= 12V, I
LOAD
= 5A
1.21
1.186/
1.174
1.234/
1.246
V
η
84
%
L
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相關PDF資料 |
PDF描述 |
|---|---|
| LM2679S-5.0 | SIMPLE SWITCHER 5A Step-Down Voltage Regulator with Adjustable Current Limit |
| LM2679T-12 | 392 Series Industrial Potentiometer, Conductive Plastic Element, PC Terminals, 0.5 W Power Rating, 250 Ohm Resistance Value |
| LM2679T-3.3 | 392 Series Industrial Potentiometer, Conductive Plastic Element, PC Terminals, 0.5 W Power Rating, 2.5 kOhm Resistance Value |
| LM2679T-5.0 | SIMPLE SWITCHER 5A Step-Down Voltage Regulator with Adjustable Current Limit |
| LM2679T-ADJ | 392 Series Industrial Potentiometer, Conductive Plastic Element, PC Terminals, 0.5 W Power Rating, 500 Ohm Resistance Value |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM2679S-5.0 | 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 |
| LM2679S-5.0/NOPB | 功能描述:直流/直流開關轉換器 5A STEP-DOWN VLTG 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(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| LM2679S5.0NOPB | 制造商:National Semiconductor 功能描述:Conv DC-DC Single Step Down 8V to 40V 8-Pin(7+Tab) TO-263 Rail |
| LM2679S50 | 制造商:Texas Instruments 功能描述:SWITCHING REG 5A 5.0V SMD 2679 |
| LM2679SADJ | 制造商:Texas Instruments 功能描述: |
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