參數資料
型號: LM2679T-3.3
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 穩(wěn)壓器
英文描述: 392 Series Industrial Potentiometer, Conductive Plastic Element, PC Terminals, 0.5 W Power Rating, 2.5 kOhm Resistance Value
中文描述: 8.1 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, ZFM7
封裝: TO-220, 7 PIN
文件頁數: 3/24頁
文件大?。?/td> 355K
代理商: LM2679T-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
www.national.com
3
相關PDF資料
PDF描述
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
LM2679S-ADJ SIMPLE SWITCHER 5A Step-Down Voltage Regulator with Adjustable Current Limit
LM2696MXA 3A, Constant On Time Buck Regulator
LM2696MXAX 3A, Constant On Time Buck Regulator
相關代理商/技術參數
參數描述
LM2679T-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 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT
LM2679T-5.0/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
LM2679TADJ 制造商:NATIONAL 功能描述:New
LM2679T-ADJ 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
LM2679T-ADJ 制造商:Texas Instruments 功能描述:SWITCHING REG 5A ADJ 2679 TO2207