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參數資料
| 型號： | LM2677SX-12 |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Voltage-Mode SMPS Controller |
| 中文描述： | 電壓模式開關電源控制器 |
| 文件頁數： | 3/25頁 |
| 文件大?。?/td> | 495K |
| 代理商： | LM2677SX-12 |
Absolute Maximum Ratings
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Note 1)
Supply Voltage
ON/OFF Pin Voltage
Switch Voltage to Ground
Boost Pin Voltage
Feedback Pin Voltage
ESD Susceptibility
Human Body Model (Note 2)
Power Dissipation
Storage Temperature Range
45V
0.1V
≤
V
SH
≤
6V
1V
V
SW
+ 8V
0.3V
≤
V
FB
≤
14V
2 kV
Internally Limited
65C to +150C
Lead Temperature
M Package
Vapor Phase (60s)
Infrared (15s)
N Package (Soldering, 10s)
LLP Package (See AN-1187)
Maximum Junction Temperature
+215C
+220C
+260C
+150C
Operating Ratings
Supply Voltage
Temperature Range
6.5V to 40V
40C
≤
T
J
≤
+125C
Electrical Characteristics
LM2671-3.3
Specifications with standard type face are for T
J
= 25C, and those in
bold type face
apply over
full
Operating Temperature Range.
Symbol
Parameter
Conditions
Typical
(Note 4)
Min
Max
(Note 5)
Units
(Note 5)
SYSTEM PARAMETERS
Test Circuit Figure 2 (Note 3)
V
OUT
Output Voltage
V
OUT
Output Voltage
η
Efficiency
V
IN
= 8V to 40V, I
LOAD
= 20 mA to 500 mA
V
IN
= 6.5V to 40V, I
LOAD
= 20 mA to 250 mA
V
IN
= 12V, I
LOAD
= 500 mA
3.3
3.3
86
3.251/
3.201
3.251/
3.201
3.350/
3.399
3.350/
3.399
V
V
%
LM2671-5.0
Symbol
Parameter
Conditions
Typical
(Note 4)
Min
Max
(Note 5)
Units
(Note 5)
SYSTEM PARAMETERS
Test Circuit Figure 2 (Note 3)
V
OUT
Output Voltage
V
OUT
Output Voltage
η
Efficiency
V
IN
= 8V to 40V, I
LOAD
= 20 mA to 500 mA
V
IN
= 6.5V to 40V, I
LOAD
= 20 mA to 250 mA
V
IN
= 12V, I
LOAD
= 500 mA
5.0
5.0
90
4.925/
4.850
4.925/
4.850
5.075/
5.150
5.075/
5.150
V
V
%
LM2671-12
Symbol
Parameter
Conditions
Typical
(Note 4)
Min
Max
(Note 5)
Units
(Note 5)
SYSTEM PARAMETERS
Test Circuit Figure 2 (Note 3)
V
OUT
Output Voltage
η
Efficiency
V
IN
= 15V to 40V, I
LOAD
= 20 mA to 500 mA
V
IN
= 24V, I
LOAD
= 500 mA
12
94
11.82/
11.64
12.18/
12.36
V
%
LM2671-ADJ
Symbol
Parameter
Conditions
Typ
Min
Max
(Note 5)
Units
(Note 4)
(Note 5)
SYSTEM PARAMETERS
Test Circuit Figure 3 (Note 3)
V
FB
Feedback
Voltage
V
IN
= 8V to 40V, I
LOAD
= 20 mA to 500 mA
1.210
1.192/
1.174
1.228/
1.246
V
V
OUT
Programmed for 5V
(see Circuit of Figure 3)
L
www.national.com
3
相關PDF資料 |
PDF描述 |
|---|---|
| LM2677SX-3.3 | Voltage-Mode SMPS Controller |
| LM2677SX-5.0 | Voltage-Mode SMPS Controller |
| LM2677SX-ADJ | Voltage-Mode SMPS Controller |
| LM2670SX-12 | Voltage-Mode SMPS Controller |
| LM2670SX-3.3 | Voltage-Mode SMPS Controller |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LM2677SX-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 |
| LM2677SX-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 |
| LM2677SX-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 |
| LM2677SX-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 |
| LM2677SX-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 |
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