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參數(shù)資料
| 型號： | LM2674LD-3.3 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator |
| 中文描述： | 1.25 A SWITCHING REGULATOR, 275 kHz SWITCHING FREQ-MAX, DSO16 |
| 封裝： | LLP-16 |
| 文件頁數(shù)： | 3/26頁 |
| 文件大?。?/td> | 947K |
| 代理商： | LM2674LD-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.
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
45V
0.1V
≤
V
SH
≤
6V
1V
V
SW
+ 8V
0.3V
≤
V
FB
≤
14V
2 kV
Internally Limited
Storage Temperature Range
Lead Temperature
M Package
Vapor Phase (60s)
Infrared (15s)
N Package (Soldering, 10s)
LLP Package (See AN-1187)
Maximum Junction Temperature
65C to +150C
+215C
+220C
+260C
+150C
Operating Ratings
Supply Voltage
6.5V to 40V
Junction Temperature Range
40C
≤
T
J
≤
+125C
Electrical Characteristics
LM2674-3.3
Specifications with standard type face are for T
J
= 25C, and those with
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
%
LM2674-5.0
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
%
LM2674-12
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
%
LM2674-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
V
OUT
Programmed for 5V
(see Circuit of
Figure 3
)
V
IN
= 6.5V to 40V, I
LOAD
= 20 mA to 250 mA
V
OUT
Programmed for 5V
(see Circuit of
Figure 3
)
1.210
1.192/
1.174
1.228/
1.246
V
V
FB
Feedback
Voltage
1.210
1.192/
1.174
1.228/
1.246
V
L
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM2674LD-5.0 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator |
| LM2674LD-5.0/NOPB | 功能描述:IC REG BUCK 5V 0.5A 16-LLP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:SIMPLE SWITCHER® 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3.3V 輸入電壓:4.5 V ~ 24 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:125mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 包裝:Digi-Reel® 供應商設備封裝:SOT-6 其它名稱:MAX1836EUT33#TG16DKR |
| LM2674LDADJ | 制造商: 功能描述: 制造商:undefined 功能描述: |
| LM2674LD-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(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| LM2674LD-ADJ/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 |
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