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参数资料
| 型号： | LM2674-ADJMWC |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 1.25 A SWITCHING REGULATOR, 275 kHz SWITCHING FREQ-MAX, UUC |
| 封装： | WAFER |
| 文件页数： | 23/31页 |
| 文件大小： | 596K |
| 代理商： | LM2674-ADJMWC |
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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
45V
ON/OFF Pin Voltage
0.1V
≤ V
SH ≤ 6V
Switch Voltage to Ground
1V
Boost Pin Voltage
V
SW +8V
Feedback Pin Voltage
0.3V
≤ V
FB ≤ 14V
ESD Susceptibility
Human Body Model (Note 2)
2 kV
Power Dissipation
Internally Limited
Storage Temperature Range
65C to +150C
Lead Temperature
M Package
Vapor Phase (60s)
+215C
Infrared (15s)
+220C
N Package (Soldering, 10s)
+260C
LLP Package (See AN-1187)
Maximum Junction Temperature
+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
Min
Max
Units
SYSTEM PARAMETERS Test Circuit
V
OUT
Output Voltage
V
IN = 8V to 40V, ILOAD = 20 mA to 500 mA
3.3
3.251/3.201
3.350/3.399
V
OUT
Output Voltage
V
IN = 6.5V to 40V, ILOAD = 20 mA to 250 mA
3.3
3.251/3.201
3.350/3.399
V
η
Efficiency
V
IN = 12V, ILOAD = 500 mA
86
%
LM2674-5.0
Symbol
Parameter
Conditions
Typical
Min
Max
Units
SYSTEM PARAMETERS Test Circuit
V
OUT
Output Voltage
V
IN = 8V to 40V, ILOAD = 20 mA to 500 mA
5.0
4.925/4.850
5.075/5.150
V
OUT
Output Voltage
V
IN = 6.5V to 40V, ILOAD = 20 mA to 250 mA
5.0
4.925/4.850
5.075/5.150
V
η
Efficiency
V
IN = 12V, ILOAD = 500 mA
90
%
LM2674-12
Symbol
Parameter
Conditions
Typical
Min
Max
Units
SYSTEM PARAMETERS Test Circuit
V
OUT
Output Voltage
V
IN = 15V to 40V, ILOAD = 20 mA to 500 mA
12
11.82/11.64
12.18/12.36
V
η
Efficiency
V
IN = 24V, ILOAD = 500 mA
94
%
LM2674-ADJ
Symbol
Parameter
Conditions
Typ
Min
Max
Units
SYSTEM PARAMETERS Test Circuit
V
FB
Feedback
Voltage
V
IN = 8V to 40V, ILOAD = 20mAto500 mA
V
OUT Programmed for 5V
(see Circuit of
1.210
1.192/1.174
1.228/1.246
V
LM2674
www.national.com
3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2674LD-12 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator |
| LM2674LD-12/NOPB | 功能描述:IC REG BUCK 12V 0.5A 16LLP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:SIMPLE SWITCHER® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:3.3V 输入电压:4.5 V ~ 24 V PWM 型:- 频率 - 开关:- 电流 - 输出:125mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 包装:Digi-Reel® 供应商设备封装:SOT-6 其它名称:MAX1836EUT33#TG16DKR |
| LM2674LD-3.3 | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LM2674LD-3.3/NOPB | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LM2674LD-5.0 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator |
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