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Datasheet > 电源电路 > 开关式稳压器或控制器> LM2670SX-ADJ/NOPB
LM2670SX-ADJ/NOPB PDF预览

LM2670SX-ADJ/NOPB

更新时间： 2024-11-17 11:08:07
品牌 Logo 应用领域
德州仪器 - TI 开关控制器开关式稳压器开关式控制器电源电路开关式稳压器或控制器
页数 文件大小 规格书
36页 1459K
描述
具有同步的 SIMPLE SWITCHER 高效 3A 降压电压稳压器 | KTW | 7 | -40 to 125

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中文翻译

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LM2670SX-ADJ/NOPB 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：D2PAK
包装说明：TO-263,针数：4
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：0.76模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：VOLTAGE-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：40 V最小输入电压：8 V
标称输入电压：12 VJESD-30 代码：R-PSSO-G7
JESD-609代码：e3长度：10.16 mm
湿度敏感等级：3功能数量：1
端子数量：7最高工作温度：125 °C
最低工作温度：-40 °C最大输出电流：5.4 A
最大输出电压：37 V最小输出电压：1.23 V
封装主体材料：PLASTIC/EPOXY封装代码：TO-263
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：245认证状态：Not Qualified
座面最大高度：4.8 mm表面贴装：YES
切换器配置：BUCK最大切换频率：400 kHz
温度等级：AUTOMOTIVE端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：1.27 mm
端子位置：SINGLE处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：8.635 mmBase Number Matches：1

LM2670SX-ADJ/NOPB 数据手册

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LM2670  
www.ti.com  
SNVS036J –APRIL 2000–REVISED APRIL 2013  
®
LM2670 SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync  
Check for Samples: LM2670  
1
FEATURES  
DESCRIPTION  
The LM2670 series of regulators are monolithic  
integrated circuits which provide all of the active  
functions for a step-down (buck) switching regulator  
capable of driving up to 3A loads with excellent line  
and load regulation characteristics. High efficiency  
(>90%) is obtained through the use of a low ON-  
resistance DMOS power switch. The series consists  
of fixed output voltages of 3.3V, 5V and 12V output  
version.  
2
•
Efficiency Up to 94%  
•
Simple and Easy to Design with (Using Off-  
The-Shelf External Components)  
•
•
150 mΩ DMOS Output Switch  
3.3V, 5V and 12V Fixed Output and Adjustable  
(1.2V to 37V) Versions  
•
•
50μA Standby Current When Switched OFF  
±2% Maximum Output Tolerance Over Full  
Line and Load Conditions  
The SIMPLE SWITCHER concept provides for a  
complete design using a minimum number of external  
components. The switching clock frequency can be  
provided by an internal fixed frequency oscillator  
(260KHz) or from an externally provided clock in the  
range of 280 kHz to 400 kHz which allows the use of  
physically smaller sized components. A family of  
standard inductors for use with the LM2670 are  
available from several manufacturers to greatly  
simplify the design process. The external Sync clock  
provides direct and precise control of the output ripple  
frequency for consistent filtering or frequency  
spectrum positioning.  
•
•
Wide Input Voltage Range: 8V to 40V  
External Sync Clock Capability (280kHz to  
400kHz)  
•
•
260 kHz Fixed Frequency Internal Oscillator  
−40 to +125°C Operating Junction Temperature  
Range  
APPLICATIONS  
•
Simple to Design, High Efficiency (>90%) Step-  
Down Switching Regulators  
The LM2670 series also has built in thermal  
shutdown, current limiting and an ON/OFF control  
input that can power down the regulator to a low  
50μA quiescent current standby condition. The output  
voltage is ensured to a ±2% tolerance.  
•
Efficient System Pre-Regulator for Linear  
Voltage Regulators  
•
•
Battery Chargers  
Communications and Radio Equipment  
Regulator with Synchronized Clock Frequency  
Typical Application  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
SIMPLE SWITCHER, Switchers Made Simple are registered trademarks of Texas Instruments.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2000–2013, Texas Instruments Incorporated  
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LM2670SX-ADJ/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM2673SX-ADJ/NOPB TI

完全替代

 具有可调节电流限制功能的 8V 至 40V、3A SIMPLE SWITCHER® 降压转
LM2670S-ADJ/NOPB TI

完全替代

 具有同步的 SIMPLE SWITCHER 高效 3A 降压电压稳压器 | KTW | 7
LM2670SX-ADJ TI

完全替代

 LM2670 SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync

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