lm2596中文资料

我见过的最好的LM2940 与TL431中文资料

常用的电源有串联型线性稳压电源（LM2940、7805等）和开关型稳压电源（LM2596、LM2575等）两大类。前者具有纹波小、电路结构简单的优点，但是效率较低，功耗大；后者功耗小，效率高，但电路却比较复杂，电路的纹波大。对于单片机，需要提供稳定的5V电源，由于LM2940的稳压的线性度非常好，所以选用LM2940-5单独对其进行供电；而其它模块则需要通过较大的电流，而LM2596-5，转换效率高，带载能力大，缺点是其纹波电压大，不适合做单片机电源，不过对其它模块供电还是能保证充电的电源。利用LM2940-5和LM2596-5对控制系统和执行部分开供电，可以有效地防止各器件之间发生干扰，以及电流不足的问题，使得系统能够稳定地工作。 具体大家也可以去查一下这些芯片的具体资料 送上经典电路 介绍: TL431是一个有良好的热稳定性能的三端可调分流基准电压源。它的输出电压用两个电阻就可以任意地设置到从Vref（2.5V）到36V范围内的任何值。该器件的典型动态阻抗为0.2Ω，在很多应用中可以用它代替齐纳二极管，例如，数字电压表，运放电路、可调压电源，开关电源等等。 特点： ?可编程输出电压为36V ?电压参考误差：±0.4％，典型值@25℃（TL431B） ?低动态输出阻抗，典型0.22Ω ?负载电流能力1.0mA to 100mA ?等效全范围温度系数50 ppm/℃典型

? 温度补偿操作全额定工作温度范围?低输出噪声电压 图1 TO92封装引脚图 图2 8脚封装引脚功能

图3 SOP-8 贴片封装引脚图 图4 TL431符号及内部方框图

图5 TL431内部电路图 MAXIMUM RATINGS (Full operating ambient temperature range applies, unless

中文资料__LM2596电源降压调整器

LM2596电源降压调整器（150KHz，3A）020 英文文章名：LM2596 SIMPLE SWITCHER? Power Converter 150 kHz 3A Step-Down Voltage Regulator 文章出处：https://www.wendangku.net/doc/5b3600185.html,版本号：DS012583 日期：2002年5月 摘录人：黄明强摘录日期：2007年5月3日 是否好买估计：生产中心正在使用 价格： 概述： LM2596系列开关电压调节器是降压型电源管理单片集成电路，能够输出3A的驱动电流，同时具有很好的线性和负载调节特性。固定输出版本有3.3V、5V、12V，还有一个输出可调版本。 添加少量的外部元件就可以使用该电压调节器。该器件内部集成有频率补偿和固定频率发生器。开关频率为150KHz，与低频开关调节器相比较，可以使用更小规格的滤波元件。其封装形式包括标准的5脚TO-220封装和5脚TO-263表贴封装。 由于该器件可以使用通用的标准电感，这更优化了LM2596的使用，极大地简化了开关电源电路的设计。 该器件还有其他一些特点：在特定的输入电压和输出负载的条件下，输出电压的误差可以保证在±4%的范围内，振荡频率误差在±15%的范围内；可以用仅80μA的待机电流，实现外部断电；具有自我保护电路（一个两级降频限流保护和一个在异常情况下断电的过温完全保护电路）。 特征： ※ 3.3V、5V、12V的固定电压输出和可调电压输出 ※可调输出电压范围1.2V～37V，±4% ※封装形式：TO-220（T）和TO-263（S） ※保证输出负载电流3A ※输入电压可高达40V ※仅需4个外接元件 ※很好的线性和负载调节特性 ※150KHz固定频率的内部振荡器 ※TTL关断能力 ※低功耗待机模式，I Q的典型值为80μA ※高转换效率 ※使用容易购买的标准电感 ※具有过热保护和限流保护功能 应用： ※简易高效率降压调节器 ※在卡上的开关电压调节器 ※正到负电压转换器 专利号：5382918 典型电路（固定输出电压版本）：

LM2596R中文资料

元器件交易网https://www.wendangku.net/doc/5b3600185.html,
3.0A, 150Khz, Step-Down Switching Regulator
FEATURES
3.3V, 5.0V, 12V, 15V, and Adjustable Output Versions Adjustable Version Output Voltage Range, 1.23 to 37V +/- 4%. Maximum Over Line and Load Conditions Guaranteed 3.0A Output Current Wide Input Voltage Range Requires Only 4 External Components 150Khz Fixed Frequency Internal Oscillator TTL Shutdown Capability, Low Power Standby Mode High Efficiency Uses Readily Available Standard Inductors Thermal Shutdown and Current Limit Protection Moisture Sensitivity Level(MSL) Equals1 TO-263(D2) TO-220V TO-220
LM2596
Applications
Simple High-Efficiency Step-Down(Buck) Regulator Efficient Pre-Regulator for Linear Regulators On-Card Switching Regulators Positive to Negative Converter(Buck-Boost) Negative Step-Up Converters Power Supply for Battery Chargers
1. 2. 3. 4. 5. Vin Output Ground Feedback On/Off
DESCRIPTION
The LM2596 series of regulators are monolithic integrated circuits ideally suited for easy and convenient design of a step-down switching regualtor(buck converter). All circuits of this series are capable of driving a 3.0A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5.0V,12V, 15V, and an adjustable output version.
ORDERING INFORMATION
Device LM2596T-X.X LM2596TV-X.X LM2596R Marking LM2596T-X.X LM2596T-X.X LM2596R-X.X Package TO-220 TO-220V TO-263
These regulatiors were designed to minimize the number of externalcomponents to simplify the power supply design. Standard series of inductors optimized for use with the LM2576 are offered by several different inductor manufacturers. Since the LM2596 converter is a switch-mode power supply, its efficiency is significantly higher in comparison with popular three-terminal limear reguators, especially with higher input voltages. In many cases, the power dissipated is so low that no heatsink is required or its size could be reduced dramatically. A standard series of inductors optimized for use with the LM2596 are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies. The LM2596 features include a guaranteed +/- 4% tolerance on output voltage within specified input voltages and output load conditions, and +/-15% on the oscillator frequency (+/- 2% over 0oC to 125 oC). External shutdown is included, featuring 80 uA(typical) standby current. The output switch includes cycle-bycycle current limiting, as well as thermal shutdown for full protection under fault conditions.
HTC
1
Oct 2004 - Rev 0

AMS3106AM1-ADJ中文资料

元器件交易网https://www.wendangku.net/doc/5b3600185.html,
Advanced Monolithic Systems
FEATURES
? 0.6V to 6V in 100mV increments Voltages Available ? Active High On/Off Control ? Output Current of 500mA ? Quiescent Current of <1μA when in Shutdown ? Low Dropout Voltage of 250mV at 500mA ? Wide Supply Voltage Range 1.5V to 15V ? Short Circuit and Thermal Protection ? Power Good function option ? Ceramic Output Capacitor OK ? Reference bypass for low noise
AMS3106
500mA LOW DROPOUT VOLTAGE REGULATOR
RoHS compliant
APPLICATIONS
? Battery Powered Systems ? Cellular Phones ? Cordless Telephones ? Portable (Notebook) Computers ? Portable Instrumentation ? Portable Consumer Equipment ? Personal Communication Equipment ? Radio Control Systems ? Low Voltage Systems ? MP3 Player
GENERAL DESCRIPTION
The AMS3106 is a 500mA low dropout fixed voltage regulator, featuring an internal electronic switch controlled by TTL or CMOS logic levels. When the Enable pin is pulled to a logic high level, the device is in the ON state. Designed specifically for battery powered applications where low quiescent current, low dropout and low standby current are required, the AMS3106 is ideal to use in standby power systems. Like other regulators the AMS3106 series also includes internal current limiting and thermal shutdown. A high precision 0.6V voltage reference enables the device to provide very low output voltages. A key feature includes a reference bypass pin to improve its low-noise performance for fixed output versions. Ideal for space critical applications, the AMS3106 is available in the 5-pin SOT-23 surface mount package and 8-pin SOIC. The Power Good option is used when the Output Voltage drop must be detected. If the Output Voltage drops by approximately 15% of its nominal value, the open collector on PG pin will pull down to Low state.
ORDERING INFORMATION
PACKAGE TYPE 5L SOT-23 AMS3106AM1-XXBP AMS3106M1-XXBP AMS3106AM1XXPG AMS3106M1-XXPG AMS3106AM1-ADJ AMS3106M1-ADJ SO-8 AMS3106AS-XXBP AMS3106S-XXBP AMS3106AS-XXBP AMS3106S-XXBP AMS3106AS-ADJ AMS3106S-ADJ 5 Lead SOT-23 (M1)
PIN CONNECTIONS (Top View) 5 Lead SOT-23 (M1) 5 Lead SOT-23 (M1)
XX
FIXED VOLTAGE and Bypass
FIXED VOLTAGE And Power Good
ADJ VOLTAGE
SO-8 (S)
=specify the output voltage required SO-8 (S) SO-8 (S)
FIXED VOLTAGE And Bypass
FIXED VOLTAGE And Power Good
ADJ VOLTAGE
Advanced Monolithic Systems, Inc.
https://www.wendangku.net/doc/5b3600185.html,
Phone (925) 443-0722
Fax (925) 443-0723

LM2596S-5.0资料

LM2596 https://www.wendangku.net/doc/5b3600185.html, SNVS124C–NOVEMBER1999–REVISED APRIL2013 LM2596SIMPLE SWITCHER?Power Converter150kHz 3A Step-Down Voltage Regulator Check for Samples:LM2596 FEATURES DESCRIPTION The LM2596series of regulators are monolithic ? 3.3V,5V,12V,and Adjustable Output Versions integrated circuits that provide all the active functions ?Adjustable Version Output Voltage Range,for a step-down(buck)switching regulator,capable of 1.2V to37V±4%Max Over Line and Load driving a3A load with excellent line and load Conditions regulation.These devices are available in fixed output voltages of3.3V,5V,12V,and an adjustable output ?Available in TO-220and TO-263Packages version. ?Ensured3A Output Load Current Requiring a minimum number of external ?Input Voltage Range Up to40V components,these regulators are simple to use and ?Requires Only4External Components include internal frequency compensation,and a ?Excellent Line and Load Regulation fixed-frequency oscillator. Specifications The LM2596series operates at a switching frequency ?150kHz Fixed Frequency Internal Oscillator of150kHz thus allowing smaller sized filter ?TTL Shutdown Capability components than what would be needed with lower frequency switching regulators.Available in a ?Low Power Standby Mode,I Q Typically80μA standard5-lead TO-220package with several ?High Efficiency different lead bend options,and a5-lead TO-263 ?Uses Readily Available Standard Inductors surface mount package. ?Thermal Shutdown and Current Limit A standard series of inductors are available from Protection several different manufacturers optimized for use with the LM2596series.This feature greatly simplifies the APPLICATIONS design of switch-mode power supplies. ?Simple High-Efficiency Step-Down(Buck)Other features include a ensured±4%tolerance on Regulator output voltage under specified input voltage and output load conditions,and±15%on the oscillator ?On-Card Switching Regulators frequency.External shutdown is included,featuring ?Positive to Negative Converter typically80μA standby current.Self protection features include a two stage frequency reducing current limit for the output switch and an over temperature shutdown for complete protection under fault conditions.(1) (1)?Patent Number5,382,918. Typical Application (Fixed Output Voltage Versions) 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. SWITCHER is a registered trademark of Texas Instruments. All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date.Copyright?1999–2013,Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty.Production processing does not necessarily include testing of all parameters.

LM2596TADJG中文资料

LM2596 Product Preview 3.0 A, Step-Down Switching Regulator The LM2596 regulator is monolithic integrated circuit ideally suited for easy and convenient design of a step?down switching regulator (buck converter). It is capable of driving a 3.0 A load with excellent line and load regulation. This device is available in adjustable output version and it is internally compensated to minimize the number of external components to simplify the power supply design. Since LM2596 converter is a switch?mode power supply, its efficiency is significantly higher in comparison with popular three?terminal linear regulators, especially with higher input voltages. The LM2596 operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Available in a standard 5?lead TO?220 package with several different lead bend options, and D2PAK surface mount package. The other features include a guaranteed $4% tolerance on output voltage within specified input voltages and output load conditions, and $15% on the oscillator frequency. External shutdown is included, featuring 80 m A (typical) standby current. Self protection features include switch cycle?by?cycle current limit for the output switch, as well as thermal shutdown for complete protection under fault conditions. Features ?Adjustable Output Versions 1.23 V ? 37 V ?Guaranteed 3.0 A Output Load Current ?Wide Input V oltage Range up to 40 V ?150 kHz Fixed Frequency Internal Oscillator ?TTL Shutdown Capability ?Low Power Standby Mode, typ 80 m A ?Thermal Shutdown and Current Limit Protection ?Internal Loop Compensation ?Moisture Sensitivity Level (MSL) Equals 1 ?Pb?Free Packages are Available Applications ?Simple High?Efficiency Step?Down (Buck) Regulator ?Efficient Pre?Regulator for Linear Regulators ?On?Card Switching Regulators ?Positive to Negative Converter (Buck?Boost)?Negative Step?Up Converters ?Power Supply for Battery Chargers This document contains information on a product under development. ON Semiconductor reserves the right to change or discontinue this product without notice.See detailed ordering and shipping information in the package dimensions section on page 11 of this data sheet. ORDERING INFORMATION TO?220 TV SUFFIX CASE 314B Heatsink surface connected to Pin 3 TO?220 T SUFFIX CASE 314D Pin 1.V in 2.Output 3.Ground 4.Feedback 5.ON/OFF D2PAK D2T SUFFIX CASE 936A Heatsink surface (shown as terminal 6 in case outline drawing) is connected to Pin 3 5 https://www.wendangku.net/doc/5b3600185.html, See general marking information in the device marking section on page 11 of this data sheet. DEVICE MARKING INFORMATION

nipponsale1999sample(中文)

日本航运交易所 双方同意本协议将在本合同此处包含的条款和条件进行 卖家签字卖家签字 ———————— 职务职务 1999年日本买卖船协议 卖方（1栏）与买方（2栏）在此达成卖方出售、买方买进船舶名为（3栏）的买卖船舶协议，船舶详情见4栏到8栏，且上述详情在买方进行船舶外部检查及船舶登记级别（9、10栏）检测后，已被买方已接受，协议条款及规定见下文。 1、购买价格 该船舶购买价格按11栏记载。 2、付款 （a）为确保协议充分履行的安全起见，买方应在从本协议签订起3个银行日（坐落于15栏的银 行办理商务交易事宜的受理日）内，将购买价格的10%作为保证金汇款与由卖方提名，以买卖双方名义开户的银行。保证金的所有利息归买方所有。银行对保证金的收费将平等由买卖双方承担。保证金将作为购买价格的一部分，与剩余的90%（详见下文）以同一方式付给卖方。 （b）在交付准备完成通知书由卖方按本协议第七条提供后，买方应立即将剩余的90%购买价款 电汇到上述银行。余款应与保证金在交付接受协议由买卖双方代表人适当签署、船舶交付时，一同付给卖方。 3、文件材料 （a）在交付船舶时，卖方应将以下文件提供给买方：（i）卖据（一份公正机构具体证明该船舶无负载、留置权、抵押权、优先权的单证）；和（ii）一封来自卖方的信件，内容是卖方承担将在船舶交付之后尽可能快提供一份从4栏记载

项下除名的除名证明；和 （iii）其他买卖双方可能达成的文件。 （b）在交付时，买卖双方应使生效并交换一份交付接受协议，以此来确认交付船舶的时间和地 点。 （c）交割会应在12栏记载的地点举行。 4、交付地点和时间 （a）卖方应确保在交付地（13栏）内船舶已做好交付准备，不早于也不晚于14栏记载的时间， 最迟日及取消日。 （b）卖方应保持通知买方船舶的路线，并发出30日、15日、7日和3日内容为交付准备完成的 预期时间和地点的通知。 （c）在取消日或取消日前，船舶没有准备好交付时，买方有权取消该买卖协议，但是须在从取 消日起两个工作日（非15栏记载地点的周六、周日或公共假日）内以书面形式提出。然而，如果不能交付船舶是因卖方不能控制的事件引起，那么取消日将根据该时间造成的时间损失做相应的延长，但最长延长不得超过30日。 （d）在买方没有根据上一次条款行使撤销协议权时，他将有权指定一个新的船舶交付日，但须 在从撤销日起的两个工作日内书面指定，且该交付日将成为14栏记载的新的取消日。然而，如果买方未指定，则不再有取消日，那么卖方将有权尽快交付。 （e）尽管卖方已尽职调查，但如果卖方预测到船舶在取消日（无论是最初约定的取消日，还是 根据上一次条款后设定的取消日）前仍不能准备好交付的，那么卖方可以书面通知买方说明他们预期的交付准备完成日，并提议该日为新的取消日。在收到卖方的书面通知后，买方有权在收到该通知起的2个工作日内书面取消本买卖船舶协议。如果买方不行使取消权，那么卖方提议的新的日期将成为新的取消日记载于14栏。 5、交付条件 （a）卖方交付船舶时，船舶情况应与9栏记载下的条件充分的一致，自然磨损除外；但应避免 在交付时未偿贷款及共同海损影响船舶目前及将来的等级，影响国内或国际贸易证书的清洁和效力。 （b）当根据本协议将船舶进行交付并且买方已经接收时，卖方将对所有关于船舶描述的故障和 缺陷或交付时任何的不论是显见或潜在的船舶上的缺陷不予负责。 6、水下检测 （a）根据以下条款，卖方可无需进坞而交付船舶。 （b）交付船舶前，买方有权雇佣经5栏船级社批准的潜水员执行对船舶夏季载重线以下的水下 部分进行检查，且需卖方安排的检验员在场。该检测（如有）由买方安排，风险、费用也由买方承担且不得干扰船舶的运营及交付计划。 （c）买方应在收到7日通知单之日（第4条b次条）起的2日内书面通知卖方他们企图对

中文资料 LM2596电源降压调整器

LM2596电源降压调整器（150KHz，3A） 英文文章名：LM2596 SIMPLE SWITCHER? Power Converter 150 kHz 3A Step-Down Voltage Regulator 文章出处：https://www.wendangku.net/doc/5b3600185.html,版本号：DS012583 日期：2002年5月 摘录人：黄明强摘录日期：2007年5月3日 是否好买估计：生产中心正在使用 价格： 概述： LM2596系列开关电压调节器是降压型电源管理单片集成电路，能够输出3A的驱动电流，同时具有很好的线性和负载调节特性。固定输出版本有3.3V、5V、12V，还有一个输出可调版本。 添加少量的外部元件就可以使用该电压调节器。该器件内部集成有频率补偿和固定频率发生器。开关频率为150KHz，与低频开关调节器相比较，可以使用更小规格的滤波元件。其封装形式包括标准的5脚TO-220封装和5脚TO-263表贴封装。 由于该器件可以使用通用的标准电感，这更优化了LM2596的使用，极大地简化了开关电源电路的设计。 该器件还有其他一些特点：在特定的输入电压和输出负载的条件下，输出电压的误差可以保证在±4%的范围内，振荡频率误差在±15%的范围内；可以用仅80μA的待机电流，实现外部断电；具有自我保护电路（一个两级降频限流保护和一个在异常情况下断电的过温完全保护电路）。 特征： ※ 3.3V、5V、12V的固定电压输出和可调电压输出 ※可调输出电压范围1.2V～37V，±4% ※封装形式：TO-220（T）和TO-263（S） ※保证输出负载电流3A ※输入电压可高达40V ※仅需4个外接元件 ※很好的线性和负载调节特性 ※150KHz固定频率的内部振荡器 ※TTL关断能力 ※低功耗待机模式，I Q的典型值为80μA ※高转换效率 ※使用容易购买的标准电感 ※具有过热保护和限流保护功能 应用： ※简易高效率降压调节器 ※在卡上的开关电压调节器 ※正到负电压转换器 专利号：5382918 典型电路（固定输出电压版本）：