Datasheet Texas Instruments LM5574 — Даташит
| Производитель | Texas Instruments |
| Серия | LM5574 |
SIMPLE SWITCHERВ® 75V, 0.5A Step-Down Switching Regulator
Datasheets
LM5574/LM5574Q SIMPLE SWITCHER® 75V, 0.5A Step-Down Switching Regulator datasheet
PDF, 957 Кб, Версия: F, Файл опубликован: 4 апр 2013
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Цены
 Купить LM5574 на РадиоЛоцман.Цены — от 75 до 786 ₽47 предложений от 27 поставщиков Cтаб.напр.импульсный Step-Down 0.5A Uвх=6...75В Uвых=1.23...70В, Fраб=50...500КГц, синхронизаци, плавный пуск, КПД до 90% | |||
| LM5574MTX Texas Instruments | 75 ₽ | ||
| LM5574MTX/NOPB Texas Instruments | от 89 ₽ | ||
| LM5574MT/NOPB Texas Instruments | по запросу | ||
| LM5574QMTX/NOPB Texas Instruments | по запросу | ||
Статус
| LM5574MT | LM5574MT/NOPB | LM5574MTX/NOPB | |
|---|---|---|---|
| Статус продукта | Не рекомендуется для новых разработок | В производстве | В производстве |
| Доступность образцов у производителя | Да | Нет | Да |
Корпус / Упаковка / Маркировка
| LM5574MT | LM5574MT/NOPB | LM5574MTX/NOPB | |
|---|---|---|---|
| N | 1 | 2 | 3 |
| Pin | 16 | 16 | 16 |
| Package Type | PW | PW | PW |
| Industry STD Term | TSSOP | TSSOP | TSSOP |
| JEDEC Code | R-PDSO-G | R-PDSO-G | R-PDSO-G |
| Package QTY | 92 | 92 | 2500 |
| Carrier | TUBE | TUBE | LARGE T&R |
| Маркировка | MT | LM5574 | LM5574 |
| Width (мм) | 4.4 | 4.4 | 4.4 |
| Length (мм) | 5 | 5 | 5 |
| Thickness (мм) | 1 | 1 | 1 |
| Pitch (мм) | .65 | .65 | .65 |
| Max Height (мм) | 1.2 | 1.2 | 1.2 |
| Mechanical Data | Скачать | Скачать | Скачать |
Параметры
| Parameters / Models | LM5574MT | LM5574MT/NOPB | LM5574MTX/NOPB |
|---|---|---|---|
| Control Mode | Current Mode | Current Mode | Current Mode |
| Duty Cycle(Max), % | 95 | 95 | 95 |
| Iout(Max), A | 0.5 | 0.5 | 0.5 |
| Iq(Typ), мА | 1 | 1 | 1 |
| Рабочий диапазон температур, C | от -40 до 125 | от -40 до 125 | от -40 до 125 |
| Package Group | TSSOP | TSSOP | TSSOP |
| Rating | Catalog | Catalog | Catalog |
| Regulated Outputs | 1 | 1 | 1 |
| Special Features | Enable,Tracking | Enable,Tracking | Enable,Tracking |
| Switching Frequency(Max), kHz | 500 | 500 | 500 |
| Switching Frequency(Min), kHz | 50 | 50 | 50 |
| Тип | Converter | Converter | Converter |
| Vin(Max), В | 75 | 75 | 75 |
| Vin(Min), В | 6 | 6 | 6 |
| Vout(Max), В | 70 | 70 | 70 |
| Vout(Min), В | 1.23 | 1.23 | 1.23 |
Экологический статус
| LM5574MT | LM5574MT/NOPB | LM5574MTX/NOPB | |
|---|---|---|---|
| RoHS | See ti.com | Совместим | Совместим |
Application Notes
- Understanding and Applying Current-Mode Control TheoryPDF, 409 Кб, Файл опубликован: 19 авг 2007
- AN-643 EMI/RFI Board Design (Rev. B)PDF, 742 Кб, Версия: B, Файл опубликован: 3 май 2004
Application Note 643 EMI/RFI Board Design - Cost-Effective Transformerless Offline Supply for Light Load Applications (Rev. A)PDF, 295 Кб, Версия: A, Файл опубликован: 16 июн 2015
This design idea provides a simple non-isolated AC/DC power supply for low power applications. Thedesign uses a "capacitive-dropper" front-end combined with a LM46000 SIMPLE SWITCHERВ® buckregulator from Texas Instruments. The circuit provides 3.3 V at a minimum of 100 mA from a line supply of90 VAC to 265 VAC. Theory of operation as well as design equations and performance results are given. - Input and Output Capacitor SelectionPDF, 219 Кб, Файл опубликован: 19 сен 2005
- AN-1197 Selecting Inductors for Buck Converters (Rev. B)PDF, 558 Кб, Версия: B, Файл опубликован: 23 апр 2013
This application report provides design information to help select an off-the-shelf inductor for anycontinuous-mode buck converter application. - AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A)PDF, 3.6 Мб, Версия: A, Файл опубликован: 23 апр 2013
This application note will explore how the layout of your DC/DC power supply can significantly affect theamount of EMI that it produces. It will discuss several variations of a layout analyze the results andprovide answers to some common EMI questions such whether or not to use a shielded inductor. - AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A)PDF, 1.4 Мб, Версия: A, Файл опубликован: 23 апр 2013
This application note provides thermal power analysis techniques for analyzing the power IC. - AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)PDF, 2.7 Мб, Версия: A, Файл опубликован: 23 апр 2013
This application report shows how to measure the critical points of a bode plot with only an audiogenerator (or simple signal generator) and an oscilloscope. The method is explained in an easy to followstep-by-step manner so that a power supply designer can start performing these measurements in a shortamount of time. - Semiconductor and IC Package Thermal Metrics (Rev. C)PDF, 201 Кб, Версия: C, Файл опубликован: 19 апр 2016
- Cap Drop Offline Supply for E-MetersPDF, 291 Кб, Файл опубликован: 16 июн 2015
This design idea provides a simple non-isolated AC/DC power supply for low power applications such assmart grid E-meter applications. The design uses a "capacitive-dropper" front-end combined with aLM46000 SIMPLE SWITCHERВ® buck regulator from Texas Instruments. The circuit provides 3.3 V at aminimum of 50 mA from a line supply of 90 VAC to 265 VAC. Theory of operation as well as designequa - AN-1997 Error Amplifier Limitations in High-Performance Regulator Applications (Rev. A)PDF, 153 Кб, Версия: A, Файл опубликован: 6 май 2013
The development of realistic predictions to assist the power supply engineer during the control loop design process is facilitated in this application report by appropriate small-signal and bode plot analysis, the validity of which is verified through simulation results. - Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A)PDF, 512 Кб, Версия: A, Файл опубликован: 12 сен 2014
Printed Circuit Board (PCB) layout for Switched Mode Power Supplies (SMPS) is critical to achieve proper converter operation good thermal performance and excellent radiated EMI performance. Optimized board layout for low radiated EMI is made very simple by the package and pin arrangement of the SIMPLE SWITCHER Synchronous Buck Converter family LM4360x and LM4600x - AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)PDF, 82 Кб, Версия: C, Файл опубликован: 23 апр 2013
When designing a high frequency switching regulated power supply layout is very important. Using agood layout can solve many problems associated with these types of supplies. The problems due to a badlayout are often seen at high current levels and are usually more obvious at large input to output voltagedifferentials. Some of the main problems are loss of regulation at high output current - Quick Start Guide for a 0.5 Amp Buck Regulator Using The LM5574 and LM25574 (Rev. B)PDF, 61 Кб, Версия: B, Файл опубликован: 23 апр 2013
The LM5574 and LM25574 switching regulators feature all of the functions necessary to implement anefficient high voltage buck regulator using a minimum of external components. These easy to useregulators include either a 42V (LM25574) or a 75V (LM5574) N-Channel buck switch with an outputcurrent capability of 0.5 Amps. The operating frequency is programmable from 50kHz up to 1MHz.Protectio - AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C)PDF, 374 Кб, Версия: C, Файл опубликован: 23 апр 2013
This application report provides SIMPLE SWITCHER™ PCB layout guidelines. - AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)PDF, 2.5 Мб, Версия: C, Файл опубликован: 24 апр 2013
Electromagnetic Interference (EMI) is an unwanted effect between two electrical systems as a result ofeither electromagnetic radiation or electromagnetic conduction. EMI is the major adverse effect caused bythe application of switch-mode power supplies (SMPS). In switching power supplies EMI noise isunavoidable due to the switching actions of the semiconductor devices and resulting disconti - AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C)PDF, 427 Кб, Версия: C, Файл опубликован: 23 апр 2013
This application note discusses stresses in wide input DC-DC converters. - AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)PDF, 9.2 Мб, Версия: B, Файл опубликован: 23 апр 2013
This thermal application report provides guidelines for the optimal board layout to achieve the best thermalresistance for exposed packages. The thermal resistance between junction-to-ambient (ОёJA) is highlydependent on the PCB (Printed Circuit Board) design factors. This becomes more critical for packageshaving very low thermal resistance between junction-to-case such as exposed pad TSSOP
Модельный ряд
Серия: LM5574 (3)
Классификация производителя
- Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Step-Down (Buck)> Buck Converter (Integrated Switch)
