LM2576

활성

SIMPLE SWITCHER® 40V, 3A 적은 부품 수의 스텝다운 레귤레이터

지금 주문하기

데이터 시트

document-pdfAcrobat LM2576xx Series SIMPLE SWITCHER Power Converter 3-A Step-Down Voltage Regulator datasheet (Rev. G) (영어) PDF | HTML

이 제품의 최신 버전이 있습니다

open-in-new

대안 비교

다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능.

TLVM13630

활성

고밀도, 3V~36V 입력, 1V~6V 출력, 3A 스텝다운 전원 모듈 Save board space, simplify design and speed time to market with an integrated-inductor power module.

LMQ66430

활성

3.5µA IQ를 지원하는 36V, 1A 저 EMI 동기 스텝다운 컨버터 Integrated input bypass capacitor and boot cap for lower EMI and smaller footprint, dual-random spread spectrum and lower IQ.

LM2576

활성

데이터 시트

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제품 상세 정보

Rating

Catalog

Topology

Buck

Iout (max) (A)

Vin (max) (V)

Vin (min) (V)

Vout (max) (V)

Vout (min) (V)

3.3

Features

Enable, Over Current Protection

Control mode

Voltage mode

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.005

Duty cycle (max) (%)

Rating

Catalog

Topology

Buck

Iout (max) (A)

Vin (max) (V)

Vin (min) (V)

Vout (max) (V)

Vout (min) (V)

3.3

Features

Enable, Over Current Protection

Control mode

Voltage mode

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.005

Duty cycle (max) (%)

TO-263 (KTT)

154.8384 mm² (10.16 mm × 15.24 mm)

TO-220 (NDH)

86.0552 mm² (10.16 mm × 8.47 mm)

TO-220 (KC)

45.212 mm² (10.16 mm × 4.45 mm)

TO-220 (NEB)

86.0552 mm² (10.16 mm × 8.47 mm)

Newer products available:
- LMR51430 4.5 to 36-V, 3-A, 500-kHz and 1.1-MHz synchronous converter
- LM76003 3.5 to 60-V, 3.5-A, 300-kHz to 2.2-MHz synchronous converter
For faster time to market:
- TLVM13630 3 to 36-V, 3-A, 200-kHz to 2.2-MHz power module
3.3-V, 5-V, 12-V, 15-V, and adjustable output versions
Adjustable version output voltage range,1.23 V to 37 V (57 V for HV version) ±4% maximum over line and load conditions
Specified 3-A output current
Wide input voltage range: 40 V Up to 60 V for HV version
Requires only four external components
52-kHz fixed-frequency internal oscillator
TTL-shutdown capability, low-power standby mode
High efficiency
Uses readily available standard inductors
Create a custom design using the LMR33630 or LM76003 with the WEBENCH Power Designer

Newer products available:
- LMR51430 4.5 to 36-V, 3-A, 500-kHz and 1.1-MHz synchronous converter
- LM76003 3.5 to 60-V, 3.5-A, 300-kHz to 2.2-MHz synchronous converter
For faster time to market:
- TLVM13630 3 to 36-V, 3-A, 200-kHz to 2.2-MHz power module
3.3-V, 5-V, 12-V, 15-V, and adjustable output versions
Adjustable version output voltage range,1.23 V to 37 V (57 V for HV version) ±4% maximum over line and load conditions
Specified 3-A output current
Wide input voltage range: 40 V Up to 60 V for HV version
Requires only four external components
52-kHz fixed-frequency internal oscillator
TTL-shutdown capability, low-power standby mode
High efficiency
Uses readily available standard inductors
Create a custom design using the LMR33630 or LM76003 with the WEBENCH Power Designer

The LM2576 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving 3-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, 15 V, and an adjustable output version.

Requiring a minimum number of external components, these regulators are simple to use and include fault protection and a fixed-frequency oscillator.

The LM2576 series offers a high-efficiency replacement for popular three-terminal linear regulators. It substantially reduces the size of the heat sink, and in some cases no heat sink is required.

A standard series of inductors optimized for use with the LM2576 are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies.

Other features include a ±4% tolerance on output voltage within specified input voltages and output load conditions, and ±10% on the oscillator frequency. External shutdown is included, featuring 50-µA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.

The LM76003 requires very few external components and has a pinout designed for simple, optimum PCB layout for EMI and thermal performance. See the device comparison table to compare specs.

Requiring a minimum number of external components, these regulators are simple to use and include fault protection and a fixed-frequency oscillator.

The LM2576 series offers a high-efficiency replacement for popular three-terminal linear regulators. It substantially reduces the size of the heat sink, and in some cases no heat sink is required.

A standard series of inductors optimized for use with the LM2576 are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies.

The LM76003 requires very few external components and has a pinout designed for simple, optimum PCB layout for EMI and thermal performance. See the device comparison table to compare specs.

filter

기타 DC/DC 컨버터 찾기

다운로드 스크립트와 함께 비디오 보기 비디오

관심 가지실만한 유사 제품

open-in-new

대안 비교

다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능.

LMR33630

활성

SIMPLE SWITCHER® 3.8V~36V, 3A 동기 벅 컨버터, 초저 EMI Next-generation 3.8-V to 36-V, 3-A synchronous buck converter with ultra-low EMI.

기술 자료

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23개 모두 보기

상위 문서	유형	직함	형식 옵션	날짜
*	데이터 시트	LM2576xx Series SIMPLE SWITCHER Power Converter 3-A Step-Down Voltage Regulator datasheet (Rev. G)	PDF \| HTML	2023. 3. 22
	애플리케이션 노트	Semiconductor and IC Package Thermal Metrics (Rev. D)	PDF \| HTML	2024. 3. 25
	애플리케이션 노트	Switching regulator fundamentals (Rev. C)	PDF \| HTML	2019. 2. 5
	기술 문서	How to increase system reliability and simplify design using DC/DC converters	PDF \| HTML	2016. 6. 13
	기술 문서	The importance of accurate switching frequency and current limit when selecting bu	PDF \| HTML	2016. 4. 19
	기술 문서	Advantages of leaded packages in robust industrial designs	PDF \| HTML	2016. 3. 8
	애플리케이션 노트	Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A)		2014. 9. 12
	애플리케이션 노트	AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)		2013. 4. 24
	애플리케이션 노트	AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A)		2013. 4. 23
	애플리케이션 노트	AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A)		2013. 4. 23
	애플리케이션 노트	AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C)		2013. 4. 23
	애플리케이션 노트	AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)		2013. 4. 23
	애플리케이션 노트	AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)		2013. 4. 23
	애플리케이션 노트	AN-776 20-W SIMPLE SWITCHER Forward Converter (Rev. A)		2013. 4. 23
	애플리케이션 노트	AN-1197 Selecting Inductors for Buck Converters (Rev. B)		2013. 4. 23
	애플리케이션 노트	AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C)		2013. 4. 23
	애플리케이션 노트	High-Efficiency 3A Battery Chargers Use LM2576 Regulators (Rev. B)		2013. 4. 23
	애플리케이션 노트	AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)		2013. 4. 23
	애플리케이션 노트	Battery Charging		2007. 3. 21
	애플리케이션 노트	Buck Converters Provide a Battery Charger and System Power		2007. 3. 21
	애플리케이션 노트	Input and Output Capacitor Selection		2005. 9. 19
	추가 자료	SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations		2005. 7. 12
	애플리케이션 노트	AN-643 EMI/RFI Board Design (Rev. B)		2004. 5. 3

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 보드

LM2576S-ADJEVM — LM2576 스텝다운 컨버터 평가 모듈

LM2576S-ADJEVM EVM(평가 모듈)은 LM2576 스텝다운 컨버터를 평가할 수 있도록 완조립 및 테스트를 거친 회로입니다. EVM은 7V~40V 입력에서 작동하며 3A에서 5V 출력을 제공합니다.

사용 설명서: PDF

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이용할 수 없음

지원 소프트웨어

SWITCHERSMADESIMPLE-SW — Switchers Made Simple® Software

Note: The Switchers Made Simple design computations have been incorporated into Texas Instruments' award winning WEBENCH Power Designer Online Design Tool. Please use TI's WEBENCH Power Designer online tools for new designs. The WEBENCH Design Tool also includes: