전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

LM22679-Q1

활성

조정 가능한 소프트 시작 및 전류 제한을 지원하는 5A SIMPLE SWITCHER 스텝다운 전압 레귤레이터

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
신규 LM63460-Q1 활성 향상된 QFN 패키지의 차량용 3V~36V, 6A 저 EMI 동기 스텝다운 컨버터 Smaller device footprint, enhanced HotRod™ QFN package, spread spectrum and selectable FPWM or PFM modes.

제품 상세 정보

Rating Automotive Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 5 Vin (min) (V) 4.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Features Adjustable current limit, Fixed Output, Over Current Protection, Soft Start Adjustable Control mode Voltage mode Vout (min) (V) 1.285 Vout (max) (V) 37 Iq (typ) (µA) 3400 Duty cycle (max) (%) 90
Rating Automotive Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 5 Vin (min) (V) 4.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Features Adjustable current limit, Fixed Output, Over Current Protection, Soft Start Adjustable Control mode Voltage mode Vout (min) (V) 1.285 Vout (max) (V) 37 Iq (typ) (µA) 3400 Duty cycle (max) (%) 90
TO-263 (NDR) 7 142.3416 mm² 10.16 x 14.01
  • New product available: LM61460 3-V to 36-V, 6-A low EMI synchronous converter
  • Wide input voltage range: 4.5 V to 42 V
  • Internally compensated voltage mode control
  • Stable with low-ESR ceramic capacitors
  • 100-mΩ N-channel MOSFET
  • Output voltage options: -ADJ (outputs as low as 1.285 V) -5.0 (output fixed to 5 V)
  • ±1.5% feedback reference accuracy
  • Switching frequency of 500 kHz
  • –40°C to 125°C operating junction temperature range
  • Adjustable soft start
  • Adjustable current limit
  • Integrated bootstrap diode
  • Fully WEBENCH enabled
  • LM22679-Q1 is AEC-Q100 qualified and manufactured on an automotive-grade flow
  • PFM (exposed pad) package
  • New product available: LM61460 3-V to 36-V, 6-A low EMI synchronous converter
  • Wide input voltage range: 4.5 V to 42 V
  • Internally compensated voltage mode control
  • Stable with low-ESR ceramic capacitors
  • 100-mΩ N-channel MOSFET
  • Output voltage options: -ADJ (outputs as low as 1.285 V) -5.0 (output fixed to 5 V)
  • ±1.5% feedback reference accuracy
  • Switching frequency of 500 kHz
  • –40°C to 125°C operating junction temperature range
  • Adjustable soft start
  • Adjustable current limit
  • Integrated bootstrap diode
  • Fully WEBENCH enabled
  • LM22679-Q1 is AEC-Q100 qualified and manufactured on an automotive-grade flow
  • PFM (exposed pad) package

The LM22679 switching regulator provides all of the functions necessary to implement an efficient high-voltage step-down (buck) regulator using a minimum of external components. This easy-to-use regulator incorporates a 42-V N-channel MOSFET switch that can provide up to 5 A of load current. Excellent line and load regulation along with high efficiency (> 90%) are featured. Voltage mode control offers short minimum on-time, allowing the widest ratio between input and output voltages. Internal loop compensation means that the user is free from the tedious task of calculating the loop compensation components. Fixed 5-V output and adjustable output voltage options are available. A switching frequency of 500 kHz allows for small external components and good transient response. An adjustable soft-start feature is provided through the selection of a single external capacitor. In addition, the switch-current limit can be programmed with a single external resistor, allowing solution optimization. The LM22679 device also has built-in thermal shutdown and current limiting to protect against accidental overloads.

The new product, LM61460, offers higher efficiency, lower stand-by quiescent current, and improved EMI performance. See the device comparison table to compare. Start WEBENCH design with LM61460

The LM22679 device is a member of Texas Instruments’ SIMPLE SWITCHER family. The SIMPLE SWITCHER concept provides for an easy to use complete design using a minimum number of external components and the TI WEBENCH design tool. TI’s WEBENCH tool includes features such as external component calculation, electrical simulation, thermal simulation, and Build-It boards for easy design-in.

The LM22679 switching regulator provides all of the functions necessary to implement an efficient high-voltage step-down (buck) regulator using a minimum of external components. This easy-to-use regulator incorporates a 42-V N-channel MOSFET switch that can provide up to 5 A of load current. Excellent line and load regulation along with high efficiency (> 90%) are featured. Voltage mode control offers short minimum on-time, allowing the widest ratio between input and output voltages. Internal loop compensation means that the user is free from the tedious task of calculating the loop compensation components. Fixed 5-V output and adjustable output voltage options are available. A switching frequency of 500 kHz allows for small external components and good transient response. An adjustable soft-start feature is provided through the selection of a single external capacitor. In addition, the switch-current limit can be programmed with a single external resistor, allowing solution optimization. The LM22679 device also has built-in thermal shutdown and current limiting to protect against accidental overloads.

The new product, LM61460, offers higher efficiency, lower stand-by quiescent current, and improved EMI performance. See the device comparison table to compare. Start WEBENCH design with LM61460

The LM22679 device is a member of Texas Instruments’ SIMPLE SWITCHER family. The SIMPLE SWITCHER concept provides for an easy to use complete design using a minimum number of external components and the TI WEBENCH design tool. TI’s WEBENCH tool includes features such as external component calculation, electrical simulation, thermal simulation, and Build-It boards for easy design-in.

다운로드 스크립트와 함께 비디오 보기 동영상

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
16개 모두 보기
유형 직함 날짜
* Data sheet LM22679/-Q1 42-V, 5-A SIMPLE SWITCHER® Step-Down Voltage Regulator With Easy-to-Use Package datasheet (Rev. M) PDF | HTML 2020/10/23
Application note Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 2024/03/25
Application note Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A) 2014/09/12
Application note AN-1997 Error Amplifier Limitations in High-Performance Regulator Applications (Rev. A) 2013/05/06
Application note AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 2013/04/24
Application note AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C) 2013/04/23
Application note AN-1197 Selecting Inductors for Buck Converters (Rev. B) 2013/04/23
Application note AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C) 2013/04/23
Application note AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C) 2013/04/23
Application note AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B) 2013/04/23
Application note AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A) 2013/04/23
Application note AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 2013/04/23
Application note AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 2013/04/23
Application note Input and Output Capacitor Selection 2005/09/19
More literature SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 2005/07/12
Application note AN-643 EMI/RFI Board Design (Rev. B) 2004/05/03

설계 및 개발

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

시뮬레이션 모델

LM22679-5.0 PSpice Average Model

SNVM152.ZIP (49 KB) - PSpice Model
시뮬레이션 모델

LM22679-5.0 PSpice Transient Model

SNVM137.ZIP (191 KB) - PSpice Model
시뮬레이션 모델

LM22679-5.0 Unencrypted PSpice Average Model

SNVM890.ZIP (1 KB) - PSpice Model
시뮬레이션 모델

LM22679-ADJ PSpice Average Model

SNVM284.ZIP (53 KB) - PSpice Model
시뮬레이션 모델

LM22679-ADJ PSpice Transient Model

SNVM283.ZIP (234 KB) - PSpice Model
시뮬레이션 모델

LM22679-ADJ Unencrypted PSpice Average Model

SNVM829.ZIP (1 KB) - PSpice Model
시뮬레이션 모델

LM22679-ADJ Unencrypted PSpice Transient Model

SNVM828.ZIP (4 KB) - PSpice Model
패키지 CAD 기호, 풋프린트 및 3D 모델
TO-263 (NDR) 7 Ultra Librarian

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

지원 및 교육

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

콘텐츠는 TI 및 커뮤니티 기고자에 의해 "있는 그대로" 제공되며 TI의 사양으로 간주되지 않습니다. 사용 약관을 참조하십시오.

품질, 패키징, TI에서 주문하는 데 대한 질문이 있다면 TI 지원을 방문하세요. ​​​​​​​​​​​​​​

동영상