전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

LM22674

활성

4.5V~42V, 500mA SIMPLE SWITCHER ® 벅 컨버터(정밀 활성화 지원)

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
LMR54406 활성 4V~36V 입력, 0.6A, 동기 벅 및 80µA IQ를 지원하는 SIMPLE SWITCHER® 전원 컨버터 Smaller footprint, lower quiescent current, FPWM and PFM options.
TLVM13620 활성 4mm x 6mm x 1.8mm 패키지에 들어 있는 3.6V~36V 입력, 1V~6V 출력, 2A 스텝다운 모듈 Save board space, simplify design and speed time to market with an integrated-inductor power module.
TPSM560R6H 활성 5mm x 5.5mm x 4mm QFN의 4.2V~60V 입력, 1V~16V 출력, 0.6A 스텝다운 모듈 Smaller design with an integrated-inductor power module.

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 0.5 Vin (min) (V) 4.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Features Enable, Over Current Protection Control mode Voltage mode Vout (min) (V) 1.285 Vout (max) (V) 37 Iq (typ) (µA) 3400 Duty cycle (max) (%) 90
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 0.5 Vin (min) (V) 4.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Features Enable, Over Current Protection Control mode Voltage mode Vout (min) (V) 1.285 Vout (max) (V) 37 Iq (typ) (µA) 3400 Duty cycle (max) (%) 90
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • Wide Input Voltage Range: 4.5 V to 42 V
  • Internally Compensated Voltage Mode Control
  • Stable with Low ESR Ceramic Capacitors
  • 200 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
  • Precision Enable Pin
  • Integrated Boot-Strap Diode
  • Integrated Soft-Start
  • Fully WEBENCH® Enabled
  • LM22674-Q1 is an Automotive Grade Product
    that is AEC-Q100 Grade 1 Qualified
    (–40°C to +125°C Operating Junction
    Temperature)
  • SO PowerPAD (Exposed Pad)
  • Wide Input Voltage Range: 4.5 V to 42 V
  • Internally Compensated Voltage Mode Control
  • Stable with Low ESR Ceramic Capacitors
  • 200 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
  • Precision Enable Pin
  • Integrated Boot-Strap Diode
  • Integrated Soft-Start
  • Fully WEBENCH® Enabled
  • LM22674-Q1 is an Automotive Grade Product
    that is AEC-Q100 Grade 1 Qualified
    (–40°C to +125°C Operating Junction
    Temperature)
  • SO PowerPAD (Exposed Pad)

The LM22674 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 capable of providing up to 500 mA 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. A precision enable input allows simplification of regulator control and system power sequencing. In shutdown mode the regulator draws only 25 µA (typ). Built in soft-start (500 µs, typ) saves external components. The LM22674 also has built in thermal shutdown, and current limiting to protect against accidental overloads.

The LM22674 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 LM22674 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 capable of providing up to 500 mA 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. A precision enable input allows simplification of regulator control and system power sequencing. In shutdown mode the regulator draws only 25 µA (typ). Built in soft-start (500 µs, typ) saves external components. The LM22674 also has built in thermal shutdown, and current limiting to protect against accidental overloads.

The LM22674 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

관심 가지실만한 유사 제품

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
TPS560430 활성 고효율 절전 모드를 갖춘 SIMPLE SWITCHER® 36V, 600mA 벅 레귤레이터 Next-generation 36-V, 600-mA buck regulator with high-efficiency sleep mode.

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
25개 모두 보기
유형 직함 날짜
* Data sheet LM22674/-Q1 42 V, 500 mA SIMPLE SWITCHER® Step-Down Voltage Regulator with Features datasheet (Rev. M) PDF | HTML 2014/11/04
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 2024/04/30
Application note Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 2024/03/25
Selection guide Power Management Guide 2018 (Rev. R) 2018/06/25
Technical article Quantifying the value of wide VIN PDF | HTML 2016/06/15
Technical article DC/DC converter datasheets – System losses demystified PDF | HTML 2016/04/25
Technical article DC/DC converter datasheets – System efficiency demystified PDF | HTML 2016/04/18
Application note Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A) 2014/09/12
Application note AN-1533 Overvoltage Protection Circuit for Automotive Load Dump (Rev. B) 2013/05/06
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-2020 Thermal Design By Insight, Not Hindsight (Rev. C) 2013/04/23
Application note AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 2013/04/23
Application note SIMPLE SWITCHER Regulators Take Over Automotive Applications (Rev. A) 2013/04/23
Design guide SIMPLE SWITCHER® Design Guide 2011/04/11
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.

평가 보드

LM22671EVAL — LM22671 주파수 조정 또는 동기화 및 정밀 활성화 EVM을 지원하는 0.5A SIMPLE SWITCHER 레귤레이터

The LM22671 evaluation board is designed to demonstrate the capabilities of the LM22671switching regulator. The LM22671 evaluation board is configured to provide an output voltage of 3.3V up to 500 mA load current with an input voltage range of 4.5V to 42V. The typical operating frequency is 500 (...)

사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

LM22674-5.0 PSpice Average Model

SNVM178.ZIP (52 KB) - PSpice Model
시뮬레이션 모델

LM22674-5.0 PSpice Transient Model (Rev. A)

SNVM177A.ZIP (209 KB) - PSpice Model
시뮬레이션 모델

LM22674-5.0 TINA-TI Average Reference Design

SNVM180.TSC (142 KB) - TINA-TI Reference Design
시뮬레이션 모델

LM22674-5.0 TINA-TI Average Spice Model

SNVM179.ZIP (8 KB) - TINA-TI Spice Model
시뮬레이션 모델

LM22674-5.0 TINA-TI Transient Line Reference Design

SNVM173.TSC (186 KB) - TINA-TI Reference Design
시뮬레이션 모델

LM22674-5.0 TINA-TI Transient Load Reference Design

SNVM172.TSC (184 KB) - TINA-TI Reference Design
시뮬레이션 모델

LM22674-5.0 TINA-TI Transient Spice Model

SNVM175.ZIP (20 KB) - TINA-TI Spice Model
시뮬레이션 모델

LM22674-5.0 TINA-TI Transient Startup Reference Design

SNVM176.TSC (219 KB) - TINA-TI Reference Design
시뮬레이션 모델

LM22674-5.0 TINA-TI Transient Steady State Reference Design

SNVM174.TSC (226 KB) - TINA-TI Reference Design
시뮬레이션 모델

LM22674-5.0 Unencrypted PSpice Average Model

SNVM925.ZIP (1 KB) - PSpice Model
시뮬레이션 모델

LM22674-5.0 Unencrypted PSpice Transient Model

SNVM926.ZIP (4 KB) - PSpice Model
시뮬레이션 모델

LM22674-ADJ PSpice Average Model

SNVM312.ZIP (53 KB) - PSpice Model
시뮬레이션 모델

LM22674-ADJ PSpice Transient Model

SNVM313.ZIP (208 KB) - PSpice Model
시뮬레이션 모델

LM22674-ADJ Unencrypted PSpice Average Model

SNVM900.ZIP (1 KB) - PSpice Model
시뮬레이션 모델

LM22674-ADJ Unencrypted PSpice Transient Model

SNVM899.ZIP (4 KB) - PSpice Model
계산 툴

LM2267X-22680DESIGN-CALC — LM2267x, LM22680 빠른 시작 Simple Switcher 구성 요소 계산기

패키지 CAD 기호, 풋프린트 및 3D 모델
HSOIC (DDA) 8 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

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