전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

LM22670

활성

4.5V~42V, 3A SIMPLE SWITCHER® 벅 컨버터(주파수 동기화 지원)

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
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.
TLVM13630 활성 고밀도, 3V~36V 입력, 1V~16V 출력, 3A 스텝다운 전원 모듈 Save board space, simplify design and speed time to market 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) 3 Vin (min) (V) 4.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1000 Features Enable, Frequency synchronization, 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) 3 Vin (min) (V) 4.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1000 Features Enable, Frequency synchronization, 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 TO-263 (NDR) 7 142.3416 mm² 10.16 x 14.01
  • Wide Input Voltage Range: 4.5 V to 42 V
  • Internally Compensated Voltage Mode Control
  • Stable with Low ESR Ceramic Capacitors
  • 120 mΩ N-channel MOSFET PFM Package
  • 100 mΩ N-channel MOSFET SO PowerPAD-8 Package
  • Output Voltage Options:
    -ADJ (Outputs as Low as 1.285 V)
    -5.0 (Output Fixed to 5 V)
  • ±1.5% Feedback Reference Accuracy
  • 500 kHz Default Switching Frequency
  • Adjustable Switching Frequency and Synchronization
  • –40°C to 125°C Operating Junction
    Temperature Range
  • Precision Enable Pin
  • Integrated Boot-Strap Diode
  • Integrated Soft-Start
  • Fully WEBENCH® enabled
  • LM22670-Q1 is an Automotive Grade Product
    that is AEC-Q100 Grade 1 Qualified (–40°C to +125°C
    Operating Junction Temperature)
  • Wide Input Voltage Range: 4.5 V to 42 V
  • Internally Compensated Voltage Mode Control
  • Stable with Low ESR Ceramic Capacitors
  • 120 mΩ N-channel MOSFET PFM Package
  • 100 mΩ N-channel MOSFET SO PowerPAD-8 Package
  • Output Voltage Options:
    -ADJ (Outputs as Low as 1.285 V)
    -5.0 (Output Fixed to 5 V)
  • ±1.5% Feedback Reference Accuracy
  • 500 kHz Default Switching Frequency
  • Adjustable Switching Frequency and Synchronization
  • –40°C to 125°C Operating Junction
    Temperature Range
  • Precision Enable Pin
  • Integrated Boot-Strap Diode
  • Integrated Soft-Start
  • Fully WEBENCH® enabled
  • LM22670-Q1 is an Automotive Grade Product
    that is AEC-Q100 Grade 1 Qualified (–40°C to +125°C
    Operating Junction Temperature)

The LM22670 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 3 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. The default switching frequency is set at 500 kHz allowing for small external components and good transient response. In addition, the frequency can be adjusted over a range of 200 kHz to 1 MHz with a single external resistor. The internal oscillator can be synchronized to a system clock or to the oscillator of another regulator. 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 LM22670 device also has built-in thermal shutdown, and current limiting to protect against accidental overloads.

The LM22670 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 LM22670 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 3 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. The default switching frequency is set at 500 kHz allowing for small external components and good transient response. In addition, the frequency can be adjusted over a range of 200 kHz to 1 MHz with a single external resistor. The internal oscillator can be synchronized to a system clock or to the oscillator of another regulator. 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 LM22670 device also has built-in thermal shutdown, and current limiting to protect against accidental overloads.

The LM22670 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.
30개 모두 보기
유형 직함 날짜
* Data sheet LM22670/-Q1 42-V, 3-A SIMPLE SWITCHER®, Step-Down Voltage Regulator With Features datasheet (Rev. P) PDF | HTML 2014/10/28
Application note SIMPLE SWITCHER Regulators Take Over Automotive Applications (Rev. B) PDF | HTML 2024/10/09
Application note Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 2024/03/25
Analog Design Journal Control-Mode Quick Reference Guide (Rev. B) PDF | HTML 2023/08/29
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
Technical article DC/DC converter datasheets - Quiescent current demystified: Part two PDF | HTML 2016/04/11
Application note Know Your Limits 2015/06/02
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-1797 TO-263 THIN Package (Rev. A) 2013/04/24
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
EVM User's guide AN-1885 LM22670 Evaluation Board (Rev. D) 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
EVM User's guide LM22670 Evaluation Board Inverting Topology and Application Notes (Rev. E) 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

LM22670EVAL — LM22670 주파수 조정 또는 동기화 및 정밀 활성화 EVM을 지원하는 3A SIMPLE SWITCHER 레귤레이터

The LM22670 evaluation board is designed to demonstrate the capabilities of the LM22670 switching regulator. The LM22670 evaluation board is configured to provide an output voltage of 3.3V up to 3A load current with an input voltage range of 4.5V to 42V. Due to the low RDS(ON) of the integrated (...)

사용 설명서: PDF
TI.com에서 구매 불가
평가 보드

LM22670INVEVAL — LM22670 인버팅 출력 레귤레이터와 주파수 조정 또는 동기화 가능, 최대 1MHz까지, 정밀 조정 가능 EVM

The LM22670 inverting evaluation board is designed to demonstrate the capabilities of the LM22670 switching regulator in a polarity inverting topology. The LM22670 inverting evaluation board is configured to provide an output of minus 5V (-5V) up to 1.5A load current with an input voltage range of (...)

사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

LM22670-5.0 PSpice Average Model

SNVM150.ZIP (53 KB) - PSpice Model
시뮬레이션 모델

LM22670-5.0 PSpice Transient Model

SNVM151.ZIP (216 KB) - PSpice Model
시뮬레이션 모델

LM22670-5.0 TINA-TI Average Reference Design

SNVM117.TSC (145 KB) - TINA-TI Reference Design
시뮬레이션 모델

LM22670-5.0 TINA-TI Average Spice Model

SNVM116.ZIP (8 KB) - TINA-TI Spice Model
시뮬레이션 모델

LM22670-5.0 TINA-TI Line Transient Reference Design

SNVM121.TSC (186 KB) - TINA-TI Reference Design
시뮬레이션 모델

LM22670-5.0 TINA-TI Load Transient Reference Design

SNVM120.TSC (191 KB) - TINA-TI Reference Design
시뮬레이션 모델

LM22670-5.0 TINA-TI Startup Transient Reference Design

SNVM118.TSC (214 KB) - TINA-TI Reference Design
시뮬레이션 모델

LM22670-5.0 TINA-TI Steady StateTransient Reference Design

SNVM119.TSC (208 KB) - TINA-TI Reference Design
시뮬레이션 모델

LM22670-5.0 TINA-TI Transient Spice Model

SNVM122.ZIP (22 KB) - TINA-TI Spice Model
시뮬레이션 모델

LM22670-5.0 Unencrypted PSpice Average Model

SNVM808.ZIP (1 KB) - PSpice Model
시뮬레이션 모델

LM22670-5.0 Unencrypted PSpice Transient Model

SNVM810.ZIP (4 KB) - PSpice Model
시뮬레이션 모델

LM22670-ADJ PSpice Average Model

SNVM232.ZIP (51 KB) - PSpice Model
시뮬레이션 모델

LM22670-ADJ PSpice Transient Model

SNVM231.ZIP (214 KB) - PSpice Model
시뮬레이션 모델

LM22670-ADJ Unencrypted PSpice Average Model

SNVM811.ZIP (1 KB) - PSpice Model
시뮬레이션 모델

LM22670-ADJ Unencrypted PSpice Transient Model

SNVM809.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
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