전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

LMR34215-Q1

활성

4.2V~42V, 1.5A 초소형 동기 강압 컨버터

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
LMR43620-Q1 활성 저 IQ를 지원하는 오토모티브 3V~36V, 2A 저 EMI 동기 벅 레귤레이터 Smaller footprint, higher efficiency, lower EMI, lower IQ and spread-spectrum.

제품 상세 정보

Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 1.5 Vin (min) (V) 3.6 Vin (max) (V) 42 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 2100 Features Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Power good, Synchronous Rectification EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Vout (min) (V) 3.3 Vout (max) (V) 40 Iq (typ) (µA) 25 Duty cycle (max) (%) 99
Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 1.5 Vin (min) (V) 3.6 Vin (max) (V) 42 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 2100 Features Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Power good, Synchronous Rectification EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Vout (min) (V) 3.3 Vout (max) (V) 40 Iq (typ) (µA) 25 Duty cycle (max) (%) 99
VQFN-HR (RNX) 12 6 mm² 3 x 2
  • AEC-Q100-qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Designed for automotive applications
    • Junction temperature range –40°C to +150°C
    • 0.4-V dropout with 1.5-A load (typical)
    • ±1.5% reference voltage tolerance
    • 5-V fixed-output, adjustable output voltage options
  • Suited for scalable power supplies
  • Integration reduces solution size and cost
    • Small, 2-mm × 3-mm VQFN package with wettable flanks
    • Few external components
  • Low power dissipation across load spectrum
    • 93% efficiency at 400 kHz (12 VIN, 5 VOUT, 1 A)
    • Increased light load efficiency in PFM
    • Low operating quiescent current of 24 µA
  • Optmized for ultra low EMI requirements
    • Meets CISPR25 class 5 standard
    • Hotrod™ package minimizes switch node ringing
    • Parallel input path minimizes parasitic inductance
    • Spread spectrum reduces peak emissions
  • AEC-Q100-qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Designed for automotive applications
    • Junction temperature range –40°C to +150°C
    • 0.4-V dropout with 1.5-A load (typical)
    • ±1.5% reference voltage tolerance
    • 5-V fixed-output, adjustable output voltage options
  • Suited for scalable power supplies
  • Integration reduces solution size and cost
    • Small, 2-mm × 3-mm VQFN package with wettable flanks
    • Few external components
  • Low power dissipation across load spectrum
    • 93% efficiency at 400 kHz (12 VIN, 5 VOUT, 1 A)
    • Increased light load efficiency in PFM
    • Low operating quiescent current of 24 µA
  • Optmized for ultra low EMI requirements
    • Meets CISPR25 class 5 standard
    • Hotrod™ package minimizes switch node ringing
    • Parallel input path minimizes parasitic inductance
    • Spread spectrum reduces peak emissions

The LMR34215-Q1 regulator is an easy-to-use, synchronous, step-down DC/DC converter. With integrated high-side and low-side power MOSFETs, output current is delivered over a wide input voltage range of 4.2 V to 42 V.

The LMR34215-Q1 uses peak-current-mode control to provide optimal efficiency and output voltage accuracy. Precision enable gives flexibility by enabling a direct connection to the wide input voltage or precise control over device start-up and shutdown. The power-good flag, with built-in filtering and delay, offers a true indication of system status eliminating the requirement for an external supervisor.

The LMR34215-Q1 regulator is an easy-to-use, synchronous, step-down DC/DC converter. With integrated high-side and low-side power MOSFETs, output current is delivered over a wide input voltage range of 4.2 V to 42 V.

The LMR34215-Q1 uses peak-current-mode control to provide optimal efficiency and output voltage accuracy. Precision enable gives flexibility by enabling a direct connection to the wide input voltage or precise control over device start-up and shutdown. The power-good flag, with built-in filtering and delay, offers a true indication of system status eliminating the requirement for an external supervisor.

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기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
7개 모두 보기
유형 직함 날짜
* Data sheet LMR34215-Q1 4.2-V to 42-V, 1.5-A Ultra-Small Synchronous Step-Down Converter datasheet (Rev. B) PDF | HTML 2020/11/19
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021/04/08
Functional safety information LMR34215-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2021/01/06
Technical article Powering levels of autonomy: a quick guide to DC/DC solutions for SAE autonomy lev 2020/11/18
Technical article Optimizing flip-chip IC thermal performance in automotive designs PDF | HTML 2019/12/11
EVM User's guide LMR34206 and LMR34215 EVM User's Guide 2019/09/26
Design guide Automotive ADAS camera power supply reference design (Rev. A) 2019/08/22

설계 및 개발

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

평가 보드

LMR34215FSC5EVM — 42V, 1.5A 동기 스텝다운 컨버터 평가 모듈

The LMR34215FSC5EVM evaluation module (EVM) helps designers evaluate the operation and performance of the LMR34215-Q1 wide-input buck regulator. The LMR34215-Q1 is an easy-to-use synchronous step-down DC/DC converter capable of driving up to 1.5 A of load current from an input voltage of up to 42 (...)
사용 설명서: PDF
TI.com에서 구매 불가
평가 보드

LMR36015AEVM — 동기 스텝다운 컨버터 평가 모듈

The LMR36015 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LMR36015 synchronous step-down converter.  The LMR36015 provides exceptional efficiency and accuracy in a very small solution size.
사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

LMR34215FA-Q1 Unencrypted PSPICE TRANSIENT MODEL

SNVMBT7.ZIP (160 KB) - PSpice Model
시뮬레이션 모델

LMR34215FSC5-Q1 Unencrypted PSPICE TRANSIENT MODEL

SNVMBT2.ZIP (161 KB) - PSpice Model
시뮬레이션 모델

LMR34215SC5-Q1 Unencrypted PSPICE TRANSIENT MODEL

SNVMBT1.ZIP (155 KB) - PSpice Model
패키지 CAD 기호, 풋프린트 및 3D 모델
VQFN-HR (RNX) 12 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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