LMR34215-Q1

Name: LMR34215-Q1
Brand: TI
SKU: LMR34215-Q1
Price: 1.11 USD

활성

4.2V~42V, 1.5A 초소형 동기 강압 컨버터

지금 주문하기

데이터 시트

document-pdfAcrobat LMR34215-Q1 4.2-V to 42-V, 1.5-A Ultra-Small Synchronous Step-Down Converter datasheet (Rev. B) (영어) PDF | HTML

이 제품의 최신 버전이 있습니다

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대안 비교

다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능

LMR43620-Q1

활성

오토모티브 3V-36V, 2A 저 EMI, 저 IQ를 지원하는 동기식 벅 레귤레이터 Smaller footprint, higher efficiency, lower EMI, lower IQ and spread-spectrum.

LMR34215-Q1

활성

데이터 시트

지금 주문하기

제품 상세 정보

Rating

Automotive

Topology

Buck

Iout (max) (A)

1.5

Vin (max) (V)

42

Vin (min) (V)

3.6

Vout (max) (V)

40

Vout (min) (V)

3.3

Features

Enable, Forced PWM, Light-load efficiency, Overcurrent protection, Power good, Synchronous rectification

EMI features

Low parasitic Hotrod packaging, Spread Spectrum

Control mode

current mode

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.000025

Duty cycle (max) (%)

99

TI functional safety category

Functional Safety-Capable

Rating

Automotive

Topology

Buck

Iout (max) (A)

1.5

Vin (max) (V)

42

Vin (min) (V)

3.6

Vout (max) (V)

40

Vout (min) (V)

3.3

Features

Enable, Forced PWM, Light-load efficiency, Overcurrent protection, Power good, Synchronous rectification

EMI features

Low parasitic Hotrod packaging, Spread Spectrum

Control mode

current mode

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.000025

Duty cycle (max) (%)

99

TI functional safety category

Functional Safety-Capable

VQFN-HR (RNX)

12

6 mm² 3 x 2

AEC-Q100-qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, T_A
Functional Safety-Capable
- Documentation available to aid functional safety system design
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
- Pin compatible with:
  - LMR36015-Q1, LMR36006-Q1 (60 V, 0.6 A, or 1.5 A)
  - LMR33630-Q1, LMR33620-Q1 (36 V, 2 A, or 3 A)
- 400-kHz, 2.1-MHz frequency options
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 V_IN, 5 V_OUT, 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, T_A
Functional Safety-Capable
- Documentation available to aid functional safety system design
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
- Pin compatible with:
  - LMR36015-Q1, LMR36006-Q1 (60 V, 0.6 A, or 1.5 A)
  - LMR33630-Q1, LMR33620-Q1 (36 V, 2 A, or 3 A)
- 400-kHz, 2.1-MHz frequency options
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 V_IN, 5 V_OUT, 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.

filter

기타 DC/DC 컨버터 찾기

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기술 자료

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=TI에서 선정한 이 제품의 인기 문서

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6개 모두 보기

상위 문서	유형	직함	형식 옵션	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
	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

LMR34215FSC5EVM 평가 모듈(EVM)은 설계자들이 LMR34215-Q1 광범위 벅 레귤레이터의 작동과 성능을 평가하도록 지원합니다. LMR34215-Q1은 최대 42V의 입력 전압에서 최대 1.5A의 부하 전류를 구동할 수 있는 사용이 편리한 동기식 스텝다운 DC/DC 컨버터입니다. LMR34215-Q1은 매우 적은 솔루션 크기로 탁월한 효율과 정확도를 제공합니다. LMR34215FSC5EVM에는 5V의 LMR34215-Q1 고정 출력 전압과 2.1MHz의 스위칭 주파수가 사용됩니다.

사용 설명서: PDF