홈 전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)
홈
전원 관리
AC/DC 및 DC/DC 컨버터(통합 FET)

LMR14030-Q1

활성

40uA IQ를 지원하는 SIMPLE SWITCHER® 오토모티브 40V, 3.5A, 2.2MHz 스텝다운 컨버터

지금 주문
데이터 시트

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
LM63635-Q1 활성 확산 스펙트럼을 지원하는 차량용 3.5V~36V, 3.25A 스텝다운 전압 컨버터 Smaller footprint and improved EMI performance in HotRod™ QFN package.

LMR14030-Q1

활성
데이터 시트 지금 주문

제품 상세 정보

Rating Automotive Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 3.5 Vin (min) (V) 4 Vin (max) (V) 40 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2500 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Spread Spectrum, Tracking, UVLO adjustable EMI features Spread Spectrum Control mode current mode Vout (min) (V) 1 Vout (max) (V) 30 Iq (typ) (µA) 40 Duty cycle (max) (%) 98
Rating Automotive Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 3.5 Vin (min) (V) 4 Vin (max) (V) 40 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2500 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Spread Spectrum, Tracking, UVLO adjustable EMI features Spread Spectrum Control mode current mode Vout (min) (V) 1 Vout (max) (V) 30 Iq (typ) (µA) 40 Duty cycle (max) (%) 98
HSOIC (DDA) 8 29.4 mm² 4.9 x 6 WSON (DPR) 10 16 mm² 4 x 4
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    - Device Temperature Grade 1: –40°C to 125°C
    Ambient Operating Temperature Range
    - Device HBM ESD Classification Level H1C
    - Device CDM ESD Classification Level C4A
  • 4 V to 40 V Input Range
  • 3.5 A Continuous Output Current
  • Ultra-low 40 µA Operating Quiescent Current
  • 90 mΩ High-Side MOSFET
  • Minimum Switch-On Time: 75 ns
  • Current Mode Control
  • Adjustable Switching Frequency from 200 kHz to
    2.5 MHz
  • Frequency Synchronization to External Clock
  • Spread Spectrum Option for Reduced EMI
  • Internal Compensation for Ease of Use
  • High Duty Cycle Operation Supported
  • Precision Enable Input
  • 1 µA Shutdown Current
  • External Soft-start
  • Thermal, Overvoltage and Short Protection
  • 8-Pin HSOIC with PowerPAD™ Package
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    - Device Temperature Grade 1: –40°C to 125°C
    Ambient Operating Temperature Range
    - Device HBM ESD Classification Level H1C
    - Device CDM ESD Classification Level C4A
  • 4 V to 40 V Input Range
  • 3.5 A Continuous Output Current
  • Ultra-low 40 µA Operating Quiescent Current
  • 90 mΩ High-Side MOSFET
  • Minimum Switch-On Time: 75 ns
  • Current Mode Control
  • Adjustable Switching Frequency from 200 kHz to
    2.5 MHz
  • Frequency Synchronization to External Clock
  • Spread Spectrum Option for Reduced EMI
  • Internal Compensation for Ease of Use
  • High Duty Cycle Operation Supported
  • Precision Enable Input
  • 1 µA Shutdown Current
  • External Soft-start
  • Thermal, Overvoltage and Short Protection
  • 8-Pin HSOIC with PowerPAD™ Package

The LMR14030-Q1 is a 40 V, 3.5 A step down regulator with an integrated high-side MOSFET. With a wide input range from 4 V to 40 V, it’s suitable for various applications from industrial to automotive for power conditioning from unregulated sources. An extended family is available in 2 A and 5 A options in pin-to-pin compatible packages, including LMR14020-Q1 and LMR14050-Q1. The regulator’s quiescent current is 40 µA in Sleep-mode, which is suitable for battery powered systems. An ultra-low 1 µA current in shutdown mode can further prolong battery life. A wide adjustable switching frequency range allows either efficiency or external component size to be optimized. Internal loop compensation means that the user is free from the tedious task of loop compensation design. This also minimizes the external components of the device. A precision enable input allows simplification of regulator control and system power sequencing. The device also has built-in protection features such as cycle-by-cycle current limit, thermal sensing and shutdown due to excessive power dissipation, and output overvoltage protection.

The LMR14030-Q1 is available in an 8-pin HSOIC or 10-pin WSON package with exposed pad for low thermal resistance.

The LMR14030-Q1 is a 40 V, 3.5 A step down regulator with an integrated high-side MOSFET. With a wide input range from 4 V to 40 V, it’s suitable for various applications from industrial to automotive for power conditioning from unregulated sources. An extended family is available in 2 A and 5 A options in pin-to-pin compatible packages, including LMR14020-Q1 and LMR14050-Q1. The regulator’s quiescent current is 40 µA in Sleep-mode, which is suitable for battery powered systems. An ultra-low 1 µA current in shutdown mode can further prolong battery life. A wide adjustable switching frequency range allows either efficiency or external component size to be optimized. Internal loop compensation means that the user is free from the tedious task of loop compensation design. This also minimizes the external components of the device. A precision enable input allows simplification of regulator control and system power sequencing. The device also has built-in protection features such as cycle-by-cycle current limit, thermal sensing and shutdown due to excessive power dissipation, and output overvoltage protection.

The LMR14030-Q1 is available in an 8-pin HSOIC or 10-pin WSON package with exposed pad for low thermal resistance.
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기술 자료

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12개 모두 보기
유형 직함 날짜
* Data sheet LMR14030-Q1 SIMPLE SWITCHER® 40 V, 3.5 A Step-Down Converter with 40 µA IQ datasheet (Rev. A) PDF | HTML 2016/02/03
Application note Design Consideration on Boot Resistor in Buck Converter PDF | HTML 2023/05/15
Selection guide Automotive Infotainment EE Buck Converter/Controller Selection Guide (Rev. B) 2021/04/15
Application note Reduce Conducted EMI in Automotive Buck Converter Applications 2019/07/31
Application note How to Evaluate Junction Temperature Properly with Thermal Metrics (Rev. B) 2019/03/29
Technical article Which multichannel buck converter layout offers better EMI performance? PDF | HTML 2018/10/23
Application note How SYNC Logic Affects EMI Performance for Dual-Channel Buck Converters 2018/04/27
Application note Low Conducted EMI Power Solution for Automotive Digital Cockpit With LMR14050 an 2018/02/07
Application note Design Feedforward Capacitor for LMR14020 2017/12/20
Application note How to Evaluate the Maximum Inductor in Internal Compensation PCM Buck Converter 2017/09/20
Application note Extending Buck Regulator to Positive Buck-Boost Configuration 2017/09/02
EVM User's guide LMR14030QDPR EVM User's Guide 2016/02/08

설계 및 개발

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

평가 보드

LMR14030QDPREVM — LMR14030QDPR 넓은 Vin 스텝다운 컨버터 평가 모듈

The LMR14030QDPREVM is a fully assembled and tested circuit for evaluating the LMR14030QDPRRQ1 Step-Down Converter. The LMR14030QDPREVM operates from 7V to 40V input (12V nominal) and provides a 5.0V or 3.3V output at 3.5A. The board has jumper connectors to enable or disable the converter (...)
사용 설명서: PDF
TI.com에서 구매 불가
평가 보드

LMR14030SEVM — LMR14030S 스텝다운 컨버터 평가 모듈

The LMR14030SEVM is a fully assembled and tested circuit for evaluating the LMR14030S Step-Down Converter. The LMR14030SEVM operates from 7V to 36V input (12V nominal) and provides a 5.0V or 3.3V output at 3.5A. The board also has jumper connectors to enable or disable the converter operation, (...)

사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

LMR14030S PSPICE Transient Model

SNVM707.ZIP (61 KB) - PSpice Model
다운로드
시뮬레이션 모델

LMR14030S PSpice Average Model

SNVMBD5.ZIP (72 KB) - PSpice Model
다운로드
시뮬레이션 모델

LMR14030S Unencrypted PSpice Transient Model

SNVM922.ZIP (6 KB) - PSpice Model
다운로드
레퍼런스 디자인

TIDA-020001 — 오토모티브 144존 로컬 밝기 조절 백라이트 레퍼런스 설계

This local dimming backlight reference design conserves power, extends the life of liquid-crystal displays (LCDs), and enhances automotive display quality through high dynamic range (HDR) or localized dimming technology. Seven multi-channel constant-current LED drivers allow for 144-zone localized (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

PMP11136 — 차량용 무선 USB 전원 포트(5V@2.1A) 및 LED 백라이트 드라이버 레퍼런스 디자인

The PMP11136 reference design supplies cable drop compensated USB outputs of 5V @ 2.1A and 5V @ 1A. Additionally, there is a buck converter output of 3.3V @ 2.5A and a 12V @ 0.163A current regulated LED boost converter.
Test report: PDF
회로도: PDF
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
HSOIC (DDA) 8 Ultra Librarian
WSON (DPR) 10 Ultra Librarian
TI의 평가 항목에 대한 표준 약관이 적용됩니다.

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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