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

LMR14030

활성

SIMPLE SWITCHER® 40V, 3.5A, 2.2MHz 스텝다운 컨버터(40uA IQ)

지금 주문
데이터 시트

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
LMR33630 활성 SIMPLE SWITCHER® 3.8V~36V, 3A 동기 벅 컨버터, 초저 EMI Smaller footprint, higher efficiency, lower IQ and lower EMI.

LMR14030

활성
데이터 시트 지금 주문

제품 상세 정보

Rating Catalog 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, Tracking, UVLO adjustable Control mode current mode Vout (min) (V) 1 Vout (max) (V) 36 Iq (typ) (µA) 40 Duty cycle (max) (%) 98
Rating Catalog 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, Tracking, UVLO adjustable Control mode current mode Vout (min) (V) 1 Vout (max) (V) 36 Iq (typ) (µA) 40 Duty cycle (max) (%) 98
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • 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
  • 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
  • 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
  • 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 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. 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 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. 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.
filter 기타 AC/DC 및 DC/DC 컨버터(통합 FET) 찾기
다운로드 스크립트와 함께 비디오 보기 동영상

관심 가지실만한 유사 제품

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
LMR33640 활성 SOIC-8 패키지의 SIMPLE SWITCHER® 3.8V~36V, 4A 스텝다운 컨버터 Next-generation 3.8-V to 36-V, 4-A step-down converter in SOIC-8 package.
LMR51430 활성 40µA IQ를 지원하는 SIMPLE SWITCHER® 4.5V~36V, 3A 동기 벅 컨버터 Lower Vin voltage, synchronous solution, SOT23-6 package for personal electronics and industrial applications

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
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12개 모두 보기
유형 직함 날짜
* Data sheet LMR14030 SIMPLE SWITCHER® 40 V 3.5 A, 2.2 MHz Step-Down Converter with 40 µA IQ datasheet (Rev. A) PDF | HTML 2015/04/09
Application note Simple Solution for EMI Filter Stability Issue in DC/DC Converters (Rev. A) 2019/04/25
Application note How to Evaluate Junction Temperature Properly with Thermal Metrics (Rev. B) 2019/03/29
Application note How SYNC Logic Affects EMI Performance for Dual-Channel Buck Converters 2018/04/27
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
Application note AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 2013/04/24
Application note AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 2013/04/23
Application note AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 2013/04/23
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

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
평가 보드

TPS254900AQ1EVM — LMR14030 3.5A 강압 레귤레이터가 포함된 TPS254900A-Q1 평가 모듈

The TPS254900AQ1 evaluation module (TPS254900AQ1EVM) contains evaluation and reference circuitry for the TPS254900AQ1, which is a USB charging controller and power switch, integrated VBUS and D+/D- short to battery protection, cable compensation, current monitor (IMON) and IEC ESD protection, which (...)
사용 설명서: PDF
TI.com에서 구매 불가
평가 보드

TPS254900Q1EVM-817 — LMR14030 3.5A 강압 레귤레이터 평가 모듈이 포함된 TPS254900Q1

The TPS254900-Q1 evaluation module (TPS254900Q1EVM-817) contains evaluation and reference circuitry for the TPS254900-Q1, which is a USB charging controller and power switch, integrated VBUS and D+/D- short to battery protection, cable compensation, current monitor (IMON) and IEC ESD protection, (...)
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

PMP11594 — USB Type-C™ DFP 5V3A 충전기 레퍼런스 디자인

The PMP11594 is a low cost 5V3A charger reference design which provides Type C DFP feature and is compliant with BC1.2 device.  The design includes a non-synchronous step-down regulator LMR14030 and highly integrated USB type-C controller TPS25810. The PMP11594 demonstrates high efficiency, (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

TIDA-00845 — 배터리 단락 보호를 지원하는 2포트 오토모티브 USB 2.0 허브 레퍼런스 디자인

TIDA-00845 is a dual-port USB 2.0 hub with the ability to withstand a short of up to 18-V DC on both downstream ports, as well as Level 4 IEC 61000-4-2 ESD protection, overcurrent conditions, and shorts to ground. This protection is provided by an integrated protection device - the (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-03026 — LED 및 오디오 피드백을 지원하는 상태 표시등 레퍼런스 디자인

The TIDA-03026 reference design functionality emulates status indication subsystems in various end equipments. By putting multiple LED drivers in parallel, an array of RGB LEDs can be synchronized to blink, pulse, and breathe - enhancing customer experience. Audio feedback is also integrated (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-00376 — 피에조 스피커 스트로브 알림 레퍼런스 디자인

TIDA-00376 uses our industrial piezo driver, flash LED driver and the ultra-low-power FRAM microcontroller (MCU) to demonstrate the implementation of both audible and visual notification subsystems primarily intended for fire alert end-equipment systems. This reference design demonstrates (...)
사용 설명서: PDF
회로도: PDF
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
HSOIC (DDA) 8 Ultra Librarian
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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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