홈 전원 관리 AC/DC & DC/DC converters (integrated FET)
홈
전원 관리
AC/DC & DC/DC converters (integrated FET)

LMR14050

활성

SIMPLE SWITCHER® 40V, 5A, 2.2MHz 스텝다운 컨버터(40μA IQ)

지금 주문
데이터시트

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
LMR51450 활성 36V, 5A 동기식 벅 컨버터 Smaller solution size, higher efficiency and lower EMI.

LMR14050

활성
데이터시트 지금 주문

제품 상세 정보

Iout (max) (A) 5 Vin (min) (V) 4 Vin (max) (V) 40 Topology Buck Type Converter 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 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00004
Iout (max) (A) 5 Vin (min) (V) 4 Vin (max) (V) 40 Topology Buck Type Converter 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 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00004
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • 4 V to 40 V Input Range
  • 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
  • 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 LMR14050 is a 40 V, 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 LMR14050 is a 40 V, 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.
open-in-new 기타 AC/DC & DC/DC converters (integrated FET) 찾기
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관심 가지실만한 유사 제품

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
LM61460 활성 3V~36V, 6A 저 EMI 동기 스텝다운 컨버터 Next-generation 36-V, 6-A converter.

기술 문서

star =TI에서 선정한 이 제품의 인기 문서
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모두 보기14
유형 직함 날짜
* Data sheet LMR14050 SIMPLE SWITCHER® 40 V 5 A, 2.2 MHz Step-Down Converter with 40 µA IQ datasheet (Rev. A) PDF | HTML 2015/03/17
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
Technical article There are more ways than you think to reduce conducted EMI PDF | HTML 2018/04/17
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 LMR14050EVM User's Guide 2015/01/30
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

LMR14050SEVM — LMR14050S 스텝다운 컨버터 평가 모듈

The LMR14050SEVM is a fully assembled and tested circuit for evaluating the LMR14050S Step-Down Converter. The LMR14050SEVM operates from 7V to 36V input (12V nominal) and provides a 5.0V or 3.3V output at 5A. The board also has jumper connectors to enable or disable the converter operation, change (...)

사용 설명서: PDF
TI.com에서 구매할 수 없습니다
시뮬레이션 모델

LMR14050S PSPICE Transient Model

SNVM708.ZIP (62 KB) - PSpice Model
다운로드
시뮬레이션 모델

LMR14050S Unencrypted PSpice Transient Model

SNVM923.ZIP (6 KB) - PSpice Model
다운로드
레퍼런스 디자인

TIDA-01458 — 초음파 CW 펄서를 위한 저잡음 고정 드롭아웃 ±2.5 ~ ±12VOUT 3A 전원 공급 레퍼런스 디자인

This reference design allows a digitally programmable power supply to power an ultrasound transmit circuit for continuous wave (CW) mode from a 24-V bus. There are two outputs adjustable from ±2.5 to ±12 V under user software control. These outputs can provide up to 2 A with very low (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

PMP10743 — LMR14050 및 LMZ20502의 7V~40V 넓은 입력, 3출력 SIMPLE SWITCHER® 레퍼런스 디자인

The reference design shows the wide input voltage capability, simple layout, and small solution size of the LMR14050 SIMPLE SWITCHER® Buck Converter and the LMZ20502 Nano Module. The LMR14050 provides a 5V output rail which feeds into two LMZ20502 Nano Modules.  The modules provide a 3.3V (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP10680 — 4.5V~24V 넓은 입력, 음극 5V/2A 출력 비동기 컨버터 레퍼런스 디자인

The PMP10680 reference design is a non-sync buck converter with buck-boost configuration. The PMP10680 accepts an input voltage of 4.5 to 24Vin and provides a negative 5V output capable of supplying continuous 2A of current to the load. With negative output and the self-positive input, (...)
Test report: PDF
회로도: PDF
패키지 핀 다운로드
HSOIC (DDA) 8 옵션 보기
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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

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