전원 관리 AC/DC 및 DC/DC 컨트롤러(외장 FET)

LM5176

활성

55V 광범위 VIN 동기 4 스위치 벅-부스트 컨트롤러

이 제품의 최신 버전이 있습니다

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다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
신규 LM51772 활성 I2C 인터페이스를 지원하는 55V 와이드 VIN 4 스위치 벅-부스트 컨트롤러 With I2C and higher efficiency

제품 상세 정보

Vin (min) (V) 4.2 Vin (max) (V) 55 Operating temperature range (°C) -40 to 125 Topology Buck-Boost Rating Catalog Vout (min) (V) 0.8 Vout (max) (V) 55 Features Adjustable current limit, Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Synchronous Rectification, UVLO adjustable Iq (typ) (µA) 2000 Duty cycle (max) (%) 100 TI functional safety category Functional Safety-Capable
Vin (min) (V) 4.2 Vin (max) (V) 55 Operating temperature range (°C) -40 to 125 Topology Buck-Boost Rating Catalog Vout (min) (V) 0.8 Vout (max) (V) 55 Features Adjustable current limit, Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Synchronous Rectification, UVLO adjustable Iq (typ) (µA) 2000 Duty cycle (max) (%) 100 TI functional safety category Functional Safety-Capable
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4 VQFN (RHF) 28 20 mm² 5 x 4
  • Functional Safety-Capable
  • Single inductor buck-boost controller for step-up/step-down DC/DC conversion
  • Wide VIN: 4.2 V (2.5 V with bias) to 55 V (60 V maximum)
  • Flexible VOUT: 0.8 V to 55 V
  • VOUT short protection
  • High efficiency buck-boost transition
  • Adjustable switching frequency
  • Optional frequency sync and dithering
  • Integrated 2-A MOSFET gate drivers
  • Cycle-by-cycle current limit and optional hiccup
  • Optional input or output average current limiting
  • Programmable input UVLO and soft start
  • Power Good and output overvoltage protection
  • Available in HTSSOP-28 and QFN-28 packages
  • Create a custom design using the LM5176 with the WEBENCH Power Designer
  • Functional Safety-Capable
  • Single inductor buck-boost controller for step-up/step-down DC/DC conversion
  • Wide VIN: 4.2 V (2.5 V with bias) to 55 V (60 V maximum)
  • Flexible VOUT: 0.8 V to 55 V
  • VOUT short protection
  • High efficiency buck-boost transition
  • Adjustable switching frequency
  • Optional frequency sync and dithering
  • Integrated 2-A MOSFET gate drivers
  • Cycle-by-cycle current limit and optional hiccup
  • Optional input or output average current limiting
  • Programmable input UVLO and soft start
  • Power Good and output overvoltage protection
  • Available in HTSSOP-28 and QFN-28 packages
  • Create a custom design using the LM5176 with the WEBENCH Power Designer

The LM5176 is a synchronous four-switch buck-boost DC/DC controller capable of regulating the output voltage at, above, or below the input voltage. The LM5176 operates over a wide input voltage range of 4.2 V to 55 V (60-V absolute maximum) to support a variety of applications.

The LM5176 uses current-mode control both in buck and boost modes of operation for superior load and line regulation. The switching frequency is programmed by an external resistor and can be synchronized to an external clock signal.

The device also features a programmable soft-start function and offers protection features including cycle-by-cycle current limiting, input undervoltage lockout (UVLO), output overvoltage protection (OVP), and thermal shutdown. In addition, the LM5176 features optional average input or output current limiting, optional spread spectrum to reduce peak EMI, and optional hiccup mode protection in sustained overload conditions.

The LM5176 is a synchronous four-switch buck-boost DC/DC controller capable of regulating the output voltage at, above, or below the input voltage. The LM5176 operates over a wide input voltage range of 4.2 V to 55 V (60-V absolute maximum) to support a variety of applications.

The LM5176 uses current-mode control both in buck and boost modes of operation for superior load and line regulation. The switching frequency is programmed by an external resistor and can be synchronized to an external clock signal.

The device also features a programmable soft-start function and offers protection features including cycle-by-cycle current limiting, input undervoltage lockout (UVLO), output overvoltage protection (OVP), and thermal shutdown. In addition, the LM5176 features optional average input or output current limiting, optional spread spectrum to reduce peak EMI, and optional hiccup mode protection in sustained overload conditions.

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기술 자료

star =TI에서 선정한 이 제품의 인기 문서
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12개 모두 보기
유형 직함 날짜
* Data sheet LM5176 55-V Wide VIN Synchronous 4-switch Buck-boost Controller datasheet (Rev. D) PDF | HTML 2021/08/10
Application note Bidirectional TEC Driver Design for 40-W TEC PDF | HTML 2023/06/02
E-book An Engineer’s Guide to Low EMI in DC/DC Regulators 2021/04/21
Functional safety information LM5176 and LM5176-Q1 Functional Safety, FIT Rate, Failure FMD 2020/05/22
Technical article Adjusting VOUT in USB Type-C™ and wireless charging applications, part 2 PDF | HTML 2020/02/18
Technical article Adjusting VOUT in USB Type-C™ and wireless charging applications, part 1 PDF | HTML 2020/02/10
Technical article Four-switch buck-boost layout tip No. 4: routing gate-drive and return paths PDF | HTML 2019/02/20
Application note A Method to Improve LM5176 Overcurrent Protection Feature 2018/08/08
Application note LM5176 Power Sharing Between Two Parallel, Four-Switch Buck-Boost Converters 2018/07/16
White paper An overview of radiated EMI specifications for power supplies 2018/06/05
White paper An overview of conducted EMI specifications for power supplies 2018/02/01
EVM User's guide LM5176 Wide-VIN Buck-Boost Controller EVM 2017/05/02

설계 및 개발

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

평가 보드

LM5176EVM-HP — LM5176 넓은 VIN 벅 부스트 컨트롤러 평가 모듈

LM5176EVM-HP는 LM5176 와이드 VIN 벅 부스트 컨트롤러를 사용하여 유연한 고전력 벅 부스트 설계를 시연합니다. 평가 모듈은 6V~36V의 입력 전압 범위에서 작동하도록 구성되어 있으며, 최대 12A의 부하 전류로 조정된 12V 출력을 제공합니다.
사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

LM5176 PSpice Transient Model (Rev. B)

SNVMBA4B.ZIP (147 KB) - PSpice Model
시뮬레이션 모델

LM5176 PSpice Transient Model (Rev. C)

SNVMBA4C.ZIP (120 KB) - PSpice Model
계산 툴

SNVC208 LM5176 Design Calculator

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨트롤러(외장 FET)
LM34936-Q1 오토모티브, 30V 넓은 VIN 동기 4 스위치 벅-부스트 컨트롤러 LM5176 55V 광범위 VIN 동기 4 스위치 벅-부스트 컨트롤러 LM5176-Q1 55V 광범위 VIN 동기 4 스위치 벅-부스트 컨트롤러, AEC-Q100 인증
레퍼런스 디자인

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A complete battery back-up, charger and monitoring is implemented with this reference design.  It includes switching between a 12/24-Vdc source and 12/24-V lead acid battery, constant current battery charging at 1A typical, battery maintenance float charge and monitoring circuits for the (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP21697 — 오토모티브 오디오 증폭기를 위한 가변 전압 전력 컨버터 5~35V 300W 피크 레퍼런스 설계

This reference design provides a variable output power for audio amplifiers from 5 V to 35 V controllable by a Pulse Width Modulator signal. The output power capability of 75 W RMS and 300 W peak is suitable for high power automotive audio amplifiers. Conversion is 4-switch Buck-Boost for greater (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP30549 — 고효율 32V/3A 동기 4스위치 벅-부스트 레퍼런스 설계

This telecom reference design features a highly effective 100-W, 4-switch buck-boost. The converter allows to drive a 32-V RF LDMOS out of a wide input range 17 V to 57 V with peak efficiency 98% plus. An input filter is implemented to reduce conducted emissions to source. Additionally, a spread (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP21278 — 산업용 PC를 위한 300W 12Vout 4스위치 벅 부스트 레퍼런스 설계

The PMP21278 reference design is a 300W power supply utilizing the LM5176 4-switch buck-boost controller for industrial applications. This design can operate from 9V to 50V. The design has a 12V output and capable of sourcing 25A continuous current. Switching frequency is set to 230kHz. PMP21278 (...)
Test report: PDF
회로도: PDF
패키지 CAD 기호, 풋프린트 및 3D 모델
HTSSOP (PWP) 28 Ultra Librarian
VQFN (RHF) 28 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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