계산 툴
데이터시트
LM5176-Q1
- AEC-Q100 qualified for automotive applications
- Temperature grade 1: -40°C to 125°C TA
- 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 package
- Create a custom design using the LM5176-Q1 with the WEBENCH Power Designer
The LM5176-Q1 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-Q1 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-Q1 employs 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-Q1 features optional average input or output current limiting, optional spread spectrum to reduce peak EMI, and optional hiccup mode protection in sustained overload conditions.
기술 문서
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모두 보기6 | 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | LM5176-Q1 55-V Wide VIN Synchronous 4-Switch Buck-Boost Controller datasheet (Rev. B) | PDF | HTML | 2021/08/13 |
| Application note | Bidirectional TEC Driver Design for 40-W TEC | PDF | HTML | 2023/06/02 | |
| Functional safety information | LM5176 and LM5176-Q1 Functional Safety, FIT Rate, Failure FMD | 2020/05/22 | ||
| 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 |
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
The LM5176EVM-HP demonstrates a flexible high power buck-boost design using the LM5176 wide-vin buck-boost controller. The evaluation module is configured to operate from an input voltage range of 6V-36V and to provide a regulated 12-V output with up to 12A of load current.
사용 설명서: PDF
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| HTSSOP (PWP) | 28 | 옵션 보기 |
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