LM5085
- LM5085-Q1 is an Automotive Grade Product that
is AEC-Q100 Grade 1 Qualified (–40°C to 125°C
Operating Junction Temperature) - Wide 4.5-V to 75-V Input Voltage Range
- Adjustable Current Limit Using RDS(ON) or a
Current Sense Resistor - Programmable Switching Frequency to 1MHz
- No Loop Compensation Required
- Ultra-Fast Transient Response
- Nearly Constant Operating Frequency with Line
and Load Variations - Adjustable Output Voltage from 1.25 V
- Precision ±2% Feedback Reference
- Capable of 100% Duty Cycle Operation
- Internal Soft-start Timer
- Integrated High Voltage Bias Regulator
- Thermal Shutdown
- Package:
- HVSSOP-8
- VSSOP-8
- WSON-8
The LM5085 is a high efficiency PFET switching regulator controller that can be used to quickly and easily develop a small, efficient buck regulator for a wide range of applications. This high voltage controller contains a PFET gate driver and a high voltage bias regulator which operates over a wide 4.5-V to 75-V input range. The constant on-time regulation principle requires no loop compensation, simplifies circuit implementation, and results in ultrafast load transient response. The operating frequency remains nearly constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The PFET architecture allows 100% duty cycle operation for a low dropout voltage. Either the RDS(ON) of the PFET or an external sense resistor can be used to sense current for over-current detection.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | LM5085/-Q1 75-V Constant On-Time PFET Buck Switching Controller datasheet (Rev. I) | PDF | HTML | 2015. 8. 12 | |
| 애플리케이션 노트 | Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B) | 2019. 3. 12 | |||
| 기술 문서 | Crafty idea: Create a 150V non synchronous buck solution with a lower Vin rated co | PDF | HTML | 2017. 8. 25 | ||
| 아날로그 디자인 학술지 | Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics | 2016. 7. 21 | |||
| 기술 문서 | How to design for EMC and isolation with Fly-Buck™ converters | PDF | HTML | 2015. 7. 28 | ||
| 애플리케이션 노트 | Transient Response versus Ripple – An Analysis of Ripple Injection Techniques | 2014. 4. 28 | |||
| 백서 | Wide VIN power management ICs simplify white paper (Rev. A) | 2013. 9. 19 | |||
| 애플리케이션 노트 | Constant Current Constant Voltage Buck Converter w/LM25085 (Rev. A) | 2013. 4. 23 | |||
| 애플리케이션 노트 | Designing Non-Invert Buck-Boost (Zeta) Cnvrts w/a Buck P-FET Cntrl | 2011. 4. 22 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
LM5085EVAL — LM5085 - 75V 넓은 Vin COT(Constant-On-Time) PFET 벅 스위칭 컨트롤러 평가 모듈
The LM5085 evaluation board provides the design engineer with a fully functional buck regulator, employing the LM5085 PFET switching controller which uses the constant on-time (COT) operating principle. The evaluation board provides a 5V output over an input range of 5.5V to 55V. The circuit (...)
LM5085 TINA-TI Load Transient Reference Design (Rev. A)
LM25085-5085QUICK-CALC — LM(2)5085 빠른 시작 계산기
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| HVSSOP (DGN) | 8 | Ultra Librarian |
| WSON (NGQ) | 8 | Ultra Librarian |
| VSSOP (DGK) | 8 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.