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
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | LM5085/-Q1 75-V Constant On-Time PFET Buck Switching Controller datasheet (Rev. I) | PDF | HTML | 2015/08/12 |
| Technical article | Crafty idea: Create a 150V non synchronous buck solution with a lower Vin rated co | PDF | HTML | 2017/08/25 | |
| Analog Design Journal | Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics | 2016/07/21 | ||
| Technical article | How to design for EMC and isolation with Fly-Buck™ converters | PDF | HTML | 2015/07/28 | |
| Application note | Transient Response versus Ripple – An Analysis of Ripple Injection Techniques | 2014/04/28 | ||
| White paper | Wide VIN power management ICs simplify white paper (Rev. A) | 2013/09/19 | ||
| EVM User's guide | AN-1878 LM5085 Evaluation Board (Rev. B) | 2013/04/30 | ||
| Application note | Constant Current Constant Voltage Buck Converter w/LM25085 (Rev. A) | 2013/04/23 | ||
| Application note | Designing Non-Invert Buck-Boost (Zeta) Cnvrts w/a Buck P-FET Cntrl | 2011/04/22 |
설계 및 개발
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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)
LM5085 TINA-TI Startup Reference Design (Rev. A)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| HVSSOP (DGN) | 8 | Ultra Librarian |
| VSSOP (DGK) | 8 | Ultra Librarian |
| WSON (NGQ) | 8 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치