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LM5007
- Versatile Synchronous Buck DC/DC Converter
- Operating Input Voltage Range of 9 V to 75 V
- Integrated 80-V, 0.7-A N-Channel Buck Switch
- Internal High-Voltage VCC Regulator
- Adjustable Output Voltage
- High Efficiency Operation
- Adaptive Constant On-Time Control Architecture
- Ultra-Fast Transient Response
- No Control Loop Compensation Required
- Nearly Constant Switching Frequency
- PWM On-Time Varies Inversely with Input Voltage
- Precision 2.5-V Reference
- Low Input Quiescent Current
- Inherent Protection Features for Robust Design
- Intelligent Current Limit Protection
- VCC and Gate Drive UVLO Protection
- Thermal Shutdown Protection With Hysteresis
- External Shutdown Control
- 8-Pin VSSOP and WSON Packages
- Create a Custom Regulator Design Using WEBENCH® Power Designer
The LM5007 0.5-A step-down switching converter features all of the functions needed to implement a low-cost and efficient buck regulator. This high-voltage converter has an integrated 80-V, 0.7-A N-channel buck switch and operates over an input voltage range of 9 V to 75 V. The device is easy to implement and is provided in 8-pin VSSOP and thermally enhanced 8-pin WSON packages.
The converter uses a hysteretic control scheme with a PWM on-time inversely proportional to VIN. This feature allows the operating frequency to remain relatively constant with load and input voltage variations. The hysteretic control requires no loop compensation and provides fast transient response. An intelligent current limit is implemented with forced off-time that is inversely proportional to VOUT. This current limiting scheme ensures short-circuit protection while providing reduced load current foldback. Other protection features include thermal shutdown with automatic recovery, VCC and gate drive undervoltage lockout, and maximum duty cycle limiter.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | LM5007 75-V, 0.5-A DC/DC Buck Converter With 80-V Integrated Power MOSFET datasheet (Rev. H) | PDF | HTML | 2018/11/06 |
Application note | Stability Analysis and Design of COT Type-3 Ripple Circuit | 2019/03/20 | ||
Technical article | Simplifying 100V wide VIN power conversion | PDF | HTML | 2016/11/11 | |
White paper | Wide VIN power management ICs simplify white paper (Rev. A) | 2013/09/19 | ||
EVM User's guide | AN-1298 LM5007 Evaluation Board (Rev. A) | 2013/04/30 | ||
Application note | Analysis & Design of Hysteretic Constant Freq Buck Regr Using the LM5007 (Rev. B) | 2013/04/30 | ||
Application note | Controlling Output Ripple & Achiev ESR Indep Constant On-Time Reg Designs (Rev. A) | 2013/04/23 | ||
More literature | LM5007 Quick Start Calculator | 2012/01/27 |
설계 및 개발
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LM5007EVAL — 80V 넓은 Vin 스텝다운 스위칭 레귤레이터 평가 보드
LM5007 High Voltage (80 V) Step Down Switching Regulator
TIDA-00290 — PoE PSE 타입 2(30W) IEEE 802.3at 완전 자동 쿼드 포트 솔루션.
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
VSSOP (DGK) | 8 | Ultra Librarian |
WSON (NGT) | 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