LM61440-Q1
- AEC-Q100 qualified with the following results:
- Temperature grade 1: –40°C to 150°C, TJ
- Functional Safety-Capable
- Optimized for ultra-low EMI requirements
- HotRod package minimizes switch node ringing
- Parallel input path minimizes parasitic inductance
- Spread spectrum reduces peak emissions
- Adjustable SW node rise time
- Designed for automotive applications
- Supports 42-V automotive load dump
- ±1% total output regulation accuracy
- VOUT adjustable from 1 V to 95% of VIN
- 0.3-V dropout with 3-A load (typical)
- High efficiency power conversion at all loads
- 7-µA no load current at 13.5 VIN, 3.3 VOUT
- 83% PFM efficiency at 1-mA, 13.5 VIN, 5 VOUT
- External bias option for improved efficiency
- Suitable for scalable power supplies
- Pin compatible with:
- LM61460-Q1 (36 V, 6 A, adjustable fSW)
- LM61435-Q1 (36, 3.5 A, adjustable fSW)
- Pin compatible with:
The LM61440-Q1 is an automotive-focused, high-performance, DC-DC synchronous step-down converter. With integrated high-side and low-side MOSFETs, up to 4 A of output current is delivered over a wide input range of 3.0 V to 36 V; tolerant of 42 V, easing input surge protection design. The LM61440-Q1 implements soft recovery from dropout eliminating overshoot on the output.
The LM61440-Q1 is specifically designed for minimal EMI. The device incorporates pseudo-random spread spectrum, adjustable SW node rise time, low-EMI VQFN-HR package featuring low switch node ringing, and optimized pinout for ease of use. The switching frequency can be set or synchronized between 200 kHz and 2.2 MHz to avoid noise sensitive frequency bands. In addition the frequency can be selected for improved efficiency at low operating frequency or smaller solution size at high operating frequency.
Auto-mode enables frequency foldback when operating at light loads, allowing an unloaded current consumption of only 7 µA (typical) and high light load efficiency. Seamless transition between PWM and PFM modes, along with very low MOSFET ON resistances and an external bias input, ensures exceptional efficiency across the entire load range.
관심 가지실만한 유사 제품
비교 대상 장치보다 업그레이드된 기능을 지원하는 드롭인 대체품
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | LM61440-Q1Automotive 3-V to 36-V, 4-A, Low EMI Synchronous Step-Down Converter datasheet (Rev. C) | PDF | HTML | 2021/06/22 |
Application note | How to Migrate Between LM614xx and LM624xx Product Families | PDF | HTML | 2021/11/01 | |
Functional safety information | LM614xx-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. B) | PDF | HTML | 2021/09/15 | |
EVM User's guide | LM61460-Q1 EVM User's Guide (Rev. D) | PDF | HTML | 2021/07/30 | |
Technical article | Powering levels of autonomy: a quick guide to DC/DC solutions for SAE autonomy lev | 2020/11/18 | ||
Functional safety information | FIT Rate, Failure Mode Distribution LM61440 Q1 | 2020/03/31 | ||
Technical article | Optimizing flip-chip IC thermal performance in automotive designs | PDF | HTML | 2019/12/11 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
LM61460EVM — 36V, 저 EMI 6A, 5V 동기, 400kHz, 스텝다운 컨버터 평가 모듈
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
VQFN-HR (RJR) | 14 | 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