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LMR14050-Q1
- Qualified for Automotive Applications
- AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to 125°C
Ambient Operating Temperature Range
- Device HBM ESD Classification Level H1C
- Device CDM ESD Classification Level C4A - 4 V to 40 V Input Range
- 5 A Continuous Output Current
- Ultra-low 40 µA Operating Quiescent Current
- 90 mΩ High-Side MOSFET
- Minimum Switch-On Time: 75 ns
- Current Mode Control
- Adjustable Switching Frequency from 200 kHz to
2.5 MHz - Frequency Synchronization to External Clock
- Spread Spectrum Option for Reduced EMI
- Internal Compensation for Ease of Use
- High Duty Cycle Operation Supported
- Precision Enable Input
- 1 µA Shutdown Current
- External Soft-start
- Thermal, Overvoltage and Short Protection
- 8-Pin HSOIC with PowerPAD™ Package
The LMR14050-Q1 is a 40 V, 5 A step down regulator with an integrated high-side MOSFET. With a wide input range from 4 V to 40 V, it’s suitable for various applications from industrial to automotive for power conditioning from unregulated sources. An extended family is available in 2 A and 3.5 A options in pin-to-pin compatible packages, including LMR14020-Q1 and LMR14030-Q1. The regulator’s quiescent current is 40 µA in Sleep-mode, which is suitable for battery powered systems. An ultra-low 1 µA current in shutdown mode can further prolong battery life. A wide adjustable switching frequency range allows either efficiency or external component size to be optimized. Internal loop compensation means that the user is free from the tedious task of loop compensation design. This also minimizes the external components of the device. A precision enable input allows simplification of regulator control and system power sequencing. The device also has built-in protection features such as cycle-by-cycle current limit, thermal sensing and shutdown due to excessive power dissipation, and output overvoltage protection.
The LMR14050-Q1 is available in an 8-pin HSOIC or 10-pin WSON package with exposed pad for low thermal resistance.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | LMR14050-Q1 SIMPLE SWITCHER® 40 V, 5 A Step-Down Converter with 40 µA IQ datasheet (Rev. A) | PDF | HTML | 2016/02/03 |
| Application note | Reduce Conducted EMI in Automotive Buck Converter Applications | 2019/07/31 | ||
| Application note | How to Evaluate Junction Temperature Properly with Thermal Metrics (Rev. B) | 2019/03/29 | ||
| Application note | How SYNC Logic Affects EMI Performance for Dual-Channel Buck Converters | 2018/04/27 | ||
| Technical article | There are more ways than you think to reduce conducted EMI | PDF | HTML | 2018/04/17 | |
| Application note | Low Conducted EMI Power Solution for Automotive Digital Cockpit With LMR14050 an | 2018/02/07 | ||
| Application note | Design Feedforward Capacitor for LMR14020 | 2017/12/20 | ||
| Application note | How to Evaluate the Maximum Inductor in Internal Compensation PCM Buck Converter | 2017/09/20 | ||
| EVM User's guide | LMR14050QDPR EVM USer's Guide | 2016/02/08 |
설계 및 개발
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| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| HSOIC (DDA) | 8 | Ultra Librarian |
| WSON (DPR) | 10 | 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