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LMR14020-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
- 4V to 40V input range
- 2A continuous output current
- Ultra-low 40µA operating quiescent current
- 90mΩ high-side MOSFET
- 75ns minimum switch-on time
- Current mode control
- Adjustable switching frequency from 200kHz to 2.5MHz
- Frequency synchronization to external clock
- Spread spectrum option for reduced EMI
- Fixed 5V output option
- Internal compensation for ease of use
- High duty cycle operation supported
- Precision enable input
- 1µA shutdown current
- External soft start
- Thermal, overvoltage, and short protection
The LMR14020-Q1 is a 40V, 2A step-down regulator with an integrated high-side MOSFET. With a wide input range from 4V to 40V, the device is designed for various applications from industrial to automotive for power conditioning from unregulated sources. An extended family is available in 3.5A and 5A options in pin-to-pin compatible packages, including LMR14030-Q1 and LMR14050-Q1. The regulator quiescent current is 40µA in sleep mode, which is designed for battery powered systems. An ultra-low 1µA 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 internal loop compensation 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 LMR14020-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 | LMR14020-Q1 SIMPLE SWITCHER® Power Converter, 40V, 2A, Automotive, Step-Down Converter With 40µA IQ datasheet (Rev. B) | PDF | HTML | 2024/12/20 |
| Application note | Design Consideration on Boot Resistor in Buck Converter | PDF | HTML | 2023/05/15 | |
| 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 | ||
| 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 | LMR14020QDPR EVM User Guide | 2016/02/08 |
설계 및 개발
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LMR14020QDPREVM — LMR14020QDPR 넓은 Vin 스텝다운 컨버터 평가 모듈
LMR14020SEVM — LMR14020S 스텝다운 컨버터 평가 모듈
The LMR14020SEVM is a fully assembled and tested circuit for evaluating the LMR14020S Step-Down Converter. The LMR14020SEVM operates from 7V to 30V input (12V nominal) and provides a 5.0V or 3.3V output at 2A. The board also has jumper connectors to enable or disable the converter operation, change (...)
| 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