現在提供此產品的更新版本
功能相同，但引腳輸出與所比較的裝置不同
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.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LMR14050-Q1 SIMPLE SWITCHER® 40 V, 5 A Step-Down Converter with 40 µA IQ datasheet (Rev. A) | PDF | HTML | 2016年 2月 3日 |
| Application note | Reduce Conducted EMI in Automotive Buck Converter Applications | 2019年 7月 31日 | ||
| Application note | How to Evaluate Junction Temperature Properly with Thermal Metrics (Rev. B) | 2019年 3月 29日 | ||
| Application note | How SYNC Logic Affects EMI Performance for Dual-Channel Buck Converters | 2018年 4月 27日 | ||
| Technical article | There are more ways than you think to reduce conducted EMI | PDF | HTML | 2018年 4月 17日 | |
| Application note | Low Conducted EMI Power Solution for Automotive Digital Cockpit With LMR14050 an | 2018年 2月 7日 | ||
| Application note | Design Feedforward Capacitor for LMR14020 | 2017年 12月 20日 | ||
| Application note | How to Evaluate the Maximum Inductor in Internal Compensation PCM Buck Converter | 2017年 9月 20日 | ||
| EVM User's guide | LMR14050QDPR EVM USer's Guide | 2016年 2月 8日 |
設計與開發
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HSOIC (DDA) | 8 | Ultra Librarian |
| WSON (DPR) | 10 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點