現在提供此產品的更新版本
功能相同，但針腳輸出與所比較的裝置不同。
LMR34215-Q1
- AEC-Q100-qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, TA
- Functional Safety-Capable
- Designed for automotive applications
- Junction temperature range –40°C to +150°C
- 0.4-V dropout with 1.5-A load (typical)
- ±1.5% reference voltage tolerance
- 5-V fixed-output, adjustable output voltage options
- Suited for scalable power supplies
- Pin compatible with:
- LMR36015-Q1, LMR36006-Q1 (60 V, 0.6 A, or 1.5 A)
- LMR33630-Q1, LMR33620-Q1 (36 V, 2 A, or 3 A)
- 400-kHz, 2.1-MHz frequency options
- Pin compatible with:
- Integration reduces solution size and cost
- Small, 2-mm × 3-mm VQFN package with wettable flanks
- Few external components
- Low power dissipation across load spectrum
- 93% efficiency at 400 kHz (12 VIN, 5 VOUT, 1 A)
- Increased light load efficiency in PFM
- Low operating quiescent current of 24 µA
- Optmized for ultra low EMI requirements
- Meets CISPR25 class 5 standard
- Hotrod™ package minimizes switch node ringing
- Parallel input path minimizes parasitic inductance
- Spread spectrum reduces peak emissions
The LMR34215-Q1 regulator is an easy-to-use, synchronous, step-down DC/DC converter. With integrated high-side and low-side power MOSFETs, output current is delivered over a wide input voltage range of 4.2 V to 42 V.
The LMR34215-Q1 uses peak-current-mode control to provide optimal efficiency and output voltage accuracy. Precision enable gives flexibility by enabling a direct connection to the wide input voltage or precise control over device start-up and shutdown. The power-good flag, with built-in filtering and delay, offers a true indication of system status eliminating the requirement for an external supervisor.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | LMR34215-Q1 4.2-V to 42-V, 1.5-A Ultra-Small Synchronous Step-Down Converter datasheet (Rev. B) | PDF | HTML | 2020/11/19 | ||
| 選擇指南 | Buck Converter Quick Reference Guide (Rev. B) | 2021/4/8 | ||||
| 功能安全資訊 | LMR34215-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 2021/1/6 | |||
| 技術文章 | Powering levels of autonomy: a quick guide to DC/DC solutions for SAE autonomy lev | PDF | HTML | 2020/11/18 | |||
| 技術文章 | Optimizing flip-chip IC thermal performance in automotive designs | PDF | HTML | 2019/12/11 | |||
| 設計指南 | Automotive ADAS camera power supply reference design (Rev. A) | 2019/8/22 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
LMR34215FSC5EVM — 42-V、1.5-A 同步降壓轉換器評估模組
LMR36015AEVM — 同步降壓轉換器評估模組
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN-HR (RNX) | 12 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。