LM5163-Q1
- AEC-Q100-qualified for automotive applications
- Device temperature grade 1: –40°C to +125°C, ambient temperature range
- Designed for reliable and rugged applications
- Wide input voltage range of 6V to 100V
- Junction temperature range: –40°C to +150°C
- Fixed 3ms internal soft-start timer
- Peak and valley current-limit protection
- Input UVLO and thermal shutdown protection
- Optimized for ultra-low EMI requirements
- Suited for scalable automotive power supplies
- Low minimum on- and off-times of 50ns
- Adjustable switching frequency up to 1MHz
- Diode emulation for high light-load efficiency
- 10.5µA no-load input quiescent current
- 3µA shutdown quiescent current
- Integration reduces design size and cost
- COT mode control architecture
- Integrated 0.725Ω NFET buck switch
- Integrated 0.34Ω NFET synchronous rectifier eliminates external Schottky diode
- 1.2V internal voltage reference
- No loop compensation components
- Internal VCC bias regulator and boot diode
- Create a custom regulator design using WEBENCH power designer
The LM5163-Q1 synchronous buck converter is designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. A minimum controllable on-time of 50ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48V nominal input to low-voltage rails for reduced system complexity and solution cost. The LM5163-Q1 operates during input voltage dips as low as 6V, at nearly 100% duty cycle if needed, making the device an excellent choice for high-performance 48V battery automotive applications and MHEV/EV systems.
With integrated high-side and low-side power MOSFETs, the LM5163-Q1 delivers up to 0.5A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. Additional features of the LM5163-Q1 include ultra-low IQ and diode emulation mode operation for high light-load efficiency, innovative peak and valley overcurrent protection, integrated VCC bias supply and bootstrap diode, precision enable and input UVLO, and thermal shutdown protection with automatic recovery. An open-drain PGOOD indicator provides sequencing, fault reporting, and output voltage monitoring.
The LM5163-Q1 is qualified to automotive AEC-Q100 grade 1 and is available in a 8-pin SO PowerPAD™ package. The device 1.27mm pin pitch provides adequate spacing for high-voltage applications.
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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 | LM5163-Q1 100V Input, 0.5A Synchronous Buck DC/DC Converter With Ultra-low IQ datasheet (Rev. A) | PDF | HTML | 2024/4/23 | ||
| 技術文章 | MHEVs: Optimizing the automotive powertrain for efficiency and cost | PDF | HTML | 2021/5/24 | |||
| 功能安全資訊 | LM5163-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 2021/1/8 | |||
| 應用說明 | Stability Analysis and Design of COT Type-3 Ripple Circuit | 2019/3/20 | ||||
| 應用說明 | DC/DC Buck Converters With Ultra-Low IQ for Industrial Battery-Pack Applications | 2019/2/20 | ||||
| Application brief | IC Package Features Lead to Higher Reliability in Automotive Systems | 2019/2/20 |
設計與開發
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LM5164-Q1EVM — 同步降壓轉換器評估模組
LM5163-LM5164DESIGN-CALC — LM5163 和 LM5164 控轉換器快速入門設計工具
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HSOIC (DDA) | 8 | Ultra Librarian |
訂購與品質
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