LM5009
- Newer product: LM5163 100-V, 0.5-A synchronous buck DC/DC converter
- Integrated N-channel MOSFET
- 150-mA output current capability
- Ultra-fast transient response
- No loop compensation required
- VIN feedforward provides constant operating frequency
- Switching frequency can exceed 600 kHz
- Highly efficient operation
- 2% accurate 2.5-V feedback from –40°C to +125°C
- Internal start-up regulator
- Intelligent current limit protection
- External shutdown control
- Thermal shutdown
- 8-pin VSSOP and thermally enhanced 8-pin WSON packages
The LM5009 step-down switching regulator features all of the functions needed to implement a low-cost and efficient, buck regulator. This device is capable of driving a 150-mA load current from a 9.5-V to 95-V input source. The switching frequency can exceed 600 kHz, depending on the input and output voltages. The output voltage can be set from 2.5 V to 85 V. This high-voltage regulator contains an N-channel buck switch and an internal startup regulator. The device is easy to implement and is provided in 8-pin VSSOP and thermally-enhanced, 8-pin WSON packages. The regulator operation is based on a control scheme using an on-time inversely proportional to VIN. This feature allows the operating frequency to remain relatively constant over load and input voltage variations. The control scheme requires no loop compensation, resulting in an ultrafast transient response. An intelligent current limit is implemented with forced off-time that is inversely proportional to VOUT. This scheme ensures short-circuit protection and provides minimum foldback. Other features include thermal shutdown, VCC undervoltage lockout, gate drive undervoltage lockout, and maximum duty cycle limiter.
The new product LM5163 offers reduced BOM count, reduced solution size, lower operating quiescent current and many other features. Start WEBENCH design with LM5163.
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 | LM5009 Wide Input, 100-V,150-mA, Step-Down Switching Regulator datasheet (Rev. I) | PDF | HTML | 2021/5/25 | ||
| 應用說明 | Stability Analysis and Design of COT Type-3 Ripple Circuit | 2019/3/20 | ||||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 技術文章 | Simplifying 100V wide VIN power conversion | PDF | HTML | 2016/11/11 | |||
| 技術文章 | Who tampered with my PLC? Are industrial control systems too flexible? | PDF | HTML | 2016/8/5 | |||
| 白皮書 | Wide VIN power management ICs simplify white paper (Rev. A) | 2013/9/19 | ||||
| 應用說明 | AN-1820 LM5032 Interleaved Boost Converter (Rev. A) | 2013/5/6 | ||||
| 應用說明 | Analysis & Design of Hysteretic Constant Freq Buck Regr Using the LM5007 (Rev. B) | 2013/4/30 | ||||
| 應用說明 | Controlling Output Ripple & Achiev ESR Indep Constant On-Time Reg Designs (Rev. A) | 2013/4/23 | ||||
| 應用說明 | Boot Capacitor Regulation in LM25007 Constant-On-Time (COT) Converter (Rev. A) | 2013/4/23 |
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)。
LM5009EVAL — 150mA、100V Wide Vin 降壓切換穩壓器評估模組
LM5009 150mA, 100V Step-Down Switching Regulator
TIDA-00236 — 適用 PLC 的低壓側 0.5A 八通道數位輸出模組
數位輸出模組是 PLC/PAC 或 DCS 中的標準元件，用於控制致動器、馬達和其他電阻、電容或電感性負載。客戶將可利用這種整合式保護低壓側驅動器和低接腳數控制介面，進而節省接腳和隔離通道。此設計能夠以小型尺寸在所有 8 通道上提供 0.5A，而不影響熱管理。
TIDA-01552 — 適用於數位輸出模組的八通道 2A 高壓側驅動器參考設計
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WSON (NGU) | 8 | Ultra Librarian |
| VSSOP (DGK) | 8 | 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。