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
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM5009 Wide Input, 100-V,150-mA, Step-Down Switching Regulator datasheet (Rev. I) | PDF | HTML | 2021年 5月 25日 |
| Application note | Stability Analysis and Design of COT Type-3 Ripple Circuit | 2019年 3月 20日 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| Technical article | Simplifying 100V wide VIN power conversion | PDF | HTML | 2016年 11月 11日 | |
| Technical article | Who tampered with my PLC? Are industrial control systems too flexible? | PDF | HTML | 2016年 8月 5日 | |
| White paper | Wide VIN power management ICs simplify white paper (Rev. A) | 2013年 9月 19日 | ||
| Application note | AN-1820 LM5032 Interleaved Boost Converter (Rev. A) | 2013年 5月 6日 | ||
| Application note | Analysis & Design of Hysteretic Constant Freq Buck Regr Using the LM5007 (Rev. B) | 2013年 4月 30日 | ||
| Application note | Boot Capacitor Regulation in LM25007 Constant-On-Time (COT) Converter (Rev. A) | 2013年 4月 23日 | ||
| Application note | Controlling Output Ripple & Achiev ESR Indep Constant On-Time Reg Designs (Rev. A) | 2013年 4月 23日 |
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-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
TIDA-00236 — 適用 PLC 的低壓側 0.5A 八通道數位輸出模組
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSSOP (DGK) | 8 | Ultra Librarian |
| WSON (NGU) | 8 | 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
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。