LM3475
- Easy-to-Use Control Methodology
- 0.8 V to VIN Adjustable Output Range
- High Efficiency (90% Typical)
- ±0.9% (±1.5% Over Temperature) Feedback
Voltage - 100% Duty Cycle Capable
- Maximum Operating Frequency up to 2 MHz
- Internal Soft-Start
- Enable Pin
The LM3475 is a hysteretic P-FET buck controller designed to support a wide range of high efficiency applications in a very small SOT-23-5 package. The hysteretic control scheme has several advantages, including simple system design with no external compensation, stable operation with a wide range of components, and extremely fast transient response. Hysteretic control also provides high efficiency operation, even at light loads. The PFET architecture allows for low component count as well as 100% duty cycle and ultra-low dropout operation.
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 | LM3475 Hysteretic PFET Buck Controller datasheet (Rev. C) | PDF | HTML | 2015/10/31 | ||
| 類比設計期刊 | Control-Mode Quick Reference Guide (Rev. B) | PDF | HTML | 2023/8/29 | |||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 使用指南 | PMLK Buck Experiment Book (Rev. B) | 2017/4/21 | ||||
| 使用指南 | Cost Effective Test Methods Using PMLK BUCK Boards (Rev. A) | 2016/8/31 |
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)。
LM3475EVAL — 磁滯 PFET 降壓控制器
The LM3475 evaluation board is provided as a tool for developing DC/DC converters based on the LM3475 IC. As shown in Figure 1, the evaluation board is configured to provide an output of 2.5V at up to 2A from an input up to 10V. The corresponding bill of material is given in Table 1. Typical (...)
PMLKBUCKEVM — 使用 TPS54160 和 LM3475 的 TI-PMLK 降壓實驗電路板
TI-PMLK 升壓實驗板是 TI 電源管理實驗套件 (TI-PMLK) 系列的一部分。TI-PMLK 系列提供動手實作的學習方式，以加強對電源供應知識的理解。模組化格式允許使用者依自身需求客製化 TI-PMLK 系列的學習體驗，以達到對電源設計理解的最大效益。TI-PMLK 降壓實驗板採用 TPS54160 與 LM3475。TI-PMLK 降壓實驗室手冊包含涵蓋實際應用中各種穩態、暫態與動態條件測試的理論與實驗。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23 (DBV) | 5 | 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。