LM2735
- Input Voltage Range: 2.7 V to 5.5 V
- Output Voltage Range: 3 V to 24 V
- 2.1-A Switch Current Over Full Temperature Range
- Current-Mode Control
- Logic High Enable Pin
- Ultra-Low Standby Current of 80 nA in Shutdown
- 170-mΩ NMOS Switch
- ±2% Feedback Voltage Accuracy
- Ease-of-Use,
Small Total Solution Size
- Internal Soft Start
- Internal Compensation
- Two Switching Frequencies
- 520 kHz (LM2735-Y)
- 1.6 MHz (LM2735-X)
- Uses Small Surface Mount Inductors and Chip Capacitors
- Tiny SOT-23, WSON, and MSOP-PowerPAD™ Packages
- Create a Custom Design Using the LM2735 With WEBENCH® Power Designer
The LM2735 device is an easy-to-use, space-efficient 2.1-A low-side switch regulator, ideal for Boost and SEPIC DC/DC regulation. The device provides all the active functions to provide local DC-DC conversion with fast-transient response and accurate regulation in the smallest PCB area. Switching frequency is internally set to either 520 kHz or 1.6 MHz, allowing the use of extremely small surface mount inductor and chip capacitors, while providing efficiencies of up to 90%. Current-mode control and internal compensation provide ease-of-use, minimal component count, and high-performance regulation over a wide range of operating conditions. External shutdown features an ultra-low standby current of 80 nA, ideal for portable applications. Tiny SOT-23, WSON, and MSOP-PowerPAD packages provide space savings. Additional features include internal soft start, circuitry to reduce inrush current, pulse-by-pulse current limit, and thermal shutdown.
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 | LM2735 520-kHz and 1.6-MHz Space-Efficient Boost and SEPIC DC/DC Regulator datasheet (Rev. I) | PDF | HTML | 2018/9/5 | ||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 應用說明 | Design of UVLO for LM27313 (Rev. B) | 2014/4/8 | ||||
| 應用說明 | AN-1658 LM2735 BOOST and SEPIC DC-DC Regulator (Rev. A) | 2013/4/23 | ||||
| 使用指南 | High Efficiency Portable Media Player (PMP) Dock Station User Guide | 2012/1/27 |
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)。
LM2735XMFEVAL — 520 kHz 1.6 MHz - 節省空間的升壓和 SEPIC DC-DC 穩壓器 LM2735X 升壓 5 針腳 SOT23 展示板
The demo board included in this shipment uses the LM2735X 1.6MHz DC-DC switching regulator that converts 3V to 5.5V input to 12V output for up to 500mA load current depending on Vin. This is a 2-layer board using the bottom layer as a Ground plane.
LM2735XMYEVAL — 520kHz 1.6MHz 節省空間的升壓和 SEPIC DC-DC 穩壓器 LM2735Y 升壓 8 針腳 eMSOP 展示板
The demo board included in this shipment converts 3V to 5.5V input to 12V output for up to 500mA load current using the LM2735Y 520kHz DC-DC switching converter in the 8-Pin eMSOP package. This is a 2-layer board using the bottom layer as a Ground plane.
LM2735YMFEVAL — 520 kHz 1.6 MHz 節省空間的升壓和 SEPIC DC-DC 穩壓器 LM2735Y 升壓 5 針腳 SOT23 展示板
The demo board included in this shipment converts 3V to 5.5V input to 12V output for up to 500mA load current using the LM2735Y 520kHz DC-DC switching converter. This is a 2-layer board using the bottom layer as a ground plane.
FLYBUCK-FLYBACK-DESIGN-CALC — Flybuck / Flyback Calculator
此工具協助電源供應工程師根據規格選擇正確的隔離式 DC-DC 拓撲結構。根據選擇的拓撲結構，計算機還會推薦適合設計的 IC。
TIDA-010055 — 非隔離電源架構，具有用於保護繼電器模組的診斷參考設計
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23 (DBV) | 5 | Ultra Librarian |
| HVSSOP (DGN) | 8 | Ultra Librarian |
| WSON (NGG) | 6 | 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。