現在提供此產品的更新版本
功能相似於所比較的產品
LM3495
- Input Voltage from 2.9V to 18V
- Output Voltage Adjustable from 0.6V to 5.5V
- Feedback Accuracy: ±1%
- Low-Side Sensing, Programmable Current Limit without Sense Resistor
- Input Under Voltage Lockout
- Hiccup Mode Current Limit Protection Eliminates Thermal Runaway During Fault Conditions
- Internal Soft Start with Tracking Capability
- 200 kHz to 1.5 MHz Switching Frequency, Synchronizable
- On-Chip Gate Drivers
- Soft Output Discharge During Shutdown
- Startup into Output Pre-Bias
- Operation from a Single Input Rail
- Adaptive Duty Cycle Limit
- TSSOP-16 Package
All trademarks are the property of their respective owners.
The LM3495 is a PWM buck regulator which implements a unique emulated peak current mode control. This control method eliminates the switching noise which typically limits current mode operation at extremely short duty cycles and high operating frequency. The switching frequency is programmable between 200 kHz and 1.5 MHz, and can also be synchronized to an external clock. The LM3495 is also very fault tolerant with both switch node short, hiccup mode, and adaptive duty cycle limit protection. A 0.6V 1% reference and glitch free pre-biased start-up ensure the most demanding digital loads operate reliably. Internal soft start and the ability to track the output of another supply make the LM3495 versatile and efficient.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM3495 Emulated Peak Current Mode Buck Controller for Low Output Voltage datasheet (Rev. F) | 2013年 4月 4日 | |
| User guide | LM3495 Buck Controller Evaluation Module User's Guide (Rev. C) | 2022年 2月 1日 | ||
| Technical article | When and how to supply an external bias for buck controllers – part 2 | PDF | HTML | 2017年 12月 22日 | |
| Analog Design Journal | Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics | 2016年 7月 21日 | ||
| Application note | Emulatd Cur Mode Cntrl for Buck Regs Using Sample and Hold Technique | 2007年 3月 21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)。
LM3495EVAL — 適用於低輸出電壓的模擬峰值電流模式降壓控制器
The Evaluation Board has been designed for testing of various circuits using the LM3495 buck regulator controller. A complete schematic for all the components is shown in Figure 3. The board is four layers, consisting of signal/power traces on top and bottom, one internal ground plane, and an (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| TSSOP (PW) | 16 | 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