LM26400Y
- Input Voltage Range of 3 V to 20 V
- Dual 2-A Output
- Output Voltage Down to 0.6 V
- Internal Compensation
- 500-kHz PWM Frequency
- Separate Enable Pins
- Separate Soft-Start Pins
- Frequency Foldback Protection
- 175-mΩ NMOS Switch
- Integrated Bootstrap Diodes
- Overcurrent Protection
- HTSSOP and WSON Packages
- Thermal Shutdown
The LM26400Y device is a monolithic, two-output fixed-frequency PWM step-down DC-DC regulator, in a 16-pin WSON or thermally-enhanced HTSSOP package. With a minimum number of external components and internal loop compensation, the LM26400Y is easy to use.
The ability to drive 2-A loads with an internal 175-mΩ NMOS switch using state-of-the-art 0.5-µm BiCMOS technology results in a high-power density design. The world class control circuitry allows for an ON-time as low as 40 ns, thus supporting high-frequency conversion over the entire input range of 3 V to 20 V and down to an output voltage of only 0.6 V. The LM26400Y utilizes peak current-mode control and internal compensation to provide high-performance regulation over a wide range of line and load conditions. Switching frequency is internally set to 500 kHz, optimal for a broad range of applications in terms of size versus thermal tradeoffs.
Given a nonsynchronous architecture, efficiencies above 90% are easy to achieve. External shutdown is included, enabling separate turnon and turnoff of the two channels. Additional features include programmable soft-start circuitry to reduce inrush current, pulse-by-pulse current limit and frequency foldback, integrated bootstrap structure, and thermal shutdown.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | LM26400Y Dual 2-A, 500-kHz Wide Input Range Buck Regulator 数据表 (Rev. D) | PDF | HTML | 2015年 10月 13日 | ||
用户指南 | LM26400Y Step-Down Converter Evaluation Module User's Guide (Rev. B) | PDF | HTML | 2021年 12月 20日 | |||
选择指南 | 电源管理指南 2018 (Rev. K) | 2018年 7月 31日 | ||||
选择指南 | 电源管理指南 2018 (Rev. R) | 2018年 6月 25日 | ||||
白皮书 | Powering Multi-Rail Systems Using the LM26400Y Regulator | 2008年 1月 28日 | ||||
应用手册 | Application Note 1600 LM26400Y Demonstration Board (cn) | 最新英语版本 (Rev.B) | PDF | HTML | 2007年 3月 9日 |
设计和开发
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封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
HTSSOP (PWP) | 16 | Ultra Librarian |
WSON (NHQ) | 16 | Ultra Librarian |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点