LM2694
- Integrated N-Channel Buck Switch
- Integrated Start-Up Regulator
- Input Voltage Range: 8V to 30V
- No Loop Compensation Required
- Ultra-Fast Transient Response
- Operating Frequency Remains Constant with Load Current and Input Voltage Variations
- Maximum Duty Cycle Limited During Start-Up
- Adjustable Output Voltage
- Valley Current Limit At 0.6A
- Maximum Switching Frequency: 1 MHz
- Precision Internal Reference
- Low Bias Current
- Highly Efficient Operation
- Thermal Shutdown
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The LM2694 Step Down Switching Regulator features all of the functions needed to implement a low cost, efficient, buck bias regulator capable of supplying 0.6A to the load. This buck regulator contains an N-Channel Buck Switch, and is available in the 3 x 3 thermally enhanced WSON-10 package and a TSSOP-14 package. The feedback regulation scheme requires no loop compensation, results in fast load transient response, and simplifies circuit implementation. The operating frequency remains constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The valley current limit results in a smooth transition from constant voltage to constant current mode when current limit is detected, reducing the frequency and output voltage, without the use of foldback. Additional features include: VCC under-voltage lockout, thermal shutdown, gate drive under-voltage lockout, and maximum duty cycle limiter.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | LM2694 30V, 600 mA Step Down Switching Regulator 数据表 (Rev. A) | 2013年 4月 5日 | |||
EVM 用户指南 | AN-1472 LM2694 Evaluation Board (Rev. A) | 2013年 5月 6日 |
设计和开发
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封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
TSSOP (PW) | 14 | Ultra Librarian |
WSON (DSC) | 10 | 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