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功能与比较器件相似
LM2727
- Input Power from 2.2V to 16V
- Output Voltage Adjustable Down to 0.6V
- Power Good flag, Adjustable Soft-Start and Output Enable for Easy Power Sequencing
- Output Over-Voltage and Under-Voltage Latch-Off (LM2727)
- Output Over-Voltage and Under-Voltage Flag (LM2737)
- Reference Accuracy: 1.5% (0°C - 125°C)
- Current Limit Without Sense Resistor
- Soft Start
- Switching Frequency from 50 kHz to 2 MHz
- TSSOP-14 Package
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The LM2727 and LM2737 are high-speed, synchronous, switching regulator controllers. They are intended to control currents of 0.7A to 20A with up to 95% conversion efficiencies. The LM2727 employs output over-voltage and under-voltage latch-off. For applications where latch-off is not desired, the LM2737 can be used. Power up and down sequencing is achieved with the power-good flag, adjustable soft-start and output enable features. The LM2737 and LM2737 operate from a low-current 5V bias and can convert from a 2.2V to 16V power rail. Both parts utilize a fixed-frequency, voltage-mode, PWM control architecture and the switching frequency is adjustable from 50kHz to 2MHz by adjusting the value of an external resistor. Current limit is achieved by monitoring the voltage drop across the on-resistance of the low-side MOSFET, which enhances low duty-cycle operation. The wide range of operating frequencies gives the power supply designer the flexibility to fine-tune component size, cost, noise and efficiency. The adaptive, non-overlapping MOSFET gate-drivers and high-side bootstrap structure helps to further maximize efficiency. The high-side power FET drain voltage can be from 2.2V to 16V and the output voltage is adjustable down to 0.6V.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | LM2727/2737 N-Chan FET Synch Buck Reg Cntrlr for Low Output Volt 数据表 (Rev. D) | 2013年 3月 28日 | |||
用户指南 | LM2742 降压控制器评估模块用户指南 (Rev. B) | PDF | HTML | 英语版 (Rev.B) | PDF | HTML | 2022年 7月 18日 | |
用户指南 | LM2727 降压控制器评估模块用户指南 (Rev. D) | PDF | HTML | 英语版 (Rev.D) | PDF | HTML | 2022年 7月 8日 | |
模拟设计期刊 | Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics | 2016年 7月 21日 |
设计和开发
如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。
封装 | 引脚 | 下载 |
---|---|---|
TSSOP (PW) | 14 | 查看选项 |
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