LM25005
- Integrated 42V, 160mΩ N-Channel MOSFET
- Ultra-Wide Input Voltage Range from 7V to 42V
- Internal Bias Regulator
- Adjustable Output Voltage from 1.225V
- 1.5% Feedback Reference Accuracy
- Current Mode Control with Emulated Inductor Current Ramp
- Single Resistor Oscillator Frequency Setting
- Oscillator Synchronization Input
- Programmable Soft-Start
- Shutdown / Standby Input
- Wide Bandwidth Error Amplifier
- Thermal Shutdown
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The LM25005 switching regulator features all of the functions necessary to implement an efficient, high voltage buck regulator using a minimum of external components. This easy to use regulator includes a 42V, 160mΩ, N-channel MOSFET, with an output current capability of 2.5 Amps. The regulator control method is based upon current mode control utilizing an emulated current ramp. Current mode control provides inherent line voltage feed-forward, cycle-by-cycle current limiting and ease of loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications. The operating frequency is programmable from 50kHz to 500kHz. An oscillator synchronization pin allows multiple LM25005 regulators to self-synchronize or to be synchronized to an external clock. Additional protection features include: current limit, thermal shutdown and remote shutdown capability. The device is available in a power enhanced HTSSOP package featuring an exposed die attach pad to aid thermal dissipation.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | LM25005 42V, 2.5A Step-Down Switching Regulator 数据表 (Rev. C) | 2013年 3月 20日 | |||
选择指南 | 电源管理指南 2018 (Rev. K) | 2018年 7月 31日 | ||||
白皮书 | Overcoming Challenges in Designing Step-Dwn Reg Apps w/40V Input Voltage (Rev. A) | 2018年 7月 3日 | ||||
选择指南 | 电源管理指南 2018 (Rev. R) | 2018年 6月 25日 | ||||
白皮书 | Buck regulator topologies for wide input/output voltage differentials (Rev. A) | 2016年 9月 15日 | ||||
EVM 用户指南 | AN-1749 LM25005 Evaluation Board (Rev. A) | 2013年 4月 24日 | ||||
应用手册 | 适用于输入输出电压差的降压稳压器电路结构 | 最新英语版本 (Rev.A) | 2007年 3月 28日 |
设计和开发
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封装 | 引脚 | 下载 |
---|---|---|
HTSSOP (PWP) | 20 | 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