LM3676
- 16µA Typical Quiescent Current
- 600mA Maximum Load Capability
- 2MHz Typical PWM Fixed Switching Frequency
- Automatic PFM/PWM Mode Switching or Forced PWM Mode
- Available in Fixed Output Voltages and Adjustable Version
- 8-Lead Non-Pullback WSON Package
- Internal Synchronous Rectification for High Efficiency
- Internal Soft Start
- 0.01µA Typical Shutdown Current
- Operates From a Single Li-Ion Cell Battery
- Only Three Tiny Surface-Mount External Components Required (One Inductor, Two Ceramic Capacitors)
- Current Overload and Thermal Shutdown Protection
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The LM3676 step-down DC-DC converter is optimized for powering low voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.9V to 5.5V. It provides up to 600mA load current, over the entire input voltage range. There are several different fixed voltage output options available as well as an adjustable output voltage version.
The LM3676 has a mode-control pin that allows the user to select continuous Pulse Width Modulation (PWM) mode over the complete load range or an intelligent PFM-PWM mode that changes modes depending on the load. PWM mode offers superior efficiency under high load conditions (>100mA) and the lowest output noise performance. In Auto mode, PFM-PWM, hysteretic PFM extends the battery life through reduction of the quiescent current to 16µA (typ.) during light loads and system standby.
The LM3676 is available in a 8-lead non-pullback WSON package in leaded (PB) and lead-free (NO PB) versions. A high switching frequency of 2 MHz (typ) allows use of tiny surface-mount components, an inductor and two ceramic capacitors.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | LM3676 2MHz, 600mA Step-Down DC-DC Converter with Mode Control 数据表 (Rev. C) | 2013年 5月 2日 | |||
EVM 用户指南 | AN-1536 LM3676 Evaluation Board (Rev. D) | 2013年 4月 30日 | ||||
应用手册 | Application Note 1536 LM3676 Evaluation Board (cn) | 2008年 10月 14日 |
设计和开发
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封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
WSON (NGQ) | 8 | 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