开关稳压器 2MHz, 350mA Step-Down DC-DC Converter 5-DSBGA -30 to 85
The LM3673 step-down DC-DC converter is optimized for powering low voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.7 V to 5.5 V. It provides up to 350-mA 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 ranging from 1.1 V to 3.3 V.
The device offers superior features and performance for mobile phones and similar portable systems. The LM3673 uses intelligent automatic switching between pulse width modulation PWM and pulse frequency modulation PFM for better efficiency. During PWM mode, the device operates at a fixed-frequency of 2 MHz typical. Hysteretic PFM mode extends the battery life by reducing the quiescent current to 16 µA typical during light load and standby operation. Internal synchronous rectification provides high efficiency during PWM mode operation. In shutdown mode, the device turns off and reduces battery consumption to 0.01 µA typical.
The LM3673 is available in a tiny 5-pin DSBGA package. A high switching frequency of 2 MHz typical allows the use of three tiny surface-mount components: an inductor and two ceramic capacitors.
输出接口数 1
输出电压 1.8 V
输出电流 350 mA
静态电流 16.0 µA
调节输出数 1
开关频率 2 MHz
拓扑结构 Buck
输入电压Max 5.5 V
输入电压Min 2.7 V
输出电压Min 1.8 V
输出电流Max 0.35 A
工作温度Max 85 ℃
工作温度Min -30 ℃
电源电压 2.7 V
输入电压 5.5 V
安装方式 Surface Mount
引脚数 5
封装 DSBGA-5
封装 DSBGA-5
工作温度 -30℃ ~ 85℃
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
LM3673TL-1.8/NOPB TI 德州仪器 | 当前型号 | 当前型号 |
LM3673TLX-1.8/NOPB 德州仪器 | 完全替代 | LM3673TL-1.8/NOPB和LM3673TLX-1.8/NOPB的区别 |
ADP2108ACBZ-1.8-R7 亚德诺 | 功能相似 | LM3673TL-1.8/NOPB和ADP2108ACBZ-1.8-R7的区别 |
LM3673TL-1.8 德州仪器 | 功能相似 | LM3673TL-1.8/NOPB和LM3673TL-1.8的区别 |