Step-Down DC/DC Converters Integrated Switch up to 6V Input Max., LM Series, Texas Instruments### 直流/直流开关调节器转换器(集成开关),Texas InstrumentsTexas Instruments 的此系列高度集成的高效开关稳压器包括步升(升压)、步降(降压)、步升/降(增压/降压)和反相类型,为每个直流稳压器应用提供高效的解决方案。
The LM3691 step-down DC-DC converter is optimized for powering ultra-low-voltage circuits from a single Li-Ion cell or 3 cell NiMH/NiCd batteries. It provides up to 1-A load current over an input voltage range from 2.3 V to 5.5 V. There are several different fixed voltage output options available.
The LM3691 has a mode-control pin that allows the user to select Forced PWM mode or ECO mode that changes modes between gated PWM mode and PWM automatically, depending on the load. In ECO mode, the device offers superior efficiency and very low IQ under light load conditions. ECO mode extends the battery life through reduction of the quiescent current during light load conditions and system standby.
The LM3691 is available in a 6-pin DSBGA package. Only three external surface-mount components, a 1-μH inductor, a 4.7-μF input capacitor, and a 4.7-μF output capacitor, are required.
输出接口数 1
输出电压 1.8 V
输出电流 1 A
静态电流 64.0 µA
调节输出数 1
开关频率 4 MHz
拓扑结构 Buck
输入电压Max 5.5 V
输入电压Min 2.3 V
输出电压Max 3.3 V
输出电压Min 1.8 V
输出电流Max 1 A
工作温度Max 85 ℃
工作温度Min -30 ℃
电源电压 2.3 V
输入电压 2.3 V
安装方式 Surface Mount
引脚数 6
封装 WFBGA-6
长度 1.59 mm
宽度 1.295 mm
高度 0.335 mm
封装 WFBGA-6
工作温度 -30℃ ~ 85℃ TA
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 |
---|---|---|
LM3691TL-1.8/NOPB TI 德州仪器 | 当前型号 | 当前型号 |
LM3691TLX-1.8/NOPB 德州仪器 | 类似代替 | LM3691TL-1.8/NOPB和LM3691TLX-1.8/NOPB的区别 |