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 LM2738 regulator is a monolithic, high-frequency, PWM step-down DC-DC converter in an 8-pin WSON or 8-pin MSOP-PowerPAD package. It provides all the active functions for local DC-DC conversion with fast transient response and accurate regulation in the smallest possible PCB area.
With a minimum of external components, the LM2738 is easy to use. The ability to drive 1.5-A loads with an internal 250-mΩ NMOS switch using state-of-the-art 0.5-µm BiCMOS technology results in the best power density available. Switching frequency is internally set to 550 kHz LM2738Y or 1.6 MHz LM2738X, allowing the use of extremely small surface-mount inductors and chip capacitors. Even though the operating frequencies are very high, efficiencies up to 90% are easy to achieve. External enable is included, featuring an ultralow standby current of 400 nA. The LM2738 utilizes current-mode control and internal compensation to provide high-performance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry to reduce in-rush current, cycle-by-cycle current limit, thermal shutdown, and output over-voltage protection.
输出接口数 1
输出电压 0.8V ~ 18V
输出电流 1.5 A
静态电流 1.90 mA
调节输出数 1
开关频率 550 kHz
拓扑结构 Buck
输入电压Max 20 V
输入电压Min 3 V
输出电压Max 18 V
输出电压Min 0.8 V
输出电流Max 1.5 A
工作温度Max 125 ℃
工作温度Min -40 ℃
电源电压 3 V
输入电压 3V ~ 20V
安装方式 Surface Mount
引脚数 8
封装 MSOP-8
长度 3 mm
宽度 3 mm
高度 0.86 mm
封装 MSOP-8
工作温度 -40℃ ~ 125℃ TJ
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
REACH SVHC版本 2015/06/15
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
LM2738YMY/NOPB TI 德州仪器 | 当前型号 | 当前型号 |
LM2738YMYX/NOPB 德州仪器 | 类似代替 | LM2738YMY/NOPB和LM2738YMYX/NOPB的区别 |