550kHz/1.6MHz 1.5A 降压直流/直流开关稳压器 8-WSON -40 to 125
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.
频率 550 kHz
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
电源电压Min 3 V
输入电压 3V ~ 20V
安装方式 Surface Mount
引脚数 8
封装 WSON-8
封装 WSON-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
型号/品牌 | 代替类型 | 替代型号对比 |
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LM2738YSD/NOPB TI 德州仪器 | 当前型号 | 当前型号 |
LM2738YSDX/NOPB 德州仪器 | 功能相似 | LM2738YSD/NOPB和LM2738YSDX/NOPB的区别 |