DC/DC POL转换器, 可调, 同步降压, 300KHz至1.5MHz, 3 V至18 V输入, 5 A, WQFN-28
The is a current mode Synchronous Buck Regulator with adjustable frequency. It is optimized for solution size, flexibility and high conversion efficiency. High-power density LM21305 design is easily achieved by virtue of monolithic integration of high-side and low-side power MOSFETs, high switching frequency, peak current-mode control and optimized thermal design. The efficiency of the LM21305 is maximized at light loads with diode emulation mode operation and at heavy loads by optimal design of the MOSFET adaptive gate drivers to minimize switch dead-times and body-diode conduction losses. The LM21305 offers flexible system configuration with programmable switching frequency from 300kHz to 1.5MHz using one resistor or by external clock synchronization for beat-frequency-sensitive and multi-regulator applications. On-chip bias supply low-dropout sub-regulators eliminate the need for an external bias power and simplify circuit board layout.
输出接口数 1
输出电压 0.6V ~ 5V
输出电流 5 A
针脚数 28
静态电流 9.00 mA
调节输出数 1
开关频率 1.5 MHz
拓扑结构 Buck
输入电压Max 18 V
输入电压Min 3 V
输出电压Max 18 V
输出电压Min 600 mV
输出电流Max 5 A
工作温度Max 85 ℃
工作温度Min -40 ℃
输入电压 3V ~ 18V
安装方式 Surface Mount
引脚数 28
封装 WFQFN-28
封装 WFQFN-28
工作温度 -40℃ ~ 85℃ TA
产品生命周期 Active
包装方式 Tape & Reel TR
制造应用 医用, 国防, 电源管理, 便携式器材, 军用与航空, 通信与网络, 成像, 电机驱动与控制, 信号处理, 视频和目视, 计算机和计算机周边
RoHS标准 RoHS Compliant
含铅标准 Lead Free
军工级 Yes
REACH SVHC版本 2015/06/15
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
LM21305SQ/NOPB TI 德州仪器 | 当前型号 | 当前型号 |
LM21305SQE/NOPB 德州仪器 | 类似代替 | LM21305SQ/NOPB和LM21305SQE/NOPB的区别 |
LM21305SQX/NOPB 德州仪器 | 功能相似 | LM21305SQ/NOPB和LM21305SQX/NOPB的区别 |