Description

The SC1211VX is a high speed, Combi-Sense®, dual output driver designed to drive high-side and low-side MOSFETs in a synchronous Buck converter. These drivers combined with Combi-Sense® PWM controllers, such as Semtech SC2643VX or SC2643, provide a cost effective multi-phase voltage regulator for advanced microprocessors.

Features

♦ High efficiency

♦ High peak drive current

♦ Adaptive non-overlapping gate drives provide shoot-through protection

♦ Support Combi-Sense® and VID-on-fly operations

♦ Fast rise and fall times (15ns typical with 3000pf load)

♦ Ultra-low (<30ns) propagation delay (BG going low)

♦ Floating top gate drive

♦ Crowbar function for over voltage protection

♦ High frequency (to 1.5 MHz) operation allows use of small inductors and low cost ceramic capacitors

♦ Under-voltage-lockout

♦ Low quiescent current

♦ Power SOIC-8L package, fully RoHS and WEEE compliant

Applications

♦ Intel Pentium® processor power supplies

♦ AMD Athlon™ and AMD-K8™ processor power supplies

♦ High efficiency portable and notebook computers

♦ Battery powered applications

♦ High current low voltage DC-DC converters

SC1211VXSTRT属于集成电路（IC） > PMIC - 稳压器 - DC DC 开关式控制器。Semtech Corporation制造生产的SC1211VXSTRTDC-DC 开关控制器PMIC（电源管理集成电路）DC 到 DC 开关式控制器是用于高效率电路的稳压 IC，其配置为生成高于（突升或步升）或低于（突降或步降）输入电源的输出电源电压。其他拓扑结构可能包括：降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。