Description

The SC1176 is a versatile 2 phase, synchronous, voltage mode PWM controller that may be used in two distinct ways. First, the SC1176 is ideal for applications where point of use output power exceeds any single input power budget. Alternatively, the SC1176 can be used as a dual switcher. The SC1176 features a temperature compensated voltage reference, over current protection with 50 fold-back and internal level-shifted, high-side drive circuitry.

Features

◆ 300kHz fixed frequency operation

◆ Soft Start and Enable function

◆ Power Good output provided

◆ Over current protection with 50 fold-back

◆ Phase-shifted switchers minimize ripple

◆ High efficiency operation, >90

◆ Programmable output(s) as low as .9V

◆ Industrial temperature range

◆ SOIC-20 or TSSOP-20 pin Lead free package. This product is fully WEEE and RoHS compliant

Applications

◆ Graphics cards

◆ DDR Memory

◆ Peripheral add-in card

◆ SSTL Termination

◆ Dual-Phase power supply

◆ Power supplies requiring two outputs

SC1176A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SC1176ADC-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。