SC1175CSW集成电路（IC）的PMIC-稳压器-DCDC开关式控制器规格书PDF中文资料

SC1175CSW属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由升特制造生产的SC1175CSWDC-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。

Description

The SC1175 is a versatile 2 phase, synchronous, voltage mode PWM controller that may be used in two distinct ways. First, the SC1175 is ideal for applications where point of use output power exceeds any single input power budget. Alternatively, the SC1175 can be used as a dual switcher. The SC1175 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 1.25V

◆ Industrial temperature range

◆ 20 pin SOIC or TSSOP package

Two Phase, Current Sharing Controller

◆ Flexible, same or separate VIN

◆ Programmable current sharing

◆ Combined current limit with fold-back

◆ 2 phases operating opposed for ripple reduction

◆ Thermal distribution via multi-phase output

Two Independent PWM Controllers

◆ Flexible, same or separate VIN

◆ Independent control for each channel

◆ Independent and separate current limit

◆ 2 phases operating opposed for ripple reduction (if same VIN used)

Applications

◆ Graphics cards

◆ DDR Memory

◆ Peripheral add-in card

◆ SSTL Termination

◆ Dual-Phase power supply

◆ Power supplies requiring two outputs