SC1104XISTRT 数据手册 ( 数据表 ) - Semtech Corporation

Description
The SC1104A/B is a versatile voltage-mode PWM controller designed for use in single ended DC/DC power supply applications. A simple, fixed frequency high efficiency buck regulator can be implemented using the SC1104A/B with a minimum of external components. Internal level shift and drive circuitry eliminates the need for an expensive P-channel, high-side switch. The small device footprint allows for compact circuit design.

FEATUREs
◆ Up to +14V input, 300kHz operation (SC1104A)
◆ Up to +7V input, 600kHz operation (SC1104B)
◆ High efficiency (>90%)
◆ 1% Reference voltage accuracy
◆ Hiccup mode over current protection
◆ Robust output drive
◆ RDS(ON) Current sensing
◆ Industrial temperature range
◆ 8-Lead SOIC package. Pb-free package available, fully WEEE and RoHS compliant

APPLICATIONs
◆ Termination supplies
◆ Low cost microprocessor supplies
◆ Peripheral card supplies
◆ Industrial power supplies
◆ High density DC/DC conversion