CS5172数据手册ONSEMI中文资料规格书

描述 Description

The CS5171/2/3/4 products are 280 kHz/560 kHz switching regulators with a high efficiency, 1.5 A integrated switch. These parts operate over a wide input voltage range, from 2.7 V to 30 V. The flexibility of the design of the Boost Regulator allows the chips to operate in most power supply configurations, including boost, flyback, forward, inverting and SEPIC. The ICs utilize current mode architecture, which allows excellent load and line regulation, as well as a practical means for limiting current. Combining high frequency operation with a highly integrated regulator circuit results in an extremely compact power supply solution. The circuit design includes provisions for features such as frequency synchronization, shutdown, and feedback controls for either positive or negative voltage regulation. These parts are pin-to-pin compatible with LT1372 / 1373.

特性 Features

• Wide Input Range: 2.7V to 30V
• Ability to use with various input supply types
• High Frequency Operation
• Allows for Small Components
• Minimum External Components
• Small PCB size / High power density
• Easy External Synchronization
• Synchronize frequency to reduce noise in the system
• Built-in Overcurrent Protection
• Protection Feature
• Frequency Foldback
• Reduces Component Stress During an Overcurrent Condition
• Thermal Shutdown with Hysteresis
• Protection feature
• Integrated Power Switch: 1.5A Guaranteed
• Reduced size / High power density
• Pin-to-Pin Compatible with LT1372 / 1373
• Easy to replace Linear Tech product
• Wide Ambient Temperature Range-Industrial Grade: -40C to 85C-Commercial Grade: 0C to 70C
• Guaranteed performance over wide temp range
• Shut Down Current: 50uA Maximum
• Low power state for battery powered applications

应用 Application

• DC-DC Boost
• Multiple Output Flyback Supplies
• Inverting Supplies
• CCFL Backlight Driver