LX8554-00CDD中文资料Legacy Power Management数据手册Microchip规格书

描述 Description

Key Features:
• THREE-TERMINAL ADJUSTABLE OR FIXEDOUTPUT
• GUARANTEED £ ££ ££ 1V HEADROOM AT 5A
• OUTPUT CURRENT OF 5A
• FAST TRANSIENT RESPONSE
• 1% VOLTAGE REFERENCE INITIALACCURACY
• OUTPUT SHORT-CIRCUIT PROTECTION
• BUILT-IN THERMAL SHUTDOWN
• EVALUATION BOARD AVAILABLE:REQUEST LXE9001 EVALUATION KITThe LX8554 series ICs are very low dropout three-terminal positive regulators with 5A rated output current. This product family is ideally suited for Pentium ® Processor and Power PC TM applications requiring fast transient response. The LX8554 is guaranteed to have a dropout voltage under 1V at 5A load, making it ideal to provide well regulated outputs of 2.5V to 3.6V with input supply as low as 4.75V. Fixed versions are also available and are specified in the Available Options table below.Current limit is trimmed above 5.1A to ensure adequate output current and controlled short circuit current. On-chip thermal limiting provides protection against any combination of overload that would create excessive junction temperatures. The LX8554 series products are available in both through hole and surface mount versions of industry standard 3-pin TO-220 / TO-263 power packages. The LX8554 family of products are ideal for use in multiple processor applications where output voltage is jumper selected. The LX8554 ICs offer precision output as well as low supply operation (see application below). For higher current applications see the LX8584 series of products.