LX1670CD中文资料Legacy Power Management数据手册Microchip规格书

描述 Description

Key Features:
• 1% TOTAL OUTPUT ERROR
• POWER GOOD, UV, 0V COMPARATORS
• 0V COMPARATOR HAS SCR DRIVE
• UNDER-VOLTAGE LOCKOUT CAPABILITY
• 5-BIT INPUT FOR ADVANCED PENTIUM PROPROCESSOR APPLICATIONS (5 TH BIT IS FORAUTOMATIC GAIN AND OFFSET SCALING)
• IMPLEMENTS 1% DC ACCURATE CONTROLSYSTEM
• 14-PIN NARROW BODY SOIC PACKAGEThe LX1670 is a complete precision reference and voltage monitor circuit for the Intel Pentium ® Pro Processor and other high-end microprocessor supplies. It is designed for use in conjunction with the LX1660/1661 PWM controller. The LX1670 reads a 5-bit voltage identification (VID) code from the microprocessor and sets the output voltage reference to be used by the LX1660/61 controller. Together, they convert +5 or 12V input power to an adjustable output ranging from 1.8VDC to 3.5VDC in 100mV steps (50mV steps below 2.1V) with 1% DC system accuracy.