CS51313 ,Synchronous CPU Buck Controller Capable of Implementing Multiple Linear RegulatorsELECTRICAL CHARACTERISTICS (0°C < T < 70°C; 0°C < T < 125°C; 9.0 V < V < 14 V; A J CC2.0 V DAC Co ..
CS51313 ,Synchronous CPU Buck Controller Capable of Implementing Multiple Linear RegulatorsFeatures• Synchronous Switching Regulator Controller for CPU VCORE• Dual N−Channel MOSFET Synchrono ..
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CS51313
Synchronous CPU Buck Controller Capable of Implementing Multiple Linear Regulators
CS51313
Synchronous CPU
Buck Controller Capable
of Implementing Multiple
Linear Regulators
The CS51313 is a synchronous dual NFET Buck Regulator
Controller. It is designed to power the core logic of the latest high
performance CPUs. It uses the V2 ™ control method to achieve the
fastest possible transient response and best overall regulation. It
incorporates many additional features required to ensure the proper
operation and protection of the CPU and Power system. The CS51313
provides the industry’s most highly integrated solution, minimizing
external component count, total solution size, and cost.
The CS51313 is specifically designed to power Intel’s Pentium® II
processor and includes the following features: 5−bit DAC with 1.2%
tolerance, Power Good output, overcurrent hiccup mode protection,
overvoltage protection, VCC monitor, Soft Start, adaptive voltage
positioning and adaptive FET non−overlap time. A precision reference
trimmed to 1.0% is also externally available for use by
regulators. The CS51313 will operate over an 8.4 V to 14 V range andis available in 16 lead narrow body surface mount package.
Features• Synchronous Switching Regulator Controller for CPU VCORE Dual N−Channel MOSFET Synchronous Buck DesignV2 Control Topology 200 ns Transient Loop Response 5−Bit DAC with 1.2% Tolerance Hiccup Mode Overcurrent Protection 40 ns Gate Rise and Fall Times (3.3 nF Load) 65 ns Adaptive FET Non−Overlap Time Adaptive Voltage Positioning Power Good Output Monitors Regulator Output VCC Monitor Provides Undervoltage Lockout OVP Output Monitors Regulator Output Enable Through Use of the COMP Pin +1.23 V Reference V oltage Available Externally
