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CS51312ON ?N/a123avaiSynchronous CPU Buck Controller for 12V Only Applications
CS51312ONN/a9avaiSynchronous CPU Buck Controller for 12V Only Applications
CS51312CSN/a950avaiSynchronous CPU Buck Controller for 12V Only Applications


CS51312 ,Synchronous CPU Buck Controller for 12V Only ApplicationsFeatures• Synchronous Switching Regulator Controller for CPU VCORE• Dual N−Channel MOSFET Synchrono ..
CS51312 ,Synchronous CPU Buck Controller for 12V Only ApplicationsMAXIMUM RATINGS Pin Name Pin Symbol V V I IMAX MIN SOURCE SINKIC Bias and Low Side Driver V 16−0.3 ..
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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CS51411E ,1.5A, 260 kHz AND 520 kHz, LOW VOLTAGE BUCK REGULATORS WITH EXTERNAL BIAS OR SYNCHRONIZATION CAPABILITYELECTRICAL CHARACTERISTICS (continued) (–40°C < T < 125°C (CS51411E/2E/3E/4E); –40°C < T < 85°C (CS ..
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CS51312
Synchronous CPU Buck Controller for 12V Only Applications
CS51312
Synchronous CPU
Buck Controller for
12 V Only Applications
The CS51312 is a synchronous dual NFET Buck Regulator
Controller. It is designed to power the core logic of the latest high
performance CPUs and ASICs from a single 12 V input. It uses the2 ™ 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 CS51312 provides the industry’s most highly
integrated solution, minimizing external component count, total
solution size, and cost.
The CS51312 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, adaptive FET non−overlap time, and remote sense. The
CS51312 will operate over a 9.0 V to 20 V (VCC2) range using either
single or dual input voltage and is 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 5.0 V/12 V or 12 V−Only Operation VCC Monitor Provides Undervoltage Lockout OVP Output Monitors Regulator Output Multifunctional COMP Pin Provides ENABLE, Soft Start, and
Hiccup Timing in Addition to Control Loop Compensation
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