onsemi NCP81245
The NCP81245 (3+3+1 phase) three−output buck solution is optimized for Intel’s IMVP8 CPUs. The two multi−phase rail control systems are based on Dual−Edge pulse−width modulation (PWM) combined with DCR current sensing providing an ultra fast initial response to dynamic load events and reduced system cost. The single−phase rail makes use of ON Semiconductor’s patented high performance RPM operation.| Part No. | NCP81245 |
|---|---|
| Datasheet | NCP81245 Download |
| Manufacturer |  onsemi |
| Description | Three-Rail Output Controller |
| Buy | Stock & Price |
APPLICATIONS
RPM control maximizes transient response while allowing for smooth transitions between discontinuous−frequency−scaling operation and continuous−mode full−power operation. The NCP81245 has an ultra−low offset current monitor amplifier with programmable offset compensation for high−accuracy current monitoring. Three−Phase Rails Feature● Dual Edge Modulation for Fastest Initial Response to Transient Loading
● High Performance Operational Error Amplifier
● Digital Soft Start Ramp
● Dynamic Reference Injection
● Accurate Total Summing Current Amplifier
● Dual High Impedance Differential Voltage and Total Current Sense Amplifiers
● Phase−to−Phase Dynamic Current Balancing
● True Differential Current Balancing Sense Amplifiers for Each Phase
● Adaptive Voltage Positioning (AVP)
● Switching Frequency Range of 300 kHz − 750 kHz
● Vin range 4.5 V to 20 V
● Startup into Pre−Charged Loads While Avoiding False OVP
● UltraSonic Operation
● These Devices are Pb−Free and are RoHS Complia...
