ADP3208C 7-Bit, Programmable, Dual-Phase, Mobile, CPU, Synchronous Buck Controller
●The ADP3208C is a highly efficient, multiphase, synchronous buck switching regulator controller. With its integrated drivers, the ADP3208C is optimized for converting the notebook battery voltage into the core supply voltage required by high performance Intel processors. An internal 7−bit DAC is used to read a VID code directly from the processor and to set the CPU core voltage to a value within the range of 0.3 V to 1.5 V. The phase relationship of the output signals ensures interleaved 2−phase operation.
The ADP3208C uses a multi−mode architecture run at a programmable switching frequency and optimized for efficiency depending on the output current requirement. The ADP3208C switches between single− and dual−phase operation to maximize efficiency with all load conditions. The chip includes a programmable load line slope function to adjust the output voltage as a function of the load current so that the core voltage is always optimally positioned for a load transient. The ADP3208C also provides accurate and reliable short−circuit protection, adjustable current limiting, and a delayed power−good output. The IC supports On−The−Fly (OTF) output voltage changes requested by the CPU.
The ADP3208C is specified over the extended commercial temperature range of −10°C to 100°C and is available in a 48−lead LFCSP.
●Features
■Single−Chip Solution
■Fully Compatible with the Intel® IMVP−6+ Specifications
■ Integrated MOSFET Drivers
■ Input Voltage Range of 3.3 V to 22 V
■Selectable 1− or 2−Phase Operation with Up to 1 MHz per Phase Switching Frequency
■ Guaranteed ±8 mV Worst−Case Differentially Sensed Core Voltage Error Overtemperature
■ Automatic Power−Saving Mode Maximizes Efficiency with Light Load During Deeper Sleep Operation
■Soft Transient Control Reduces Inrush Current and Audio Noise
■ Active Current Balancing Between Output Phases
■ Independent Current Limit and Load Line Setting
■Inputs for Additional Design Flexibility
■ Built−In Power−Good Blanking Supports Voltage Identification (VID) OTF Transients
■ 7−Bit, Digitally Programmable DAC with 0.3 V to 1.5 V Output
■ Short−Circuit Protection with Latchoff Delay
■ Clock Enable Output Delays the CPU Clock Until the Core Voltage is Stable
■ Output Load Current Monitor
■This is a Pb−Free Device
|
Programmable,Dual-Phase, Mobile, CPU,Synchronous Buck Controller |
|
|
Datasheet |
|
|
|
|
Please see the document for details |
|
|
|
|
|
|
|
|
|
|
|
English Chinese Chinese and English Japanese |
|
|
February, 2010 |
|
|
Rev. 0 |
|
|
ADP3208D/D |
|
|
1.2 MB |
- +1 Like
- Add to Favorites
Recommend
All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.
Integrated Circuits
Discrete Components
Connectors & Structural Components
Assembly UnitModules & Accessories
Power Supplies & Power Modules
Electronic Materials
Instrumentation & Test Kit
Electrical Tools & Materials
Mechatronics
Processing & Customization
