High Speed, Accuracy, and Efficiency IMVP-II/Coppermine/AMD Compatible Voltage-Positioned Output Low Output-Capacitor Count (6) Fast-Response Quick-PWM Architecture 7V to 24V Input Voltage Range 0.925V to 2.0V Output Voltage Range (Coppermine/AMD, 5-Bit DAC) 0.6V to 1.75V Output Voltage Range (IMVP-II, 5-Bit DAC) 22A Load-Current Capability 300kHz Switching Frequency Power Good (PGOOD) Indicator 28-Pin QSOP Package Low-Profile Components Fully Assembled and Tested
- CPU Core Supplies
- Docking Stations
- Notebook Computers (IMVP-II/Coppermine)
- Single-Stage (BATT to VCORE) Converters
- Two-Stage (+5V to VCORE) Converters
The MAX1813 evaluation kit (EV kit) demonstrates the high-power, dynamically adjustable notebook CPU application circuit. This DC-DC converter steps down high-voltage batteries and/or AC adapters, generating a precision, low-voltage CPU core VCC rail. The MAX1813 EV kit meets the Intel® mobile CPU's transient voltage specification (IMVP-II/Coppermine), using voltage positioning to minimize the output-capacitor requirements. The MAX1813 has an internal multiplexer which accepts three unique 5-bit VID DAC codes corresponding to performance, battery, and suspend modes. Precision slew-rate control provides "just-in-time" arrival at the new DAC setting, minimizing surge currents to and from the battery.
This fully assembled and tested circuit board provides a digitally adjustable 0.6V to 2.0V output from a 7V to 24V battery input range. It delivers up to 22A output current. The EV kit operates at 300kHz switching frequency and has superior line- and load-transient response.