Description

The ADP3208CJCPZ is a highly efficient, multiphase, synchronous buck switching regulator controller. It is designed for converting the notebook battery voltage into the core supply voltage required by high-performance Intel processors. It features an integrated 7-bit DAC to read a VID code directly from the processor and set the CPU core voltage within the range of 0.3 V to 1.5 V. The ADP3208CJCPZ ensures interleaved 2-phase operation for optimal performance.

Specifications and 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 over temperature
• 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) on-the-fly transients
• 7-bit, digitally programmable DAC with 0.3 V to 1.5 V output
• Short-circuit protection with latch-off delay
• Clock enable output delays the CPU clock until the core voltage is stable
• Output load current monitor
• 48-lead LFCSP

Application Scenarios

The ADP3208CJCPZ is commonly used in notebook power supplies for next-generation Intel processors.

Comparison

• Highly efficient
• Multiphase operation for optimal performance
• Integrated MOSFET drivers
• Wide input voltage range
• Selectable 1- or 2-phase operation
• Automatic power-saving mode for maximum efficiency
• Soft transient control for reduced inrush current and audio noise
• Active current balancing between output phases
• Independent current limit and load line setting inputs
• Built-in power-good blanking for voltage identification
• Digitally programmable DAC for precise voltage output
• Short-circuit protection with latch-off delay
• Clock enable output for stable CPU clock
• Output load current monitor

None observed.