IR38263MTRPBF

This family of OptiMOS™ IPOL devices offers easy-to-use, fully integrated and highly efficient DC/DC regulators with PVID and I2C/PMBus™ interface. The on-chip PWM controller and co-packaged low duty cycle optimized MOSFETs make these devices a space-efficient solution, providing accurate power delivery for low output voltage and high current applications that require a parallel VID interface. These versatile devices offer programmability of switching frequency, output voltage, and fault/warning thresholds and fault responses while operating over a wide input range. Thus, they offer flexibility as well as system level security in event of fault conditions. The switching frequency is programmable from 150 kHz to 1.5 MHz for an optimum solution. The on-chip sensors and ADC along with the PVID and PMBus™ interfaces make it easy to monitor and report input voltage, output voltage, output current and temperature.

Applications

• Intel VR13 and VR12.5 based systems
• Servers and High End Desktop CPU VRs for noncore applications
• Telecom and storage applications

Key features

• Internal LDO allows single 16V operation
• Output Voltage Range: 0.5V to 0.875*P Vin
• 0.5% accurate Reference Voltage
• Enhanced line/load regulation with Feedforward
• Frequency programmable by PMBus™ up to 1.5 MHz Enable input with Voltage Monitoring Capability
• Remote Sense Amplifier with True Differential Voltage Sensing
• 3 pins (PVID) to program output voltage
• Fast mode I2C and 400 kHz PMBus™ interface for programming, sequencing and margining output voltage, and for monitoring input voltage, output voltage, output current and temperature. PMBus™ configurable fault thresholds for input UVLO, output OVP, OCP and thermal shutdown. Thermally compensated pulse-by-pulse current limit and Hiccup Mode Over Current Protection Dedicated output voltage sensing for power good indication and overvoltage protection which remains active even when Enable is low.
• Enhanced Pre-Bias Start up
• Integrated MOSFET drivers and Bootstrap diode
• Operating junction temp: -40°C < Tj < 125°C
• Thermal Shut Down
• Post Package trimmed rising edge dead-time
• PMBus™ Programmable Power Good Output
• Small Size 5 mmx 7mm PQFN
• Pb-Free (RoHS Compliant) External resistor allows setting up to 16 PMBus™ addresses