DCDC Converter OptiMOS IPOL Single-input Voltage, 30 A Buck Regulators with PVID IR38263 FEATURES DESCRIPTION Internal LDO allows single 16 V operation This family of OptiMOS IPOL devices offers easy-to-use, Output Voltage Range: 0.5V to 0.875*PVin fully integrated and highly efficient DC/DC regulators with 0.5% accurate Reference Voltage PVID and I2C/PMBus interface. The on-chip PWM Enhanced line/load regulation with Feedforward controller and co-packaged low duty cycle optimized Frequency programmable by PMBus up to 1.5 MOSFETs make these devices a space-efficient solution, MHz providing accurate power delivery for low output voltage Enable input with Voltage Monitoring Capability and high current applications that require a parallel VID Remote Sense Amplifier with True Differential interface. Voltage Sensing 3 pins (PVID) to program output voltage These versatile devices offer programmability of switching Fast mode I2C and 400 kHz PMBus interface for frequency, output voltage, and fault/warning thresholds programming, sequencing and margining output and fault responses while operating over a wide input voltage, and for monitoring input voltage, output range. Thus, they offer flexibility as well as system level voltage, output current and temperature. security in event of fault conditions. PMBus configurable fault thresholds for input UVLO, output OVP, OCP and thermal shutdown. Thermally compensated pulse-by-pulse current The switching frequency is programmable from 150 kHz to limit and Hiccup Mode Over Current Protection 1.5 MHz for an optimum solution. Dedicated output voltage sensing for power good indication and overvoltage protection which The on-chip sensors and ADC along with the PVID and remains active even when Enable is low. PMBus interfaces make it easy to monitor and report Enhanced Pre-Bias Start up input voltage, output voltage, output current and Integrated MOSFET drivers and Bootstrap diode o o temperature. Operating junction temp: -40 C<Tj<125 C Thermal Shut Down Post Package trimmed rising edge dead-time APPLICATIONS PMBus Programmable Power Good Output Intel VR13 and VR12.5 based systems Small Size 5 mmx 7mm PQFN Pb-Free (RoHS Compliant) Servers and High End Desktop CPU VRs for non- External resistor allows setting up to 16 PMBus core applications addresses Telecom and storage applications BASIC APPLICATION For applications in which Pvin>14V, a 1 ohm resistor is required in series with the boot capacitor. 5.5V <Vin<16V Optional placeholder for boot resistor. Default should be 0 ohm For PVin >14V, a 1 ohm resistor is P1V8 Enable Vin PVin required Boot Vo Vcc/ SW LDO out Vsns PGood RS+ PGood RS- VIDSEL0 RSo 3 bit VIDSEL1 Fb PVID VIDSEL2 Comp ADDR PGnd LGnd Placeholder for capacitor Figure 1: Typical application circuit 1 Rev 3.5 Jun 7, 2019 i2C/ SCL PMBus lines SDA pull up SAlert to 3.3V IR38263 PIN DIAGRAM Figure 2: IR38263 Package Top View 5mm X 7mm PQFN ORDERING INFORMATION Tape and Reel Description Package Part Number Qty PQFN 4000 IR38263MTRPbF 30A Buck Regulator with PVID and PMBus for PVNN 2 Rev 3.5 Jun 7, 2019