Infineon Technologies OptiMOS™ IPOL DC-DC buck regulator

The IR388X OptiMOSTM IPOL is an easy-to-use, fully integrated DC-DC buck regulator. The onboard PWM controller and OptiMOS™ MOSFETs with integrated bootstrap diode make the IR388x a small footprint solution, providing high-efficient power delivery. Furthermore, it uses a fast Constant-ON-Time (COT) control scheme, which simplifies the design efforts and achieves fast control response.

Key features

• Infineon’s fast Constant-ON-Time engine with floor control
• Featuring latest Infineon MOSFETs (OptiMOS™ 5) for enhanced efficiency
• Thermally capable of up to 30 A in small 5 x 6 mm footprint
• High switching frequency (up to 2 MHz) suitable for high-density design

Additional features

• Wide input voltage range from 2.0 V to 17 V with an external VCC 
• Precision reference voltage
• Enhanced fast COT engine stable with ceramic output capacitors and no external compensation
• Optional forced continuous conduction mode and diode emulation for enhanced light load efficiency
• Programmable switching frequency from 600 kHz to 2 MHz
• Monotonic start-up with four selectable soft-start times & enhanced pre-bias start-up
• Thermally compensated internal over-current protection with four selectable settings
• Enable input with voltage monitoring capability & Power Good output
• Thermal shutdown
• Operating temperature: -40°C < Tj < 125°C
• Compact size for reduced PCB space requirements
• Lead-free, halogen-free and RoHS2 compliant

Applications

• Servers
• Enterprise Storage
• Netcom Router and Switches
• Telecom Base Stations
• Distributed PoL

Available tools

EVAL_3889_1VOUT

• Evaluation board for IR3889M
• Order Code:  EVAL38891VOUTTOBO1 

EVAL_3889_3.3VOUT

• Evaluation board for IR3889M
• Order Code: EVAL388933VOUTTOBO1