Infineon Technologies IR3892

Description

The IR3892 SupIRBuck® is an easy-to-use, fully integrated and highly efficient DC/DC regulator. The onboard PWM controller and MOSFETs make IR3892 a space-efficient solution, providing accurate powerdelivery for low output voltage.IR3892 is a versatile regulator which offers programmability of switching frequency and a fixed current limit while operating in wide input and output voltage range.The switching frequency is programmable from 300kHz to 1.0MHz for an optimum solution. It also features important protection functions, such asOver Voltage Protection (OVP), Pre-Bias startup, hiccup current limit and thermal shutdown to give required system level security in the event of faultconditions.

Features

• Single 5V to 21V application
• Wide Input Voltage Range from 1V to 21V withexternal Vcc
• Output Voltage Range: 0.5V to 0.86*PVin
• Dual output, 6A/Phase
• Enhanced Line/Load Regulation with Feed-Forward
• Programmable Switching Frequency up to 1.0MHz
• Internal Digital Soft-Start
• Enable input with Voltage Monitoring Capability
• Thermally compensated current limit and HiccupMode Over Current Protection
• External synchronization with Smooth Clocking
• Precision Reference Voltage (0.5V +/-1%)
• Seq pin for Sequencing Applications
• Integrated MOSFETs, drivers and Bootstrap diode
• Thermal Shut Down
• Open Feedback Line Protection
• Over Voltage Protection
• Interleaved Phases to reduce Input Capacitors
• Monotonic Start-Up
• Operating Junction Temp: -40oC<Tj<125oC
• Small Size 5mm x 6mm PQFN
• Lead-free, Halogen-free, and RoHS Compliant

Typical applications

• Distributed Point of Load Power Architectures
• Embedded telecom Systems
• Storage Applications
• General DC-DC Converters
• Netcom Applications
• Computing Peripheral Voltage regulators
• Sever Applications
• Set Top Box Applications

More information

• Datasheet
• IC product information