Infineon Technologies IR3827M

Description

The IR3827 SupIRBuckTM is an easy-to-use, fully integrated and highly efficient DC/DC regulator. The onboard PWM controller and MOSFETs make IR3827 a space-efficient solution, providing accurate power delivery for low output voltage applications.

IR3827 is a versatile regulator which offers programmable switching frequency and internally set current limit while operating in wide range of input and output voltage conditions.

The switching frequency is programmable from 300kHz to 1.2MHz for an optimum solution. It also features important protection functions, such as Pre-Bias startup, thermally compensated current limit, over voltage protection and thermal shutdown to give required system level security in the event of fault conditions.

Features

• Single input voltage range from 5V to 21V
• Wide input voltage range from 1.0V to 21V with external VCC bias voltage
• Output voltage range from 0.6V to 0.86% PVin
• Enhanced line/load regulation with feedforward
• Programmable switching frequency up to 1.2MHz
• Three user selectable soft-start time
• User selectable LDO output voltage
• Enable input with voltage monitoring capability
• Thermally compensated current limit with robust hiccup mode over current protection
• Synchronization to an external clock
• Enhanced Pre-bias start-up
• Precise reference voltage (0.6V+/-0.6%)
• Open-drain PGood indication
• Optional power up sequencing
• Integrated MOSFET drivers and bootstrap diode
• Thermal Shut Down
• Monotonic Start-Up
• Operating temp: -40°C < Tj < 125°C
• Package size: 4mm x 5mm PQFN
• Lead-free, Halogen-free and RoHS6 Compliant

Typical applications

• Distributed Point of Load Power Architectures
• Storage Applications
• Data Center Applications
• Computing Applications
• Set Top Box Applications

More information

• Datasheet
• IC product information