The IR3825 SupIRBuck® is an easy-to-use, fully integrated and highly efficient DC/DC regulator. The onboard PWM controller and MOSFETs make IR3825 a space-efficient solution, providing accurate power delivery.
IR3825 is a versatile regulator, operating with wide input and output voltage range, which offers programmable switching frequency from 300kHz to 1.5MHz, and three selectable current limits.
It 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.
Feature
- Single 5V to 21V application
- Wide Input Voltage Range from 1.0V to 21V with external Vcc
- Output Voltage Range: 0.6V to 0.86×Vin
- Enhanced Line/Load Regulation with Feed-Forward
- Programmable Switching Frequency up to 1.5MHz
- Internal Digital Soft-Start
- Three selectable current limits
- Enable input with Voltage Monitoring Capability
- Thermally Compensated Internal Over-Current Protection with Three selectable settings
- Enhanced Pre-Bias Start-Up
- Precision Reference Voltage (0.6V+/-0.6%)
- Integrated MOSFET drivers and Bootstrap Diode
- Thermal Shut Down
- Programmable Power Good Output
- Monotonic Start-Up
- Operating temp: -40oC < Tj < 125oC
- Small Size: PQFN 5 mm x 6 mm
- Lead-free, Halogen-free and RoHS Compliant
Applications
- Server Applications
- Netcom Applications
- Storage Applications
- Telecom Applications
- Distributed Point of Load Power Architectures
