DESCRIPTION
The IR3895 SupIRBuckTMis an easy‐to‐use, fully integrated and
highly efficient DC/DC regulator. The onboard PWM controller and
MOSFETs make IR3895 a space‐efficient solution, providing accurate
power delivery.
FEATURES
• Single 5V to 21V application
• Wide Input Voltage Range from 1.0V to 21V with external Vcc
• Output Voltage Range: 0.5V to 0.86×Vin
• Enhanced Line/Load Regulation with Feed‐Forward
• Programmable Switching Frequency up to 1.5MHz
• Internal Digital Soft‐Start/Soft‐Stop
• Enable input with Voltage Monitoring Capability
• Thermally Compensated Current Limit with robust hiccup mode over
current protection
• Smart internal LDO to improve light load and full load efficiency
• External Synchronization with Smooth Clocking
• Enhanced Pre‐Bias Start‐Up
• Precision Reference Voltage (0.5V+/‐0.5%) with margining
capability
• Vp for Tracking Applications (source/sink capability ±16A)
• Integrated MOSFET drivers and Bootstrap Diode
• Thermal Shut Down
• Programmable Power Good Output with tracking capability
• Monotonic Start‐Up
• Operating temp: ‐40oC < Tj < 125oC
• Small Size: 5mm x 6mm PQFN
• Lead‐free, Halogen‐free and RoHS Compliant
APPLICATIONS
• Netcom Applications
• Embedded Telecom Systems
• Server Applications
• Storage Applications
• Distributed Point of Load Power Architectures
