IR3891MTRPBF – 3A SupIRBuck™ Synchronous Buck Regulator with Integrated MOSFETs

Description

Technical specifications:

• Input voltage range: 4.5V to 21V
• Output current: Up to 3A
• Output voltage: 0.7V to 5V (adjustable)
• Switching frequency: 500kHz (fixed)
• Efficiency: Up to 95%
• Protection: UVLO, OVP, OCP, thermal shutdown
• Package: 5mm x 6mm PQFN
• Applications: Embedded systems, servers, telecom, storage devices, industrial control

Product features:

• Integrated MOSFETs: Reduces component count and PCB space
• 3A continuous output current: Supports mid-power loads with excellent efficiency
• Wide input voltage range: Operates from 4.5V to 21V input
• Adjustable output voltage: Supports 0.7V to 5V output range
• Fixed 500kHz switching frequency: Enables compact inductor and capacitor selection
• Protection features: Includes OVP, UVLO, OCP, and thermal shutdown