IR3883MTRPBF

IR3883MTRPBF is a 800KHz 3A EaSy SupIRBuck® synchronous buck regulator. This IR3883 SupIRBuck® is an easy-to-use, fully integrated and highly efficient monolithic DC/DC regulator. The on-chip PWM controller and MOSFETs make IR3883 a space-efficient solution, providing accurate power delivery. The IR3883 employs an Enhanced Stability (EaSy) engine that makes it stable with ceramic capacitors without compensation. IR3883 can operate in Forced Continuous Conduction Mode (FCCM) or can enter Diode Emulation mode during light loads to save power. With ultra-light loads, IR3883 can enter a low quiescent current mode making it ideal for Standby power supplies. Typical application includes server and computing, storage applications, communications infrastructure, general DC-DC converters and distributed point of load power architectures.

• Wide input voltage range (2.5V-14V) with an external Vcc
• Single input voltage range (4.5V to 14V)
• 10µA supply current at shutdown
• EaSy SupIRBuck® engine stable with ceramic capacitors and no external compensation
• Enhanced light load efficiency with reduced switching frequency and diode emulation
• Forced continuous conduction mode option and internal soft-start, enable input, pre-bias start up
• Thermally compensated peak over-current protection with three selectable levels
• Thermal shut down and power good output
• Output voltage range from 500mV to 5V and precision reference voltage of (0.5V+/-0.6%)
• 16 pin PQFN EP package