800kHz 3A Integrated POL Voltage Regulator
The IR3883 IR MOSFET™ IPOL 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 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.
It features important protection functions, such as Pre-bias startup, internal soft-start, hiccup overcurrent protection and thermal shutdown to give required system level security in the event of fault conditions.
Summary of Features
The IR3883 IR MOSFET™ IPOL is an easy-to-use, fully integrated and highly efficient monolithic DC/DC regulator.
•Wide Input Voltage Range (2.5V-14V) with an external Vcc
•Single Input Voltage Range (4.5V to 14V)
•Continuous 3A Load Capability
•800kHz Switching Frequency
•10uA Supply Current at Shutdown
•Enhanced Stability Engine with Ceramic Capacitors and no External Compensation
•Enhanced Light Load Efficiency with Reduced Switching Frequency and Diode Emulation
•Forced Continuous Conduction Mode Option
•Thermally Compensated Peak Over-Current Protection with three selectable levels
•Pre-bias Start Up
•Thermal Shut Down
•Power Good Output
•Precision Reference Voltage (0.5V+/-0.6%)
•Small Size 3mmx3mm QFN
•Lead-free, Halogen-free and RoHS6 Compliant
•Server and Computing
•General DC-DC Converters
•Distributed Point of Load Power Architectures