IR3842WMPBF Datasheet | International Rectifier

Features - Greater than 95% Maximum Efficiency - Wide Input Voltage Range 1.5V to 16V - Wide Output Voltage Range 0.7V to 0.9- Vin - Continuous 4A Load Capability - Integrated Bootstrap-diode - High Bandwidth E/A for excellent transient performance - Programmable Switching Frequency up to 1.5MHz - Programmable Over Current Protection - PGood output - Hiccup Current Limit - Precision Reference Voltage (0.7V, +/-1%) - Programmable Soft-Start - Enable Input with Voltage Monitoring Capability - Enhanced Pre-Bias Start-up - Seq input for Tracking applications - -40o C to 125o C operating junction temperature - Thermal Protection - Pin patible option for 8A and 12A devices - 5mm x 6mm Power QFN Package, 0.9 mm height - Lead-free, halogen-free and Ro HS pliant Description The IR3842W Sup IRBuck TM is an easy-to-use, fully integrated and highly efficient DC/DC synchronous Buck regulator. The MOSFETs copackaged with the on-chip PWM controller make IR3842W a space-efficient solution, providing accurate power delivery for low output voltage applications. IR3842W is a versatile regulator which offers programmability of start up time, switching frequency and current limit while operating in wide input and output voltage range. The switching frequency is programmable from 250k Hz to 1.5MHz for an optimum solution. It also features important protection functions, such as Pre-Bias startup, hiccup current limit and thermal shutdown to give required system level security in the event of fault conditions. Applications - Server Applications - Storage Applications - Embedded Tele Systems - Distributed Point of Load Power Architectures - Net Applications - puting Peripheral Voltage Regulators - General DC-DC Converters 1.5V <Vin<16V 4.5V <Vcc<5.5V PGood Seq Enable Vcc PGood Rt SS/ SD...