IR3841WMPbF
SupIRBuck
Features
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TM
HIGHLY EFFICIENT
Description
The IR3841W SupIRBuckTM 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 IR3841W a space-efficient solution, providing accurate power delivery for low output voltage applications. IR3841W 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 250kHz 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.
INTEGRATED 8A SYNCHRONOUS BUCK REGULATOR
Greater than 96% Maximum Efficiency Wide Input Voltage Range 1.5V to 16V Wide Output Voltage Range 0.7V to 0.9*Vin Continuous 8A 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 -40oC to 125oC operating junction temperature Thermal Protection Pin compatible option for 4A,12A, and 14A devices 5mm x 6mm Power QFN Package, 0.9 mm height Lead-free, halogen-free and RoHS compliant Server Applications Storage Applications Embedded Telecom Systems
1.5V
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