IR3898 - International Rectifier

IR3898 6A Highly Integrated SupIRBuck Synchronous Buck Regulator

6A Highly Integrated SupIRBuckTM Single-Input Vo- l1ta-ge, Synchronous Buck Regulator PD-97662 IR3898 FEATURES  Single 5V to 21V application  Wide Input Voltage Range from 1.0V to 21V with external Vcc  Output Voltage Range: 0.5V to 0.86× Vin  Enhanced Line/Load Regulation with Feed-Forward  Programmable Switching Frequency up to 1.5MHz  Internal Dig.

Features

 Single 5V to 21V application
 Wide Input Voltage Range from 1.0V to 21V with external Vcc
 Output Voltage Range: 0.5V to 0.86× Vin
 Enhanced Line/Load Regulation with Feed-Forward
 Programmable Switching Frequency up to 1.5MHz
 Internal Digital Soft-Start/Soft-Stop
 Enable input with Voltage Monitoring Capability
 Thermally Compensated Current Limit with robust hiccup mode over current protection
 Smart Internal LDO to improve light load and full load efficiency
 External Synchronization with Smooth Clocking
 Enhanced Pre-Bias Start-Up
 Precision Reference Voltage (0.5V+/-0.5%) wi.