General Description

The RT8058 is a current mode PWM step-down converter. The chip is ideal for fixed frequency and low ripple applications over full range of load conditions. Its input voltage range is from 2.6V to 5.5V with a constant 1MHz switching frequency that allows it to adopt tiny, low cost capacitors and inductors with 2mm or less in height making it ideal for single-cell Li-lon/polymer battery applications.

Features

● 0.6V Reference Allows Low Output Voltage
● Low Dropout Operation : 100% Duty Cycle
● 2A Load Current
● < 2uA Shutdown Current
● Up to 95%Efficiency
● No Schottky Diode Required
● 1MHZ Constant Switching Frequency
● Low RDS(ON) Internal Switches
● Internally Compensated
● Internal Soft-Start
● Over temperature Protection
● Short Circuit Protection
● Small 16-Lead WQFN Package
● RoHS Compliant and 100% Lead (Pb)-Free

Applications

● Portable Instruments
● Microprocessors and DSP Core supplies
● Cellular Telephones
● Wireless and DSL Modems
● Digital Cameras
● PC Cards