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The RT8058A 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 1.2MHz 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. The low on resistance internal MOSFET can achieve high efficiency without the need of external schottky diodes in wide operating ranges and the output voltage is adjustable from 0.6V to 5V that can provide up to 2A load current. The RT8058A operates at 100% duty cycle for low dropout operation that extends battery life in portable devices.The RT8058A is available in a WDFN-10L 3x3 package.
0.6V Reference Allows Low Output Voltage
Low Dropout Operation : 100% Duty Cycle
2A Load Current
< 2μA Shutdown Current
Up to 95% Efficiency
No Schottky Diode Required
1.2MHz Constant Switching Frequency
Low RDS(ON) Internal Switches
Internally Compensated
Internal Soft-Start
Over temperature Protection
Short Circuit Protection
Small 10-Lead WDFN Package
RoHS Compliant and Halogen Free
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