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General Description

The RT8012A is a dual PWM, current mode, stepdown converter. Its input voltage range is from 2.6V to 5.5V and has a constant 1.2MHz switching frequency, allowing the use of tiny, low cost capacitors and inductors 2mm or less in height. Each output voltage is adjustable from 0.8V to 5V. Internal power switches with low on-resistance of the dual step-down regulators increase efficiency and eliminate the need for external Schottky diodes.

Features

● High Efficiency : Up to 95

● 1.2MHZ Constant Switching Frequency

● 1A and 1.5A Load Current on Each Channel Respectively

● Low RDS(ON) Internal Switches

● No Schottky Diode Required

● 0.8V Reference Allows Low Output Voltage

● Low Dropout Operation : 100 Duty Cycle

● Internally Compensated

● < 2μA Shutdown Current

● Power Good Output Voltage Monitor

● Internal Soft-Start

● Easy Power Sequence Control

● Over temperature Protection

● Short Circuit Protection

● Thermally Enhanced 16-Lead WQFN Package

● RoHS Compliant and 100 Lead (Pb)-Free

Applications

● Portable Instruments

● Microprocessors and DSP Core Supplies

● Cellular Phones

● Wireless and DSL Modems

● PC Cards

● Digital Cameras