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General Description

The MAX8653 dual-output, synchronous, step-down regulator contains low RDS(ON) integrated high-side MOSFET switches for ease of layout and achieving small footprints. Each output delivers up to 5A. The output voltage is adjustable down to 0.6V and operates from a 9V to 14V input voltage. The MAX8653 uses a proprietary high-bandwidth, constant-frequency, peak-voltage-mode control architecture and operates at an adjustable switching frequency between 300kHz to 1.5MHz. The architecture is suitable for use with a wide range of output capacitor technologies such as aluminum electrolytic, POSCAPs, and ceramic capacitors for flexible design. The simple compensation scheme achieves fast response under both line and load transients

Features

? Integrated 80mΩ RDS(ON), High-Side MOSFETs

? Adjustable Hiccup-Mode Short-Circuit Current Limit Protection

? ±1 Output Accuracy over Load, Line, and Temperature

? 9V to 14V Input Supply Range

? Adjustable Output Down to 0.6V

? Digital Soft-Start Reduces Inrush Supply Current

? 300kHz to 1.5MHz Adjustable Switching Frequency

? External Frequency Synchronization

? Compatible with Ceramic, Polymer, and

?? Electrolytic Capacitors

? 180° Out-of-Phase Operation

? Enable and POK for Each Output

? REFIN Feature for Tracking Applications

? 28-Lead 5mm x 5mm Thin QFN Package

Applications

?? Telecom

?? Network Equipment

?? Storage

?? Servers

?? DDR Memories

?? DSL

?? Set-Top Box

?? Cable Modem