Monolithic Power Systems MPQ2459-AEC1

Description

The MPQ2459 is a monolithic, step-down, switch-mode converter with a built-in power MOSFET. It achieves a 0.5A peak output current over a wide input-supply range with excellent load and line regulation. Current mode operation provides a fast transient response and eases loop stabilization. Fault protections include cyclebycycle current limiting and thermal shutdown.

The MPQ2459 requires a minimal number of readily-available, standard, external components. The MPQ2459 is available in a TSOT23-6 package.

Features

• • Guaranteed Industrial/Automotive Temp Range Limits.
• • 0.5A Peak Output Current
• • 1Ω Internal Power MOSFET
• • Stable with Low-ESR Ceramic Output Capacitors
• • Up to 90% Efficiency
• • 0.1μA Shutdown Mode
• • Fixed 480kHz Frequency
• • Thermal Shutdown
• • Cycle-by-Cycle Over-Current Protection
• • Wide 4.5V-to-55V Input Operating Range
• • Output Adjustable from 0.81V to 0.95×VIN
• • Available in a TSOT23-6 Package
• • Available in AEC-Q100 Grade 1

Typical applications

• Distributed Power Systems
• WLED Drivers
• Pre-Regulators for Linear Regulators
• Power Meters
• Battery Chargers

More information

• Datasheet
• IC product information