MP1584

NOT RECOMMENDED FOR NEW DESIGNS

3A, 1.5MHz, 28V Step-Down Converter

ALTERNATIVE PART

NRFND Datasheet

The MP2338GTL continues to be in production for existing customers. Please consider this alternative for new designs:

MP2338GTL

High-Efficiency, 28V, 3A, 450kHz, Synchronous Step-Down Converter In SOT583 Package

Features & Benefits

Wide 4.5V to 28V Operating Input Range
Wide 0.5V to 16V VOUT
±1.5% Internal Reference Accuracy Over-Temperature
115mΩ/55mΩ Low RDS(ON) Internal Power MOSFETs
160μA Quiescent Current
>90% Efficiency for 24V to 5V/3A Condition
Power Save Mode at Light Load
Fast Load Transient Response
450kHz Switching Frequency
tON Extension to Improve Dropout
Configurable Soft-Start Time
Power Good Indication
Over-Current Protection (OCP) with HiccupMode
Thermal Shutdown Protection
Available in an SOT583 Package

… and many more!

Description

The MP1584 is a high frequency step-down switching regulator with an integrated internal high-side high voltage power MOSFET. It provides 3A output with current mode control for fast loop response and easy compensation. The wide 4.5V to 28V input range accommodates a variety of step-down applications, including those in an automotive input environment. A 100µA operational quiescent current allows use in battery-powered applications. High power conversion efficiency over a wide load range is achieved by scaling down the switching frequency at light load condition to reduce the switching and gate driving losses. The frequency foldback helps prevent inductor current runaway during startup and thermal shutdown provides reliable, fault tolerant operation. By switching at 1.5MHz, the MP1584 is able to prevent EMI (Electromagnetic Interference) noise problems, such as those found in AM radio and ADSL applications. The MP1584 is available in a thermally enhanced SOIC8E package.