MP8773

NOT RECOMMENDED FOR NEW DESIGNS

Monolithic 3A, 23V, 500kHz Synchronous Step-down Converter

ALTERNATIVE PART

NRFND Datasheet

MP8773 continues to be in production for existing customers. Please consider this alternative for new designs:

MP2315

High Efficiency 3A, 24V, 500kHz, with AAM (light load mode), Synchronous Step Down Converter in TSOT23-8

Features & Benefits

Wide 4.5V to 24V Operating Input Range
3A Load Current
90mO/40mO Low Rds(on) Internal Power MOSFETs
Low Quiescent Current
High Efficiency Synchronous Mode Operation
Fixed 500kHz Switching Frequency
Frequency Sync from 200kHz to 2MHz External Clock
AAM Power Save Mode
Internal Soft Start
OCP Protection and Hiccup
Thermal Shutdown
Output Adjustable from 0.8V
Available in an 8-pin TSOT-23 package

… and many more!

Description

The MP8773 is a monolithic high frequency synchronous rectified step-down switch mode converter with built in internal power MOSFETs. It offers a very compact solution to achieve more than 3A output current over a wide input supply range with excellent load and line regulation. The integrated low side FET achieves 19mO for high efficiency. The MP8773 operates at high efficiency over a wide output current load range. Current mode operation provides fast transient response and eases loop stabilization. The device also uses proprietary AAM operation for high efficiency. Full protection features include OCP and thermal shut down. The MP8773 is available in space saving 3mm x 4mm 14-pin QFN and 8 pin SOIC with exposed pad packages.

Features & Benefits

Wide 4.5 to 23V Operating Input Range
3A Output Current
19mO LS FET
Proprietary Switching Loss Reduction Technique
Fixed 500kHz Switching Frequency
Internal Compensation
OCP Protection and Thermal Shutdown
Output Adjustable from 0.8V
Available in 14-pin QFN3x4 and SOIC8E packages

Active Part Numbers:

MP8773EL–Z MP8773EL–P MP8773EL–LF–Z MP8773EL–LF–P MP8773EN–Z MP8773EN–P

Evaluation Tools

MEV8773EN-00A Evaluation Kit onolithic 3A, 23V, 500kHz Synchronous Step-down Converter Evaluation Board

The EV8773EN-00A is an evaluation board for the MP8773EN, a monolithic synchronous buck regulator.

This EV board can deliver 3A continuous load current over an operating input voltage 4.5V to 23V. High efficiency power conversion is achieved through the use of synchronous rectification techniques.

Current mode control is implemented, which provides fast transient response and cycle-by-cycle current limiting.

This EV board can be turned on or shut down via a remote ON/OFF input that is referenced to ground. This input is compatible with popular logic devices.

$25.00
+ tax

Design Resources

Symbol, Footprint & 3D Model

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