MP1583

NOT RECOMMENDED FOR NEW DESIGNS

3A, 23V, 385kHz Asynchronous Step-Down Converter

ALTERNATIVE PART

NRFND Datasheet

The MP9943 continues to be in production for existing customers. Please consider this alternative for new designs:

MP9943

High Efficiency 3A Peak, 36V, Synchronous Step Down Converter with Power Good

Features & Benefits

Wide 4V to 36V Continuous Operating Input Range
85mO/55mO Low RDS(ON) Internal Power MOSFETs
High-Efficiency Synchronous Mode Operation
410kHz Switching Frequency
Synchronizes from 200kHz to 2.2MHz External Clock
High Duty Cycle for Automotive Cold-crank
Internal Power-Save Mode
Internal Soft-Start
Power Good Indicator
Over Current Protection and Hiccup
Thermal Shutdown
Output Adjustable from 0.8V
Available in an QFN-8 (3mmx3mm) package

… and many more!

Description

The MP1583 is a step-down regulator with a built in internal Power MOSFET. It achieves 3A of continuous output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes cyclebycycle current limiting and thermal shutdown. An adjustable soft-start reduces the stress on the input source at startup. In shutdown mode the regulator draws 20μA of supply current. The MP1583 requires a minimum number of external components, providing a compact solution.

Features & Benefits

3A Output Current
Programmable Soft-Start
100mΩ Internal Power MOSFET Switch
Stable with Low ESR Output Ceramic Capacitors
Up to 95% Efficiency
20μA Shutdown Mode
Fixed 385kHz Frequency
Thermal Shutdown
Cycle-by-Cycle Over Current Protection
Wide 4.75V to 23V Operating Input Range
Output Adjustable from 1.22V to 21V
Under Voltage Lockout

Active Part Numbers:

MP1583DN-LF-P MP1583DN-LF-Z MP1583DP-LF MP1583DN MP1583DN_EMC-LF MP1583DN-LF MP1583DN-P MP1583DN-Z MP1583DP-LF-P MP1583DP-LF-Z MP1583DS MP1583DS-P MP1583DS-Z

Design Resources