Product Summary

The MP1593DN is a step-down regulator with an internal Power MOSFET. The MP1593DN 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 cycle-by-cycle 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 MP1593DN requires a minimum number of readily available external components, providing a compact solution. The applications of the MP1593DN are: Distributed Power Systems, Battery Chargers, Pre-Regulator for Linear Regulators, Flat Panel TVs, Set-Top Boxes, Cigarette Lighter Powered Devices, DVD/PVR Devices.

Parametrics

MP1593DN absolute maximum ratings: (1)Supply Voltage VIN: -0.3V to +30V; (2)Switch Voltage VSW: -0.5V to VIN + 0.3V; (3)Boost Voltage VBS: VSW - 0.3V to VSW + 6V; (4)All Other Pins: -0.3V to +6V; (5)Junction Temperature: 150℃; (6)Lead Temperature: 260℃; (7)Storage Temperature: -65℃ to +150℃.

Features

MP1593DN features: (1)3A Output Current; (2)Programmable Soft-Start; (3)100mΩ Internal Power MOSFET Switch; (4)Stable with Low ESR Output Ceramic Capacitors; (5)Up to 95% Efficiency; (6)20μA Shutdown Mode; (7)Fixed 385KHz Frequency; (8)Thermal Shutdown; (9)Cycle-by-Cycle Over Current Protection; (10)Wide 4.75V to 28V Operating Input Range; (11)Output Adjustable from 1.22V; (12)Under-Voltage Lockout; (13)Available in 8-Pin SOIC Package.

Diagrams

MP1593DN block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
MP1593DN-LF
MP1593DN-LF

Monolithic Power Systems (MPS)

Switching Converters, Regulators & Controllers 3A 28V 385kHz Step-Down Converter

Data Sheet

0-1: $1.61
1-25: $1.50
25-100: $1.39
100-500: $1.27
MP1593DN-LF-Z
MP1593DN-LF-Z

Monolithic Power Systems (MPS)

Switching Converters, Regulators & Controllers 3A 28V 385kHz Step-Down Converter

Data Sheet

0-1750: $1.15
1750-2000: $1.10
2000-2500: $1.10
2500-5000: $1.07