A step-down converter, also known as a buck converter, is a type of DC-DC converter used to step down or reduce the voltage level of a DC power source to a lower voltage level, which is usually required for powering various electronic devices and components. It operates by controlling the on-off switching of its components to regulate the output voltage.
Part Number: MP1583
Function: 3A, 23V, 385KHz, Step-Down Converter
Package: DIP, SOIC 8 Pin Type
Manufacturer: MPS ( www.MonolithicPower.com )
Images:
Description
The MP1583 is a step -down regulator with a built-in internal Power MOSFET. It achieves 3A of continuo us output current over a wide input supply range with excellent load and line regulation. Current mo de operatio n provides f ast transien t response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limiting a nd thermal shutdown. An adjustab le soft-start reduces the stress on the input source at startup. In shutdown mode the regulator dr aws 20 μA of supply current. The MP158 3 requires a minimu m number of external components, providing a compact solution.
Features
• 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
Pinouts:
Applications:
• Distributed Power Systems
• Battery Chargers
• Pre-Regulator for Linear Regulator