MP1584EN Buck Converter IC

The MP1584EN from Monolithic Power Systems is a high-efficiency, high-frequency step-down (buck) DC-DC converter designed to deliver up to 3A output current with excellent efficiency.
Operating at a fixed switching frequency of 1.5 MHz, it allows the use of small external components, making it ideal for compact designs. The MP1584EN supports a wide input voltage range and provides adjustable output voltage, making it suitable for powering microcontrollers, sensors, and embedded systems.
Its high efficiency and compact design make it widely used in flight controllers, power modules, and battery-powered devices.

Key Features
Power & Performance-
Output current: up to 3A
High efficiency (up to ~95%)
Fixed switching frequency: 1.5 MHz

Input & Output-
Input voltage range: 4.5V to 28V
Adjustable output voltage: 0.8V to ~20V
Internal compensation for stable operation

Efficiency-
Low RDS(on) internal MOSFET
High efficiency across wide load range

Protection Features-
Thermal shutdown
Overcurrent protection
Short-circuit protection

Control & Operatio
Enable (EN) pin for power control
Soft-start functionality
Fast transient response

Package Information-
Package Type: SOIC-8 (Exposed Pad)
Mounting Type: Surface Mount (SMD)
Package ontents-
1 × MP1584EN Buck Converter IC

Applications-
DC-DC step-down power supplies
Flight controllers and embedded systems
Battery-powered devices
Automotive electronics
Industrial power regulation
Power modules and adapters

Usage Note-
Requires external components:
Inductor
Schottky diode
Input/output capacitors
Feedback resistors
Ensure proper PCB layout for stable operation (very important for switching regulators)

Datasheet: –MP1584EN