Model No: MP1584EN-LF-Z

Monolithic Power Systems Inc. MP1584EN-LF-Z

Manufacturer: Monolithic Power Systems Inc.
SEMICON NO.: MP1584EN-LF-Z
Package: 8-SOIC
Stock: In stock
Description: Buck Switching Regulator IC 0.8V 1 Output 3A
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 Mfr   Monolithic Power Systems Inc. 
 Product Series MP1584 
 Device Type Step-Down (Buck) Switching Regulator 
 Output Configuration  Positive 
 Topology Buck (Step-Down) 
 Output Type Adjustable 
 Number of Outputs 1
 Input Voltage Range (VIN) 4.5 V to 28 V 
 Output Voltage Range 0.8 V to 25 V 
 Output Current (Max) 3 A 
 Switching Frequency 100 kHz to 1.5 MHz 
 Quiescent Current (Iq) 100 µA (typical) 
 Operating Temperature -20°C to +85°C
 Package 8-SOIC
 Mounting Type Surface Mount
 Compliance    
 RoHS Compliant
MP1584EN-LF-Z step-down DC-DC converter 
The MP1584EN-LF-Z is a high-frequency, high-efficiency synchronous step-down DC-DC converter from Monolithic Power Systems (MPS), integrating a high-voltage power MOSFET in a thermally enhanced SOIC8E package. It delivers up to 3A continuous output current (peak 4A) with a wide 4.5V to 28V input voltage range, making it suitable for automotive, industrial, and battery-powered systems. The device operates at a fixed 1.5MHz switching frequency, minimizing external component size and reducing EMI noise, while current-mode control ensures fast transient response and easy loop compensation. With a quiescent current of just 100µA and high efficiency (up to 96% at 12V input/5V output), it optimizes power consumption for energy-sensitive applications.
The MP1584EN-LF-Z serves a broad range of power management applications: 
● Automotive electronics (12V/24V systems, infotainment, ADAS)
● Industrial controls (PLCs, sensors, motor drivers)
● Consumer electronics (TVs, set-top boxes, cameras); battery-powered devices (portable tools, medical equipment)
● Networking/telecom hardware (routers, switches, PoE devices). 
Its ability to efficiently convert higher voltages to low, stable outputs makes it ideal for powering microcontrollers, FPGAs, memory modules, and precision analog circuits across diverse sectors.
Alternativestep-down regulators
1. The onsemi LM2596S-ADJ delivers 3A output with a broader 40V input range and simple design architecture but operates at lower 150kHz frequency requiring larger external components.
2. The Diodes Incorporated AP1509 provides a 2A 150KHz 40V buck converter in SOP-8 package offering cost-effective solutions for lower current requirements.
3. The TI TPS54360 supports 60V input and 3.5A output with enhanced thermal performance for higher voltage industrial applications.
4. The MPS MP2307 provides a 3A 23V synchronous buck converter with integrated switches achieving higher efficiency through synchronous rectification.