LM2587SX-5.0/NOPB

Voltage - Output (Min/Fixed):	5V
Base Part Number:	LM2587
Supplier Device Package:	DDPAK/TO-263-5
Package / Case:	TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	100kHz
Current - Output:	5A (Switch)
Voltage - Output (Max):	--
Series:	SIMPLE SWITCHER®
Voltage - Input (Max):	40V
Voltage - Input (Min):	4V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Boost, Flyback, Forward Converter
Output Configuration:	Positive
Function:	Step-Up, Step-Up/Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

The LM2587SX-5.0/NOPB is a monolithic step-down switching regulator with maximum 5 A output current. It is designed with a topology that integrates a high efficiency synchronous rectified buck regulator and a high-performance low-dropout linear regulator. It employs an advanced control scheme to minimize external components and simplify system numerous design. The LM2587SX-5.0/NOPB has a programmable top frequency, a programmable soft-start, adjustable output voltage and temperature shutdown and current limit.

Benefits and Features

The LM2587SX-5.0/NOPB comes with numerous benefits and features, among which are:• Minimum number of components: The topology requires minimum number of external components and simplifies the design.• Low cost: Using the low cost SMD packaging and small size, it enables cost effective solution for many applications.• High output current: It is designed to deliver up to 5 A output current and is ideal for high current applications.

Application Fields

The LM2587SX-5.0/NOPB is mainly used in applications such as, but not limited to: • Battery powered equipment: It is suitable for applications that require high current and low power consumption, such as cordless tools and battery-powered medical equipment. • Industrial control: The LM2587SX-5.0/NOPB is useful in a variety of industrial control applications that require high current and reliable operation.• Mass transportation: It is suitable for the design of power supplies for buses, trains, and ships.• Automotive: It can be used for power supplies for automobile audio systems and navigation systems. • Factory automation: The LM2587SX-5.0/NOPB is also suitable for automated factory equipment and microprocessor-controlled systems. • Portable electronics: It is designed to withstand thermal and mechanical shock, so it is ideal for use in space-constrained portable electronics such as mobile phones, digital cameras, and MP3 players.

Working Principle

The LM2587SX-5.0/NOPB operates on a pulse-width modulation (PWM) scheme that controls the output voltage in a fixed frequency. The output current is regulated by controlling the duty cycle to maintain the desired output voltage. The PWM scheme works as following:• PWM switching: The internal oscillator produces a high frequency square wave signal that is sent to the control logic block that determines the on/off periods.• Soft-start for load current: During the soft-start period, the control logic block reduces the duty cycle of the PWM square wave signal, allowing for gradual increase in the load current.• Constant operating frequency: The frequency is maintained through an internal oscillator and compensator circuits.• Voltage feedback regulation: The output voltage is monitored by the feedback pin and compared to a reference voltage. When the voltage feedback is lower than the reference voltage, the control logic increases the duty cycle; when the voltage feedback is higher than the reference voltage, the control logic decreases the duty cycle.• Over-temperature regulation: Includes a temperature-regulated shutdown functionality to protect the device and the load from thermal damage.

Conclusion

The LM2587SX-5.0/NOPB is a monolithic step-down switching regulator with maximum 5 A output current suitable for applications such as battery powered equipment, industrial control, mass transportation, automotive, factory automation, and portable electronics. It uses a pulse-width modulation (PWM) scheme and integrates a high efficiency synchronous rectified buck regulator and a high-performance low-dropout linear regulator. The LM2587SX-5.0/NOPB has a programmable top frequency, a programmable soft-start, adjustable output voltage and temperature shutdown and current limit.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description