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Description
SIMPLE SWITCHER 5A Flyback Regulator
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FEATURES
● Requires Few External Components
● Family of Standard Inductors and Transformers
● NPN Output Switches 5.0A, can Stand Off 65V
● Wide Input Voltage Range: 4V to 40V
● Current-Mode Operation for Improved Transient Response,Line Regulation, and current Limit
● 100 kHz Switching Frequency
● Internal Soft-Start Function Reduces In-Rush current During Start-Up
● Output Transistor Protected by Current Limit, Under Voltage Lockout, and Thermal Shutdown
● System Output Voltage Tolerance of ±4% Max over Line and Load Conditions
TYPICAL APPLICATIONS
● Flyback Regulator
● Multiple-Output Regulator
● Simple Boost Regulator
● Forward Converter
DESCRIPTION
The LM2587series of regulators are monolithic integrated circuits specifically designed for flyback, step-up (boost),and forward converter applications. The device is available in 4 different output voltage versions: 3.3V, 5.0V, 12V, and adjustable.
Requiring a minimum number of external components, these regulators are cost effective,and simple to use. Included in the datasheet are typical circuits of boost and flyback regulators. Also listed are selector guides for diodes and capacitors and a family of standard inductors and flyback transformers designed to work with these switching regulators.
The power switch is a 5.0A NPN device that can stand-off 65V. Protecting the power switch are current and thermal limiting circuits, and an under voltage lockout circuit. This IC contains a 100 kHz fixed-frequency internal oscillator that permits the use of small magnetics. Other features include soft start mode to reduce in-rush current during start up, current mode control for improved rejection of input voltage and output load transients and cycle-by-cycle current limiting. An output voltage tolerance of ±4%, within specified input voltages and output load conditions, is ensured for the power supply system.
Preview of the first 3 pages of the data sheet
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10000 buyer reviews from United States
Mark Wilson
Length of registration:7 years
The LM2587S-ADJ integrated circuit is a great product. It is easy to use and provides reliable power regulation. It is also very efficient and has a wide input voltage range. I have used it in several projects and have been very pleased with the results. Highly recommended!
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03/17/2023
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Warranty
All UTSOURCE purchases have a 60 days money back return policy, plus a 90 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
LM2587S-ADJ
LM2587S-ADJ has several brands around the world that may have alternate names for LM2587S-ADJ due to regional differences or acquisition. LM2587S-ADJ may also be known as the following names:
BUYING OPTIONS
Stock Status: 10000
Minimum: 2
Total Price:
Unit Price:2.05500
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