Lm2596-ADJ Buck Regulator output adjustable 1.2v to 35v load up to 3amps

High efficient and compact project is capable of driving a 3Amp load with excellent line and load regulation with output adjustable 1.2V to 35V DC.  The project built around LM2596ADJ regulator which is ideally suited for easy and convenient design of step-down switching regulator using buck converter topology. Adjustable output version of LM2596 is internally compensated to minimize the number of external components to simplify the power supply design. PCB dimensions 39.65 X 33.20MM

Features

  •     Adjustable Output Voltage Range 1.23 V 35 V
  •     Guaranteed 3.0 A Output Load Current
  •     Wide Input Voltage Range up to 40 V
  •     150 kHz Fixed Frequency Internal Oscillator
  •     Thermal Shutdown and Current Limit Protection
  •     Internal Loop Compensation
  •     Moisture Sensitivity Level (MSL) Equals 1

Applications

  •     Simple HighEfficiency StepDown (Buck) Regulator
  •     Efficient regulator for Linear Regulators
  •     OnCard Switching Regulators
  •     Positive to Negative Converter (buck-boost)
  •     Negative StepUp Converters
  •     Power Supply for Battery Chargers


Bill Of Material
R1 4K7 SMD 0805
R2 1.21K 1% SMD 0804
PR1 TRIMMER POTENTIOMETER
L1 33uH/5A SMD 12MM INDUCTOR
C2,C3 220uF/50V SMD ELECTROLYTIC
C1 100uF/50V SMD ELECTROLYTIC
LM2596-ADJ TO263 SMD ONSEMI/TEXAS INSTRUMENTS
D1 MBRS340T3 SMD ON SEMI
D2 RED LED SMD 0805
CN1, CN2 2 PIN SCREW TERMINALS


1.2V To 37V, 3Amp Adjustable Power Supply Using LM2576

This regulator board delivers 3Amp current and adjustable voltage range 1.23V to 37V, with input voltage 40 V.The board built around LM2576-ADJ from Texas instruments. A 3.0 A output current capability power supply that features an adjustable output voltage,  In order to achieve a 10 or more times reduction of output ripple. LM2575ADJ IC also can be used in same project if output current requirement is low as 1Amp.LM2576HVT-ADJ IC Can help to provide higher voltage output range 1.2V-50V @ 3Amp current.

Features

  • Output 1.2 to 37 VDC @ 3 A
  • Onboard Trim-Potentiometer for output voltage adjust
  • On Board Power LED
  • Header Connector For Input & Output
  • Adjustable Version Output Voltage Range, 1.23 to 37 V +/-4%
  • Maximum Over Line and Load Conditions
  • Guaranteed 3.0 A Output Current
  • Wide Input Voltage Range 40V
  • 52 kHz Fixed Frequency Internal Oscillator
  • TTL Shutdown Capability, Low Power Standby Mode
  • High Efficiency
  • Thermal Shutdown and Current Limit Protection

 

 

 

 

 

 

 

 

Download Data Sheet LM2576ADJ

Download Data Sheet LM2575ADJ

 


LM2576HVT Based Circuit can provide higher voltage output Range 1.2V to 50V DC , current upto 3Amps