5PCS XL6009 Boost Buck DC Adjustable Step Up Down Converter Module VoltageAuto start voltage will be pulled   down to 7V less or smaller engine at high speed when the voltage up to   15V or higher. For 12V electrical work hard at work, this automatic buck   module solves this problem , regardless of the input voltage is 5V or   12V or 32V, the output can be stabilized at 12V.
Wide input voltage 5V ~ 32V;
Wide Output Voltage 1.25V ~ 35V ( with automatic buck , scope of   work, any voltage inputs can be arbitrarily regulated voltage output
Built- 4A efficient MOSFET switches enable efficiency up to 94%; (LM2577 current is 3A)
high switching frequency of 400KHz, the ripple is smaller and smaller . (LM2577 frequency only 50KHz)
Application:
Car regulator , solar photovoltaic, wind power and other applications of voltage instability .
Technical parameters:
Model Specification：DSN6000AUD Automatic Buck module
Module Properties：Non- isolated boost (BOOST)
Rectification：Non- Synchronous Rectification
Input Range：3.8V ~ 32V
Output Range：1.25V ~ 35V
Input   Current：3A ( max ) , no-load 18mA (5V input , 8V output , no-load is   less than 18mA. Higher the voltage , the greater the load current . )
Conversion efficiency：< 94% ( greater the pressure , the lower the efficiency )
Switching frequency：400KHz
Output Ripple：50mV ( the higher the voltage , the greater the current , the greater the ripple )
Load Regulation：± 0.5%
Voltage Regulation：± 0.5%
Operating Temperature：-40 ℃ ~ +85 ℃
Package Included:
5x   Boost Buck DC-DC adjustable step up down Converter XL6009 Module Solar Voltage
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On Sep-01-21 at 20:21:14 PDT, seller added the following information: