Electronic Circuits and electronic circuits, electronic schematics plus an extensive resource for hobbyists, inventors and engineers

DiscoverCircuits.com, has 45,000+ electronic circuits, cross-referenced
into 500+ categories.    We have searched the web to help you find quick design ideas.
We make every effort to link to original material posted by the designer. 
Please let us if you would like us to link to or post your design.

HOME Schematics Index Hobby Corner Dave's Circuits Electronic Resources Contact Info
Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches


Buck / Step Down Power Supplies, Page 4
Buck:  Page 1,   Page 2,   Page 3,    Page 4,   Page 5

Boost,    Buck,    Buck-Boost,    Switchmode
Power Supplies -- Main Page           Converters -- Main Page
Last Updated on: Thursday, November 30, 2017 04:30 PM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Hot Swap Push-Pull Sync. Buck Negative Flyback Dual Sync. Buck Reference Design -  Hot Swap, Push Pull, Sync. Buck, Negative Flyback, Dual Sync. Buck with Vin of -36 V to -72V. Vout of 8 V, 5 V, 3.3 V, 2.5 V and -5 V. The output power is 79.5 W.  (added 3/05)
IRDCiP1202-A 300kHz Dual 15A 5.5VIN to 13.2VIN Dual Output Synchronous Buck Converter using iP1202 -  This board allows engineers to easily evaluate the iP1202 in an independent and parallel configuration that is capable of providing up to 15A per phase with double-sided heat sinking.  (added 6/06)
IRDCiP2001-A 500kHz 40A 2-phase Synchronous Buck Converter using iP2001 -  This board enables engineers to easily evaluate the iP2001 in a 2-phase configuration that is capable of providing up to 40A in a lab environment without airflow.  (added 6/06)
Isolated Converters Have Buck Simplicity & Performance -  DN377  Design Notes (Linear Technology)  (app note added 1/06)
LDO Buck/Boost 2 Sync Buck Sync Boost Reference Design -  LDO, Buck/Boost, 2 Sync. Buck, Sync. Boost with Vin 2.7-4.2 V LiION or 4.5-6.5 V adapter. Multiple output voltages of 1.5 V, 2.5 V, 3.3 V and 8 V. The total output power is 5.5 W. (added 3/05)
[_OLD-ads-dont_upload/OLD I-ADS from web/ad-djandassoc.htm]
LED Buck PFM -  This is a proof of concept circuit which needs improvement. The part values shown will run a high efficiency red LED with a Vf of 1.9V from only 2 nicads, right down to 2 volts. For a white LED you will need more batteries and you must increase the 1.0K resistor to a higher value. Current sensing at a mere.... [Circuit by Stepan Novotill]
LED HeadLamps -  This article includes circuits of DC-DC LED drivers step downs to run LEDs on less than Battery Volts, Boost for above. (added 4/02)
LM2675 5.0EVAL 1 Amp Step Down High Efficiency Simple Switcher Evaluation Board -  The LM2675-5.0EVAL evaluation board is a fully-assembled and tested surface-mount regulator that provides a 5V±1.5% output at up to 1A, from an input of 8V to 40V. The overall efficiency is typically as high as 90%. The operating temperature range is 0°C to +85°C.  (app note added 3/05)
Low EMI Synchronous DC/DC Step-Down Controllers offer Programmable Output Tracking -  DN382  Design Notes (Linear Technology)  (app note added 1/06)
Lower dc/dc converter ripple by using optimum capacitor hookup -  31-Oct-02 Issue of EDN  Low-ripple-voltage positive-to-negative dc/dc converters find use in many of today's high- frequency and noise-sensitive disk drives, battery-powered devices, portable computers, and automotive applications. Like a positive buck converter, a positive-to-negative converter can have low output-ripple voltage if you place the bulk input capacitor between VIN and VOUT rather than between VIN and gr.... [Design Idea by Keith Szolusha, Linear Technology Corp, Milpitas, CA]
LT1074/LT1076 Design Manual -  AN44 Linear TechnologyThis note discusses the use of the LT107)4 and LT107)6 high efficiency switching regulators. These regulators are specifically designed for ease of use.  This application note is intended to eliminate the most common errors that customers make when using switching regulators....(app note added 2/06)
LT1339 Design Manual -  AN73 Linear TechnologyThis application note contains detailed design information to allow the reader to craft switching regulators using the LT1339 high power synchronous DC/DC converter. The note provides expanded pin descriptions for the LT1339 as well as easy-to-use graphical tools....(app note added 1/06)
LT1777 High Voltage Low Noise Buck Switching Regulator -  DN212  Design Notes (Linear Technology) (app note added 1/06)
LTC1265: A New High Efficiency Monolithic Buck Converter -  DN105  Design Notes (Linear Technology) (app note added 1/06)
Monolithic Step-Down Regulator Withstands the Rigors of Automotive Environments & Consumes Only 100µA of Quiescent Current -  DN378  Design Notes (Linear Technology)....[App Note]
Monolithic Synchronous Step-Down Regulators Pack 600mA Current Rating in a ThinSOT Package -  DN300  Design Notes (Linear Technology) (app note added 6/06)
No Design Switching Regulator 5V 5A Buck Step Down Regulator -  DN48  Design Notes (Linear Technology) (app note added 1/06)
No Design Switiching Regulator 5V Buck/Boost Positive to Negative Regulator -  DN49  Design Notes (Linear Technology) (app note added 1/06)
Notebook Power Supply has Two Outputs -  03/03/94 EDN-Design Ideas....The notebook-computer supply in Fig 1 powers the 5V logic and derives an adjustable -24V supply for an LCD's backplane. The design uses only a high-efficiency buck regulator (Si9150]and an NMOS/PMOS, dual-power-FET chip set (Si9943].... [Design Idea by Steven C Hageman, Calex Manufacturing Co Inc, Concord, CA]
Obtain a lower DC voltage from a higher voltage power supply -  06/08/06 EDN-Design Ideas....Linear stepdown regulator saves watts.... EDN is migrating links. This link is not verified.  Google the "title" EDN for new link.
Obtain higher voltage from a buck regulator -  29-May-03 Issue of EDN  Several semiconductor vendors'current-mode buck controllers have input-voltage ranges of 30 to 36V but have output-voltage ranges from the reference voltage to approximately 6V.  This output-voltage constraint arises from the common-mode-voltage limitation of the current-sense amplifier. In real-world applications, the power-supply designer must be able to generate high output voltage for printe.... [Design Idea by Ajmal Godil, Micrel Semiconductor, San Diego, CA]
Buck:  Page 1,   Page 2,   Page 3,    Page 4,   Page 5
Power Supplies -- Main Page           Converters -- Main Page


HOME Schematics Index Hobby Corner Dave's Circuits Electronic Resources Contact Info
Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches


 About Us   |  Advertise on DiscoverCircuits.com   |   Report Broken Links  |    Link to DiscoverCircuits.com  |    Privacy Policy


Copyright  January, 1998 - November, 2017     David A. Johnson & Associates.  All Rights reserved. 


 Linking is ALLOWED but COPYING any content or graphics to your web site is EXPRESSLY PROHIBITED.