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Low Voltage , High Current Time Delay - in this circuit a LM339 quad voltage comparator is used to generate a time delay and control a high current output at low voltage. Approximately 5 amps of current can be obtained using a couple fresh alkaline D batteries. Three of the comparators are wired in parallel to drive a medium power PNP transistor (2N2905 or similar) which in turn drives a high current NPN transistor (TiP35 or similar). The 4th comparator is used to generate a time delay after the normally closed switch is opened __ Designed by Bill Bowden
Low Voltage High Current Time Delay - in this circuit a LM339 quad voltage comparator is used to generate a time delay and control a high current output at low voltage. Approximately 5 amps of current can be obtained using a couple fresh alkaline D batteries. Three of the comparators are wired in parallel to drive a medium power PNP transistor (2N2905 or similar) which in turn drives a high current NPN transistor (TiP35 or similar). The 4th comparator is used to generate a time delay after the normally closed switch is opened __ Designed by Bill Bowden
Low Voltage Hot Swap Controller Ignores Backplane Noise & Surges - DN319 Design Notes__ Linear Technology/Analog Devices
Low-Battery Detector Preregulates Input Voltage - 08/15/96 EDN Design Ideas: The circuit in Figure 1 uses the comparator and voltage reference of a low-battery detector to preregulate the input voltage. The circuit provide as an additional regulated voltage output at VOUT1 and significantly reduces the linear regulator's (VOUT2's) power dissipation. The two outputs (12V at 50 mA and 5V at 100 mA) are independent. Design by Khy Vijeh, Analog Devices Inc, Santa Clara, CA
Low-cost switcher converts 5 to 24V - 02/16/98 EDN Design Ideas: (File contains several circuits, scroll to find this one) Design by Paul C Florian, Plano, TX
Low-dropout 12V regulator LM324 - Most regulator circuits require at least 3 to 5 volts between input and output to operate reliably. This regulator features a P-Channel MOS-FET pass element that will allow for a very low drop out voltage. in my particular application reliable operation was noted down to nearly 0.1volt between input and output at nearly 0.8 amperes of load current. Useful applications include automotive and battery applications were regulation is desired and available input-output differential __ Designed by Robert A. Jones
Low-dropout linear regulators Deliver constant currents - 05/11/06 EDN Design Ideas: High-side current source uses a positive-output linear voltage regulator to deliver 25 mA Design by Budge Ing, Maxim Integrated Products Inc, Sunnyvale, CA
Low-dropout linear regulators double as voltage-supervisors - 03/16/06 EDN Design Ideas: You can use this circuit as a voltage supervisor or as a controlled-characteristic linear-voltage regulator Design by William Lepkowski, On Semiconductor, Tucson, AZ
Low-dropout regulator, SMPS cascade suppress ripple, maintain efficiency - 3-Aug-06 EDN Design Ideas: Two regulators work better than one in noise-sensitive applications Design by Scot Lester, Texas Instruments, Dallas, TX
Lower DC/DC converter ripple by using optimum capacitor hookup - 31-Oct-02 EDN Design Ideas: 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 by Keith Szolusha, Linear Technology Corp, Milpitas, CA
Low-Power Voltage Doubler - All miniature electronic devices operate off batteries. Some of them need higher than the standard battery voltages to operate efficiently. if the battery of that specific voltage is unavailable, we are...__ Electronics Projects for You
Low-Voltage Adjustable Regulator - Need to operate a CD, DVD or MP3 player from the cigarette lighter socket in your car? Or perhaps run a digital still or video camera or some powered speakers from the power supply inside your PC? This Low-Voltage Adjustable Regulator will step the voltage down to what's needed. it has jumper shunts to select one of six common output voltages (from 3-15V) and depending on the input voltage and the heatsink (s) you use, it can deliver an output current of just over 4A.__ SiliconChip
LS8 Package Improves Stability of Voltage References - Stability of precision electronic circuits is often dominated by the stability of the voltage reference. Most electronic systems rely on one or more voltage references to ensure that measurements or performance meets specifications, especially over long periods of time. Environmental factors directly affect the stability __ Linear Technology/Analog Devices App Note, Brendan Whelan Design Manager-Signal Conditioning Products Feb 12th 2013
LT1074/LT1076 Design Manual - AN44 Linear Technology This 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 App Note is intended to eliminate the most common errors that customers make when using switching regulators__ Linear Technology/Analog Devices
LT1120A-Micropower Regulator with Comparator & Shutdown - Switching Regulator__ Linear Technology/Analog Devices
LT1339 Design Manual - AN73 Linear Technology This App 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__ Linear Technology/Analog Devices
LT1370: a 500kHz 6a Monolithic Boost Converter - DN183 Design Notes__ Linear Technology/Analog Devices
LT1534 UltraLow Noise Switching Regulator Controls EMI - DN178 Design Notes __ Linear Technology/Analog Devices
LT1580 Fast Response Low Dropout Regulator Achieves 0.4 Dropout at 4 Amps - DN119 Design Notes __ Linear Technology/Analog Devices
LT1777 High Voltage Low Noise Buck Switching Regulator - DN212 Design Notes__ Linear Technology/Analog Devices
LT3009 3μA IQ, 20mA Low Dropout Linear Regulators-Video Product Brief - The LT3009 Series are micropower, low dropout voltage (LDO) linear regulators. The devices supply 20mA output current with a dropout voltage of 280mV. No-load quiescent current is 3μA. Ground pin current remains at less than 5% of output current as load increases. in shutdown, quiescent current is less than 1μA. __ Linear Technology/Analog Devices App Note, Tony Armstrong-Director of Product Marketing Dec 7th 2009
LT3015 1.5A, Low Noise, Negative LDO with Precision Current Limit-Video Product Brief - The LT®3015 series are low noise, low dropout, negative linear regulators with fast transient response. The devices supply up to 1.5A of output current at a typical dropout voltage of 310mV. Operating quiescent current is typically 1.1mA and drops to < 1μA in shutdown. Quiescent current is also well controlled in dropout. __ Linear Technology/Analog Devices App Note, Steve Knoth-Senior Product Marketing Engineer Mar 25th 2013
LT3070 5A, Low Noise, Digitally Programmable Output, 85mV LDO Regulator-Video Product Brief - The LT3070 is a low voltage, UltraFast™ transient response linear regulator. The device supplies up to 5A of output current with a typical dropout voltage of 85mV. A 0.01μF reference bypass capacitor decreases output voltage noise to 25μVRMS. The LT3070’s high bandwidth permits the use of low ESR ceramic capacitors, saving__ Linear Technology/Analog Devices App Note, Steve Knoth-Senior Product Marketing Engineer Jun 29th 2010
LT3080 Adjustable 1.1A Single Resistor Low Dropout Regulator-Video Product Brief - The LT3080 is a 1.1A low dropout linear regulator that can be paralleled to increase output current or spread heat in surface mounted boards. Architected as a precision current source and voltage follower allows this new regulator to be used in many applications requiring high current, adjustability to zero, and no heat sink. __ Linear Technology/Analog Devices App Note, Steve Knoth-Senior Product Marketing Engineer Nov 18th 2009
LT3081 1.5A Single Resistor Rugged Linear Regulator with Monitors-Video Product Brief - The LT3081 is a 1.5A low dropout linear regulator designed for rugged industrial applications with monitoring and protection features. Key features of the device are the extended safe operating area, wide input and output voltage ranges, output current monitor, temperature monitor and programmable current limit. The LT3081__ Linear Technology/Analog Devices App Note, Steve Knoth-Senior Product Marketing Engineer Jul 30th 2013
LT3465-1.2MHz White LED Step-Up Converters with Built-In Schottky in ThinSOT - LT3465 Switching Regulator__ Linear Technology/Analog Devices
LT3465A-2.4MHz White LED Step-Up Converters with Built-In Schottky in ThinSOT - Switching Regulator__ Linear Technology/Analog Devices
LT3757 Boost, Flyback, SEPIC & Inverting Controller-Video Product Brief - The LT3757 is a wide input range, current mode, DC/DC controller which is capable of generating either positive or negative output voltages. it can be configured as either a boost, flyback, SEPIC or inverting controller. The LT3757 drives a low side external N-channel power MOSFET from an internal regulated 7.2V supply. The__ Linear Technology/Analog Devices App Note, Kevin B. Scott-Strategic Marketing Engineer Jun 4th 2010
LT6110-Cable/Wire Drop Compensator with LT1965 Linear Regulator - Click Here For A Ready To Run LTspice Circuit Demonstration The LT®6110 is a precision high side current sense with a current mode output, designed for controlling the output voltage of an adjustable power supply or voltage regulator. This can be used to compensate for drops in voltage at a remote load due to resistance __ Linear Technology/Analog Devices App Note, Greg Zimmer Oct 17th 2013
LT8705 80V VIN / VOUT Synchronous 4-Switch Buck-Boost DC/DC Controller-Video Product Brief - The LT®8705 is a high performance buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage. The part has integrated input current, input voltage, output current and output voltage feedback loops. With a wide 2.8V to 80V input and 1.3V to 80V output range, the__ Linear Technology/Analog Devices App Note, Bruce Haug-Senior Product Marketing Engineer Jun 11th 2013
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