Switching

LT8390 – 60V Synchronous 4-Switch Buck-Boost Controller with Spread Spectrum

Features 4-Switch Single Inductor Architecture Allows VIN Above, Below or Equal to VOUT Synchronous Switching: Up to 98% Efficiency Proprietary Peak-Buck Peak-Boost Current Mode Wide VIN Range: 4V to 60V ±1.5% Output Voltage Accuracy: 1V ≤ VOUT ≤ 60V ±3% Input or Output Current Accuracy with Monitor Spread Spectrum Frequency Modulation for Low EMI High Side

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LTC3786 – Efficient boost controller takes the heat

Features Synchronous Operation For Highest Efficiency and Reduced Heat Dissipation Wide VIN Range: 4.5V to 38V (40V Abs Max) and Operates Down to 2.5V After Start-Up Output Voltages Up to 60V ±1% 1.2V Reference Voltage RSENSE or Inductor DCR Current Sensing 100% Duty Cycle Capability for Synchronous MOSFET Low Quiescent Current: 55μA Phase-Lockable Frequency (75kHz

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TORPEDO: an all-purpose switched-mode power supply

Having explained the theory, let’s see in practice the project of the SEPIC power supply.   In this post we discussed – on a theoretical level (even if in a simplified way) – the SEPIC switching converters, also highlighting advantages and disadvantages, and giving you the basics for the calculation of their components. Let’s get

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Dual input, 2.5A step-down DC/DC achieves 95% efficiency

Features Seamless, Automatic Transition Between Two Input Power Sources Wide Input Voltage Range: 2.4V to 42V Wide Output Voltage Range: 0.818V to VIN Up to 2.5A Continuous Output Current Pin Selectable Priority and Ideal Diode-OR Modes Burst Mode® Operation, IQ = 2μA 95% Efficiency at 1A, VIN = 12V, VOUT = 5V 1μA Current in Shutdown

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LTC3623 – Switching regulator doubles as Class-D audio amplifier

Sure thing, Elektor has published several designs of adjustable power supplies based on switching regulators, so we know that doing this properly in a reproducible way and without making things overly complex requires some serious head scratching. The anxiety may be reduced vastly though by a new adjustable synchronous buck regulator which uses a single

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48V/12V DC/DC for automotive dual-rails offers bidirectional power flows

Features Unique Architecture Allows Dynamic Regulation of Input Voltage, Output Voltage or Current VHIGH Voltages Up to 100V VLOW Voltages Up to 30V Synchronous Rectification: Up to 97% Efficiency LTC-Proprietary Advanced Current Mode Control ±1% Voltage Regulation Accuracy Over Temperature Accurate, Programmable Output Current Monitoring and Regulation for Both Buck and Boost Operation Selectable Buck

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Switching between Red, Green and Blue (or Blue1 or/and Blue2 for an RGBB type) using AVR microcontroller

Switching between Red, Green and Blue (or Blue1 or/and Blue2 for an RGBB type): An RGB LED is a LED which has three (or four for an RGBB type) semi-conductor LED’s in one normal housing i.e. standard 5 mm. The Red LED is made of Gallium Arsenide Phosphide on Gallium Phosphide, the Green LED is

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Vishay Siliconix’s SiP280x Low-Power Current-Mode Controllers for 10-W to 250-W Power Supplies Feature 1-A Output Drivers, Switching Frequencies up to 1 MHz

Santa Clara, CA (PRWEB) November 4, 2004 A new family of low-power current-mode controllers that provide increased efficiency and flexibility in cost-sensitive power-supply designs was announced today by Siliconix incorporated (NASDAQ: SILI), an 80.4%-owned subsidiary of Vishay Intertechnology, Inc. (NYSE: VSH).   The first true direct replacements for the industry-standard UCC380x and UCC280x families of

Vishay Siliconix’s SiP280x Low-Power Current-Mode Controllers for 10-W to 250-W Power Supplies Feature 1-A Output Drivers, Switching Frequencies up to 1 MHz Read More »

Power Integrations' New LinkSwitch

SAN JOSE, Calif. (PRWEB) May 27, 2008 LinkSwitch-II, a new generation in Power Integrations’ extremely successful LinkSwitch series of ICs, simplifies the design of accurate output CV/CC converters by eliminating the need for optocouplers and all secondary-side CV/CC control circuitry as well as all control-loop compensation circuitry. By integrating all control and protection circuitry plus

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