Since the first application of the wheel, an element of all practical engineering projects has been the make-or-buy decision. The issue is fractal, arising at every level of the design hierarchy: For any given function, at some level of abstraction, you’ll choose to switch between make and buy. But the decision doesn’t hinge on a […]
Regulators
Top power electronics threads on EDAboard.com – December
(editor’s note: Intrigued by these power electronics problems? Have a question or another solution? Then click the “Read more” link and follow the conversation on EDAboard.com or log in to EDAboard and participate in the power electronics forum thread.) Designing adjustable voltage SMPS – I am planning to make an adjustable voltage SMPS. How do I […]
When should I use an LDO versus a switching regulator?
Both switchers and LDOs have their place in power distribution, as each has special attributes. With few exceptions, every electronic circuit needs at least one well-regulated, accurate, stable dc power rail at 12, 5, 3.3 V, or even at 1 V, and many systems need five, ten or more such rails. This power must come […]
40-A power POL regulator features high thermal conduction
Linear Technology Corporation introduces the LTM4636, a 40A step-down µModule switching regulator with 3D construction for quicker heat dissipation and cooler operation in a small package. By stacking its inductor on top of a 16mm x 16mm BGA package, the LTM4636 benefits from the exposed inductor as a heat sink, permitting direct contact with airflow from […]
Step-down switching regulator targets 48-V auto, dual battery transportation, 36-72-V telecom apps
Linear Technology Corporation announces the LT8630, a 600mA, 100V input capable synchronous step-down switching regulator. Synchronous rectification delivers efficiency as high as 93% while Burst Mode® operation keeps quiescent current under 7µA in no-load standby conditions. Its 3V to 100V input voltage range makes it ideal for 48V automotive systems, dual battery transportation, industrial and […]
30-A to 180-A regulator module includes inductor, support components in BGA package
Linear Technology introduces the LTM4647, a 30A step-down µModule (power module) regulator. The LTM4647 includes the inductor, MOSFET, DC/DC controller and supporting components in a 9mm x 15mm x 5.01mm BGA package. The device’s conversion efficiency from 12VIN to 1VOUT at 30A is 87%, when delivering a full 30A continuously without a heat sink or […]
From the circuit vault on Electro-Tech-Online: Power Supplies
Forum members at EEWorld’s online engineering community Electro-Tech-Online have been sharing their electronic circuit ideas with other members for years. Now we’re featuring some of those circuits and projects you can build on EEWorldonline. Look for future posts featuring power, robotics, high voltage and audio circuits, as well as many others — all created by our […]
Ultralow-noise LDO delivers up to 50 0mA output with a 260-mV dropout
Linear Technology announces the LT3045, an ultralow noise, ultrahigh power supply ripple rejection (PSRR) low dropout voltage linear regulator, a higher output current version of the widely accepted 200mA LT3042 ultralow noise LDO. The LT3045’s unique design features ultralow spot noise of only 2nV/√Hz at 10kHz and 0.8μVRMS integrated output noise across a wide 10Hz […]
2.5A, 42V synchronous step-down switching regulator delivers 95 percent efficiency
Linear Technology Corporation announces the LTC3126, a 2.5A, 42V synchronous step-down switching regulator with an integrated dual input PowerPath™ control. A unique power stage topology enables operation from either of two independent power sources, with seamless, internally controlled transitions between inputs to ensure a stable output voltage during hot-plug and power source disconnect events. Internal […]
Small LDOs target automotive safety modules
ROHM has recently announced the availability of the world’s smallest LDO regulators designed for automotive safety modules requiring greater reliability and increased miniaturization, such as sensors, cameras, and radars in ADAS (Advanced Driver Assistance System) applications. In recent years, the proliferation of accident prevention measures and automated driving systems are demanding advanced safety systems that […]
