Linear Technology announces the LTC3119, a synchronous current mode monolithic buck-boost converter that delivers up to 5A of continuous output current in buck mode from a wide variety of input sources, including single- or multiple-cell batteries, unregulated wall adapters as well as solar panels and supercapacitors. The device’s 2.5V to 18V input voltage range extends […]
linear technology
Regulator combines SEPIC, inverting conversion for dual outputs
Linear Technology introduces the LTM8049, a dual output, two-function DC/DC µModule® (power module) regulator in 15mm x 9mm x 2.42mm BGA package. One function is SEPIC (single-ended primary-inductor converter) in which the output voltage is regulated while the input voltage can vary to be less, equal or more than the value of the output voltage. […]
DC/DC converter regulates current within ±2% for LED strings
The LT3922 is a monolithic, synchronous, step-up DC/DC converter with internal 40V, 2A power switches and an internal PWM generator. Its fixed frequency peak current mode control accurately regulates current within ±2% for a string of LEDs up to 34V. Its integrated PWM generator offers up to 128:1 dimming ratio. If dimming ratios of up […]
Power regulators handle high-power, low-voltage sub-28-nm GPUs, FPGAs, ASICs, and processors
Linear Technology Corp. introduces the LTM4650-1A and LTM4650-1B, dual 25A or single 50A µModule (power module) regulators scalable to deliver 300A to high power, low voltage sub-28nm GPUs, FPGAs, ASICs and microprocessors. The low core voltage of these digital devices requires very accurate voltage regulation at both steady state (DC) and fast load current transients. The […]
DC/DC 4-quad controller delivers 5-A from 80-V input
Linear Technology Corporation announces the LT8714, an 80V input synchronous PWM four quadrant output DC/DC controller. This device cleanly transitions the output voltage through zero volts with up to 5A sourcing and sinking current capability, regardless of the output voltage polarity, making it ideal for regulating to positive, negative, or zero volts. The bipolar output […]
Bypass Switch Enables Independent Dimming for LEDs, LED Segments
Linear Technology Corporation has announced the LT3965, a LED bypass switching device that enables independent dimming and diagnostics of eight individual LEDs or LED segments. The LT3965 works in conjunction with a LED driver circuit configured as a current source. It features eight individually controlled floating 17V/330mΩ NMOS switches. Using these internal power switches and […]
DC/DC controller draws just 50µA in standby
Linear Technology Corporation introduces the LTC3807, a low quiescent current synchronous step-down DC/DC controller that draws only 50µA in standby mode with the output voltage in regulation. The 4V to 38V input supply range is designed to protect against high voltage transients, continue operation during automotive cold crank and cover a broad range of input […]
Linear Technology LT8614 “SilentSwitcher”
The Linear Technology LT8614 “SilentSwitcher” claims to reduce EMI/EMC emissions to well below the CISPR 25 Class 5 limit. It also seems a well specified step-down switching regulator with 2.5µA quiescent current, up to 42V input and 4A output current. It also has a high efficiency of 96% at 1MHz (it is a synchronous regulator). […]
