Eight new dc-dc converters from MEAN WELL span the one to six-watt power range and come in single in-line packages (SIPs). Two of the converters are unregulated 1-W devices while the rest provide 2, 3, and 6-W outputs. All provide ultra-wide input range (the widest 4:1) and an ultra-wide range of working temperatures (-40~+90°C) and […]
Regulators
Synchronous step-down silent switcher delivers 94% efficiency at 2MHz
Analog Devices, Inc. announces the LT8645S, an 8A, 65V input capable synchronous step-down switching regulator. Its unique Silent Switcher® 2 architecture uses two internal input capacitors as well as internal BST and INTVCC capacitors to minimize the area of the hot loops. Combined with very well controlled switching edges and internal construction with an integral […]
Synchronous step-down silent switcher puts out 6 A, features ultra-low EMI/EMC emissions
Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LT8640S, a 6A, 42V input synchronous step-down switching regulator. Its unique Silent Switcher 2 architecture uses two internal input capacitors as well as internal BST and INTVCC capacitors to minimize the area of the hot loops. Combined with very well controlled switching edges and an […]
Step-down regulator meets CISPR 22 Class B specs
Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LTM8073, a µModule® (power module) step-down regulator with up to 60V input voltage range (65V abs max). The device can safely operate from unregulated or fluctuating 24V to 48V input supplies in noisy environments such as communication infrastructure, factory automation, industrial robotics and avionics […]
Sync buck regulators step down inputs to just 0.6 V
Intersil, a subsidiary of Renesas Electronics Corporation (TSE: 6723), today introduced five synchronous buck regulators that step-down 12V rails to point-of load inputs as low as 0.6V for MCUs, FPGAs, memory and peripheral I/Os. The newest members of the ISL850xx family consist of the ISL85014, ISL85012, ISL85009, ISL85005A and ISL85005 buck regulators. They deliver 14A, […]
What is a charge pump and why is it useful? (Part 1)
It’s a very common challenge in circuits to need to convert an available DC source to a lower or higher voltage. For the high-to-low conversion, one option to use a low dropout regulator (LDO), but how to easily transform a lower voltage into a higher one? For AC voltages, the answer is well-known: use a […]
Avoiding mobile device brownouts
By Chuck Wong, Intersil, a Renesas Company With the ever-increasing performance of mobile application processors and GPUs, the need for a buck-boost regulator to stabilize the Li-ion battery supply-voltage terminals is becoming more and more important. Buck-boost regulators prevent brownout (a condition where power is briefly lost) by boosting the supply voltage during the notching […]
100-V no-opto flyback regulator delivers up to 24 W, 1-kV Output
Linear Technology Corporation announces the H-grade versions of the LT8304/-1, monolithic flyback regulators with guaranteed operation for junction temperatures as high as 150°C. By sampling the isolated output voltage directly from the primary-side flyback waveform, the part requires no opto-coupler or third winding for regulation. The LT8304 operates over a 3V to 100V input voltage […]
New Family of 20-A 48-V ZVS Buck Regulators target PoL apps
The PI3525-00-LGIZ is the latest addition to the Cool-Power ZVS Buck Regulator Portfolio with a 48V (30-60Vin) input. The PI352x is a higher current offering to the existing PI354x portfolio enabling scalable power options for 48V Direct to point of Load (PoL) applications. The PI3525-00-LGIZ is a 5V output regulator, supplying up to 20A, packaged […]
Monolithic flyback regulator for junction temperatures up to 150°C.
Linear Technology Corporation announces the H-grade version of the LT8303, a monolithic flyback regulator with guaranteed operation for junction temperatures as high as 150°C. By sampling the isolated output voltage directly from the primary-side flyback waveform, the part requires no opto-isolator or third winding for regulation. The LT8303 operates over a 5.5V to 100V input […]