Analog Devices announces the Power by Linear LT8672, an active rectifier controller with reverse input protection to –40V. Its 3V to 42V input voltage capability is ideal for automotive applications which must regulate through cold-crank and stop-start scenarios with minimum input voltages as low as 3.0V and load dump transients up to 40V. The LT8672 […]
Controllers
LLC resonant controller achieves 90 percent efficiency with a 10 percent load
The first in a family of new high-performance LLC controllers, TI’s new UCC256301 inductor-inductor-capacitor (LLC) resonant controller enables standby power of less than 40 mW when fully regulating the system output, while also performing better than industry efficiency requirements. By delivering the fastest transient response plus robust fault-protection features such as zero current switching avoidance, […]
DC-DC power IC converts 48 V to extremely low voltage
The HS200 is a dc-dc power IC that offers greater than 97% efficiency at 2.6 W and greater than 90% efficiency at 15 W. With no load, the HS200 consumes only 0.5 mW. Power can be pulled from any of its three outputs simultaneously up to 15 W. Efficiency is nearly flat from full load […]
Super-efficient 150-V synchronous buck-boost controller eliminates surge protection devices
Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LTC3779, a high efficiency (up to 99%) 4-switch single inductor synchronous buck-boost DC/DC controller that operates from input voltages above, below or equal to the regulated output voltage. Its 4.5V to 150V input voltage range is designed to operate from a high input voltage […]
Buck-boost battery charge controllers support Type-C and USB Power Delivery
Texas Instruments introduced a pair of highly flexible, single-chip buck-boost battery charge controllers for one- to four-cell (1S to 4S) designs. The bq25703A and bq25700A synchronous charge controllers support efficient charging through USB Type-C and other USB ports in end equipment ranging from notebooks and tablets to power banks, drones and smart home applications. Learn […]
Synchronous, step-down DC/DC converter carries 36-V/2-A power switches, PWM generator
Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LT3932, a monolithic, synchronous, step-down DC/DC converter with internal 36V, 2A power switches and an internal PWM generator. Its fixed frequency, peak current mode control accurately regulates current within ±1.5% for strings of up to 2A LEDs. Its integrated PWM generator offers a 128:1 […]
High-power fixed-ratio DC/DC controller eliminates power inductor in non-isolated intermediate bus converters
Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LTC7820, a high power fixed ratio charge pump DC/DC controller that eliminates the power inductor in a non-isolated intermediate bus converter, allowing up to a 50% reduction in circuit size and up to 4000W/in³ power density. The LTC7820 drives external MOSFETs in voltage divider, […]
150-V synchronous step-down dc/dc controller eliminates external surge protection devices
Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LTC7801, a high voltage nonisolated synchronous step-down switching regulator controller in compact 24-lead packages that drives an all N-channel MOSFET power stage. Its 4V to 140V (150V abs max) input voltage range is designed to operate from a high input voltage source or from […]
IEEE 802.3bt PD controller offers 99 percent efficiency
Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LT4294 IEEE 802.3bt Powered Device (PD) interface controller for applications requiring up to 71W of delivered power. This new Power over Ethernet (PoE) standard – IEEE 802.3bt – increases the power budget to enable new applications and features, while supporting 10 Gigabit Ethernet (10GBASE-T) […]
Galvanically isolated single-channel gate driver ICs support IGBT blocking voltages to 1.7 kV
Power Integrations announced an expansion of its SCALE-iDriver™ family of galvanically isolated single-channel gate driver ICs. The new devices support IGBT blocking voltages up to 1700 V, which are generally used in 400 VAC and 690 VAC line applications. They are also ideal for the latest three-level topology photovoltaic inverters and for photovoltaic arrays leveraging […]