The LTC3649 is a high efficiency, 60V, 4A synchronous buck regulator that incorporates a constant frequency, current mode architecture and programmable output current and output voltage, which are set with a single external resistor. The LTC3649 operates from an input voltage range of 3.1V to 60V and provides an adjustable rail-to-rail output voltage range from […]
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LDO linear regulator delivers 500 mA output with 300-mV dropout at full load
Linear Technology Corporation announces the LT3066, a high voltage, low noise, low dropout voltage linear regulator offering precision, programmable current limit, active discharge, a power good flag and improved power supply rejection ratio (PSRR) capability. The device delivers up to 500mA output current with a 300mV dropout voltage at full load. The LT3066 includes an […]
Controller diode-ORs two supplies for hot swapping
Linear Technology Corporation introduces the LTC4236, a dual ideal diode-OR and single Hot Swap controller with a load current monitoring output. High availability systems-servers, network routers, and solid-state drives-power circuit boards with multiple power supply feeds. The LTC4236 combines (diode-ORs) two power supplies while providing inrush current control, overcurrent protection, and current monitoring, all in […]
Bidirectional supply gives continuous power during disruptions
Linear Technology Corporation introduces the LTC3643, a bidirectional, high voltage boost capacitor charger that automatically converts to a buck regulator for system backup. The proprietary, single-inductor topology with integrated PowerPath functionality does the work of two separate switching regulators, reducing size, cost and complexity. The LTC3643 operates in two modes – boost charge mode and […]
Step-Down DC/DC Converter sprots I²C-based PMBus interface
Linear Technology Corporation announces the LTC3815, a high efficiency 6A monolithic synchronous step-down DC/DC converter with an I²C-based PMBus interface for digital power system management (PSM). The LTC3815’s simplified and intuitive PMBus “Lite” command set makes it simple to use. The digital interface provides programming and read back of voltage, current, temperature and faults; all […]
Tiny Wireless NiMH charger-receiver chip targets hearing aids
Linear Technology Corporation introduces the LTC4123 to further expand its offerings in wireless battery charging. The LTC4123 combines a 30mW wireless receiver with a constant-current/constant-voltage linear charger for NiMH batteries, such as Varta’s power one ACCU plus series. An external resonant LC tank connected to the LTC4123 enables the IC to receive power wirelessly from […]
2.375 to 5.5-V step-down converter targets PoL, battery powered apps
Linear Technology Corporation announces the LTM4648, a 2.375VIN to 5.5VIN, 10A step-down µModule (micromodule) regulator in a 9mm x 15mm x 4.92mm BGA package with high operating efficiency and low temperature rise. With an integrated 5V boost converter to drive the gates of its N-channel MOSFETs from low VIN supplies, the LTM4648 improves efficiency and […]
Buck-boost DC/DC converter optimized for powering low-power wireless sensors
Linear Technology announces the LTC3106, a highly integrated, 1.6µA quiescent current 300mV start-up buck-boost DC/DC converter with PowerPath management, optimized for multisource, low power systems. The LTC3106 is ideal for powering low power wireless sensors from rechargeable or primary batteries supplemented by energy harvesting. The LTC3106 incorporates maximum power point control (MPPC) making it compatible […]
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 […]
5-W AutoResonant Wireless Power Transmitter detects foreign objects
Linear Technology Corporation introduces the LTC4125, a wireless power transmitter, complementing our wireless receiver ICs for the wireless charging market. The LTC4125 is a simple, high performance monolithic full bridge resonant driver, capable of delivering up to 5W of power wirelessly to a companion receiver. It functions as the transmit circuit component in a complete […]