This document introduces the LTC6601-1/-2 and LTC6605-7/-10/-14, 3 precision matched baseband filter ICs that provide precision filtering performance in the 1.25MHz to 20MHz frequency range.
The LTC3855 is a synchronous buck controller from Linear Technology that can generate high current rails with the accuracy and efficiency to satisfy the most demanding requirements of today’s leading edge network, telecommunications and server applications. It features strong gate drivers that support operation with per-phase currents above 20A, an accurate 0.6V ±0.75% reference, and an integrated differential amplifier (diff amp) that allows remote sensing of the output of critical rails.
This design note introduces the LTC3890 high effi ciency dual output step-down converter that can produce 3.3V and 8.5V outputs from a 9V to 60V rail. This 50μA quiescent current device can produce two output voltages ranging from 0.8V to 24V when powered from an input voltage of 4V to 60V. The device features up to 99% duty cycle capability for low voltage dropout applications, adjustable soft-start or voltage tracking and selectable continuous, pulse-skip- ping or Burst Mode® operation with a no-consumption standby mode.
This document introduces a method of fast time division duplex (TDD) transmission using an upconverting mixer with a high side switch. This method achieves fast Tx switching by applying a power switch at the transmit upconverting mixer, which removes both the transmit signal and all other mixing products from the mixer RF output. This method has the advantages of low cost, good performance and power saving during the Tx off-time.
This document describes a dual output synchronous boost converter that solves thermal problems in harsh environments. By replacing the Schottky output rectifier with a synchronous MOSFET rectifier, power dissipation can be reduced, eliminating the need for heat sinks and reducing costs.
This is a design note about a low-power, direct-to-digital IF receiver. The receiver uses a variable gain amplifier + analog-to-digital converter (VGA + ADC) combination circuit that preserves the IF receiver dynamic range over a 31dB gain adjustment range and effectively demodulates and digitizes both the I and Q signals.
This document introduces a design scheme for a supercapacitor ride-through application that maximizes runtime using an energy scavenging scheme, improving runtime by 40%.
This document describes the features and characteristics of the LTC3856 single-output 2-phase synchronous buck controller, including light load stage shedding mode, active voltage positioning, low RSENSE, and remote VOUT sensing.
The LTC3633 is a high efficiency, dual output monolithic synchronous step-down switching regulator, capable of delivering 3A of output current per channel from input voltages between 3.6V and 15V. Its compact 4mm × 5mm QFN package has very low thermal impedance eliminating the need for an external heat sink. Its high input voltage capability makes the LTC3633 ideal for 12V distributed power systems.
This document introduces a supercapacitor-based UPS system that provides backup power during power failures to allow the RAID controller to write volatile data to nonvolatile storage.
The LTM4611 is a switch mode, step-down DC/DC µModule® regulator in a compact 15mm × 15mm × 4.32mm LGA surface mount package. The switching controller, MOSFETs, inductor and supporting components are housed in the package. With a built-in differential remote sense amplifier, the LTM4611 can tightly regulate its output voltage from 0.8V to within 300mV of VIN and deliver 15A output efficiently from 1.5V to 5.5V input.
This document describes a high power factor, isolated LED driver that does not require opto-isolators and is compatible with TRIAC dimmers. The LT3799 integrates all the required functions for offline LED lighting.
This design note explains how to create a compact battery charger using a small 2-cell solar panel to provide renewable energy charging for battery-powered sensors and other devices located far from the power grid.
