LINEAR Manuals

Introduced the LTM8031 low noise DC/DC step-down µModule regulator that operates from input voltages from 3.6V to 36V and is independently certified to be compliant with the stringent requirements of EN55022 class B.

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This document introduces a battery aging management method that can significantly extend battery life.

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This document describes a robust, quiet, stable power supply for active antenna systems in automotive infotainment systems, with built-in protection and diagnostic capabilities. It also discusses the various active antenna systems used in current automotive infotainment systems and mentions the innovative LT3050 regulator product.

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The LTC2262 family is a new generation of ultralow power, high-speed analog-to-digital converters (ADCs) that dissipate less power while maintaining excellent AC performance compared to previous generation ADCs. These ADCs are suitable for power-limited applications, allowing the addition of features and improvement of performance within the power budget. Additionally, the LTC2262 family incorporates a unique set of digital output features that simplify layout and reduce digital feedback. The low power core is also integrated into multichannel parts, including 4-channel and 2-channel ADCs. For a complete list of the ultralow-power ADC family, refer to Table 1.

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Introduces the characteristics and features of two low-power regulators LT3971 and LT3991, including low quiescent current, adjustable output frequency, wide input voltage range, etc.

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The LTC6801 multicell monitor IC can detect overvoltage and undervoltage conditions of up to 12 series connected cells, and provides short circuit protection

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This document introduces the features and characteristics of the LT3029 product. The LT3029 is a monolithic LDO that integrates two independent 500mA regulators. It has a wide input voltage range of 1.8V to 20V and a dropout voltage of 300mV at full load. The output voltage can be adjusted to 1.215V reference voltage. With an external bypass capacitor, the output voltage noise is less than 20µVRMS. Each channel requires a minimum of 3.3µF ceramic output capacitor to be stable. The quiescent current is 55µA per channel and drops below 1µA in shutdown. Reverse-battery protection, reverse-current protection, current limit fold-back and thermal shutdown are all integrated into the package, making it ideal for battery-powered systems.

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This article introduces a new wireless power solution that can harvest ambient mechanical, thermal or electromagnetic energy from a sensor's local environment, eliminating the need for batteries in wireless sensors. This solution uses a piezoelectric transducer to convert mechanical vibration energy into electrical energy, which is then stored in a usable energy reservoir.

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More accurate battery gauging can be achieved by monitoring not only the battery voltage but also by tracking the charge that goes in and out of the battery. For applications requiring accurate battery gas gauging, the LTC2941 and LTC2942 coulomb counters are tiny and easy-to-use solutions. These feature-rich devices are small and integrated enough to fit easily into the latest handheld gadgets. The LTC2941 is a battery gas gauge device designed for use with single Li-Ion cells and other battery types with terminal voltages between 2.7V and 5.5V. A precision coulomb counter integrates current through a sense resistor between the battery’s positive terminal and the load or charger. The high side sense resistor avoids splitting the ground path in the application. The state of charge is continuously updated in an accumulated charge register (ACR) that can be read out via an SMBus/I2C interface. The LTC2941 also features programmable high and low thresholds for accumulated charge. If a threshold is exceeded, the device communicates an alert using either the SMBus alert protocol or by setting a flag in the internal status register. The LTC2942 adds an ADC to the coulomb counter functionality of the LTC2941. The ADC measures battery voltage and chip temperature.

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This document introduces a 2MHz dual buck regulator that can deliver 3.3V and 1.8V from a 16V input without interfering with the AM radio band

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This document introduces the features and characteristics of LT3956 chip, including circuit principle, application scenarios, etc.

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This article introduces a 6mm × 6mm DC / DC controller for high current DCR sensing applications. The controller features temperature sensing and remote output voltage sensing, making it suitable for high current applications with input voltages up to 38V and output voltages up to 12.5V.

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This article introduces a Virtual Remote Sensing™ (VRS™) technology for improving load regulation at the end of long wiring runs by addressing voltage drops.

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This document describes the features and characteristics of the LT2940 power monitor, which can measure the power of a supply or load. It has a high-side current sense range of 4V to 80V, supports full 4-quadrant operation, has a bandwidth of 500kHz, and is suitable for 48V telecom power and intermediate bus voltages in the 5V to 24V range.

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The LTC3856 is a versatile and feature-rich single-output 2-phase synchronous buck controller with on-chip drivers, remote output voltage sensing, inductor DCR temperature compensation, Stage Shedding™ mode and active voltage positioning (AVP).

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This document introduces the LTC3619 and LTC3619B, two synchronous buck regulators with precise input current limits. These regulators can maximize input power usage while ensuring the stability of the input power supply.

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A method for fast time division duplex (TDD) transmission using an upconverting mixer with a high side switch is described.

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Introduces how to design the driving circuit of low noise, low distortion, 16-bit, 1Msps SAR ADC.

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This article introduces a new type of linear regulator that uses parallel operation to provide clean, efficient, high-current point-of-load power for FPGA and server backplanes. This regulator has a fast transient response, low output voltage noise, and low output voltage drop.

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