switching regulator

Analog Devices offers boost, buck, inverting, SEPIC, and buck-boost DC/DC converters. We also provide flyback, forward, and isolated controllers for isolated power supply designs. We offer application-specific regulators for DDR/QDR memory/bus termination and power supply ICs for LCD/CCD/OLED biasing, supporting our customers' system development with state-of-the-art power supply circuits for a wide range of applications.

DC-DC converter that achieves high efficiency of 97% in the 240W class using the latest technology

Flyback regulator that can use general-purpose transformer 

Plus/minus power supply design

Maximum output 100A! Large Current, High Efficiency, Small Power Supply Module LTM4700

List of products and technical articles related to power supplies

LTpowerCAD®

​^LTpowerCAD® is a power supply design tool that significantly reduces the effort required for power supply design. Using Analog Devices' power supply products, ^LTpowerCAD® selects devices according to your power supply specifications and automatically calculates recommended values for peripheral circuit constants. It can also perform efficiency calculations and optimize phase compensation circuits. Furthermore, ^LTpowerCAD® includes LTpowerPlanner for overall system power supply circuit configuration and optimization; please utilize these features.

 

Let's use the convenient design tool LTpowerCAD®!

 

LTpowerCAD® Download

LTspice®

LTspice XVII, provided free of charge by Analog Devices, is a high-performance SPICE-based simulator that can handle an unlimited number of nodes, and its simulation of switching regulators, in particular, is dramatically faster than when using a typical SPICE simulator.
In addition to a circuit and symbol editor and waveform viewer, it also features a rich library of passive components and macro models of approximately 2000 ADI products, enabling high-speed simulations such as steady-state detection, startup transition analysis, step response analysis, efficiency calculations, and power calculations.

 

Let's use LTspice®!

 

Download LTspice®

Battery management

Analog Devices battery chargers can be used with rechargeable batteries of all chemical compositions, including lithium-ion, LiFePO4, lead-acid, and nickel-based. In addition to charging batteries, the battery backup manager can instantly switch to the battery during system power outages, providing seamless backup power to the system.
The battery cell balancer features a proprietary level-shift SPI-compatible serial interface. Active balancing allows for capacity recovery of batteries with mismatched charge levels. Wireless charging solutions are also available.

current source

ADI's constant current source products offer products capable of supplying up to 3,000mA. It can be used for many applications such as high-precision analog circuits and LED drivers, and has built-in protection circuits against voltage, current, and heat, so you can design with confidence.

Energy harvesting

Analog Devices offers power management ICs that operate at ultra-low power consumption for energy harvesting applications. It has a function to charge batteries and storage elements with weak energy obtained from vibration, heat and sunlight, and a function to efficiently convert the power accumulated in the storage elements to the desired voltage and supply power to applications. .

Energy harvesting power management IC for IoT solutions

Application examples developed using power management ICs for energy harvesting

Inductorless (charge pump) DC/DC converter

ADI's charge pump products include step-down and inverting converters in addition to boost converters, and we have products that can obtain regulated output and products that can handle up to 500mA.

isoPower®

ISO Power ^® Devices that use proprietary technology i Coupler ^® By utilizing a chip-scale transformer, it integrates an isolated DC/DC converter and a data isolator into a single package, making it extremely easy to use. i Coupler ^® Isolation products using this technology are safe, reliable, and with over 1 billion channels shipped, they are ideal for replacing circuits using photocouplers.

LDO linear voltage regulator

Analog Devices' low-dropout (LDO) linear voltage regulators offer ultra-low dropout, fast transient response, and excellent line-and-load regulation characteristics, making them ideal for board designs with high power consumption and demanding voltage accuracy, such as those using FPGAs. Many LDO products also feature low noise and good PSRR characteristics, making them ideal for high-speed digital signal circuits and circuits requiring low-noise power supplies, such as analog and RF circuits.

Notes on Power Supply Sequence for FPGA (LDO Edition)

A method for using a linear regulator while suppressing heat generation.

LDO LT3045・LT3094 suitable for high-precision sensors and analog circuits

LED driver IC

We offer charge pump type or switching regulator-based LED drivers. In terms of topology, we have drivers compatible with boost, buck, buck-boost, and SEPIC, all of which achieve high efficiency. They enable series and parallel connections of various LEDs, and we offer products with analog and PWM input dimming capabilities, including a lineup that achieves 5000:1 dimming.

LED driver "LTM8042/LTM8042-1" with PWM dimming up to 1A and 3000:1

CN0410 Compact and Highly Functional LED Driver: ADI's Convenient Practical Circuit

Multi-function & PMIC

Products in this category, such as battery chargers, DC/DC converters, LDOs, and PowerPath, are offered as power solutions in various combinations, contributing to faster product development and reduced board area for our customers. Furthermore, PowerPath control enables seamless power switching between various input sources, including AC adapters, USB ports, and lithium batteries, ensuring a stable power supply to the system load.

ADP5072 with Independent Control of Positive and Negative Power Supplies

power controller

This category includes bridge drivers, fan speed controllers, offline controllers/PFCs, PCMCIA switches and drivers, PWM controllers, secondary side controllers, and VID voltage programmers.

Supercapacitor charger

This is an integrated circuit for charging supercapacitors (also known as ultracapacitors). Both linear and switching topologies are available for the charging circuit. It features various protection functions, such as input or output current limiting and automatic cell balancing, making it ideal for charging supercapacitors.

FAQ

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FAQ for power management products

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