DC-DC Converters are one of the most critical components of integrated circuits used in power electronics equipment. The need for DC-DC Converters is rising as electric and hybrid vehicles become more widely used. The development of DC-DC Converters is being accelerated by new technologies including high-power WBG semiconductors and bi-directional power supplies. In this article, everything PE has listed some interesting DC-DC Converters that were trending on the website.
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3 W Isolated DC-DC Converters for Test & Measurement Applications
The CCG3 Series from TDK Corporation are Isolated DC-DC Converters that step down a DC input voltage from 4.5 - 76 V to a DC output voltage of 3.3 - 30 V. They deliver an output power of up to 3 W and have an efficiency of up to 85%. These step-down converters offer a high isolation voltage of 1500 V and are available in multiple configurations. They are enclosed in a metal case with 6-sided shielding for lower noise and are encapsulated for rugged shock and vibration. These IEC 62368-1 certified converters are available in through-hole and surface mount packages and are ideal for data and telecommunications, test & measurement, process control, broadcast, and battery-powered equipment applications. Read more.
Programmable Step-Down Converter for Military Applications
The ACT41000 from Qorvo is a Programmable DC-DC Converter that steps down a DC input voltage of 4.5-40 V to a DC output voltage of 3-24 V. This buck converter is integrated with high-side and low-side MOSFETs. It consists of a precise 256-step current limit that enables an MCU to detect precise quiescent drain current by eliminating a current sensor IC. This buck converter uses its on-chip oscillator clock with spread-spectrum or an external clock to perform synchronization. It has a built-in iDAC for bias detection and automatic system-level bias threshold trigger features. This converter is available in a surface-mount package that measures 5 × 5 mm and is ideal for radar, satellite communication, electronic warfare, power amplifier, and continuous-wave RF applications. Read more.
Synchronous Voltage Mode DC-DC Converter
The SP7662 from MaxLinear is a Synchronous Voltage Mode DC-DC Converter that steps down an input voltage of 5 to 22 V to an output voltage of 0.8 to 20.2 V. This step-down converter has an efficiency of 93% and delivers a constant output current of 12 A. It has an in-built current limiting, UVLO, output short-circuit, and over-temperature protection circuitries. This buck converter has an enable function and soft start feature that allows controlled power-up sequencing implementation. It provides high efficiency, low ripple, and excellent line and load regulation. This RoHS-compliant converter is available in a 26-pin DFN package that measures 7 x 4 mm and is ideal for distributed power architectures, point-of-load converters, power supply modules, FPGAs, DSPs, and processor supply applications. Read more.
72 W Non-Isolated DC to DC Converter
The MYC0409 from Murata is a Non-Isolated DC to DC converter that steps down an input voltage of 20 - 60 V to a DC output voltage of 5 - 15 V. This buck converter is capable of delivering an output power of 72 W with an efficiency of up to 96.5% and has a continuous output current of up to 6 A. It can improve efficiency by minimizing parasitic resistance and has an open-drain power to provide good output. The converter can be used in a system without loop compensation and is integrated with over-current and over-temperature protection circuits to assist during abnormal conditions. The MYC0409 is available in a surface-mount package that measures 11.5 × 9.5 × 2.0 mm and is ideal for data centers/servers, networking equipment, base stations, optical equipment, test equipment, and LED signage applications. Read more.
1300 W Isolated DC-DC Converter for Datacom Applications
The BMR491XX02/853 from Flex Power Modules is an Isolated DC to DC Converter that steps down input of 40 - 60 V to a DC output voltage of 12 V. It delivers an output power of up to 1300 W and has an efficiency of 97.2 % at half load conditions. The converter has an output current of up to 108.3 A and consists of output over-voltage and short-circuits protection circuits in conjunction with over-temperature protection circuit. It can be operated using a monotonic start-up function and can be remotely controlled by the PMBus interface. This 9001/14001 certification is available in a quarter-brick package that measures 58.4 x 36.8 x 14.5 mm and is ideal for datacom applications. Read more.
Radiation Hardened DC-DC Converter for Space Applications
The RH5210 from Mercury Systems is a Radiation Hardened DC-DC Converter that is specifically designed for radiation-sensitive applications and platforms such as satellites and launch vehicles, remote-controlled robotic devices, mission-critical computing systems, and any electronic systems with the potential for radiation exposure. It consists of 8 integrated rad-tolerant switching regulators and 3 LDO regulators. The converter is based on Xilinx’s radiation-tolerant FPGA XQRKU060 and is an ideal solution for SwaP-focussed applications. It is available as a die that measures 51 x 63 mm. Read more.
3.3 V Synchronous Buck DC-DC Converter
The BD8967FVM from ROHM Semiconductor is a Synchronous Buck DC-DC Converter that converts an input voltage of 4.5 - 5.5 V to an output voltage of 3.3 V. It has an output current of up to 0.8 A and a switching frequency of 1 MHz. This synchronous buck converter is integrated with a FET that offers high switching efficiency. It provides a fast transient response to sudden load changes by implementing current mode control. This step-down converter has a soft-start, thermal shutdown, and UVLO functions and incorporates short-circuit protection with a time delay function. It is available in a surface-mount package that measures 2.9 x 4 x 0.9 mm and is ideal for applications such as power supply for LSI including DSP, microcomputer, and ASIC. Read more.
3.3 V Buck Regulator for Industrial Voltage Network
The 173950336 from Wurth Elektronik is a Non-Isolated Buck DC-to-DC Converter that steps down an input voltage from 4.75 - 36 V to an output voltage of 3.3 V. This converter has an output current of 0.5 A. It provides a switching frequency of 710 MHz and has an efficiency of up to 92%. This step-down converter consists of a controller IC, inductor, and capacitor. It also uses external input and output capacitors along with an input filter to deliver optimum performance. This RoHS and REACH-compliant converter provides an internal soft-start and current mode control feature to protect the circuit against over-current and over-voltage-related damages. It is available in a through-hole package that measures 11.6 x 7.55 x 10.16 mm and is ideal for interface and microcontroller supplies, a replacement for linear regulators, general purpose, and point-of-load DC-DC applications. Read more.
0.6 V Synchronous Buck Regulator for Automotive Applications
The AP61300Q from Diodes Incorporated is an Automotive Qualified Non-Isolated DC-DC Converter that steps down an input voltage from 2.4 V to 5.5 V to an output voltage of 0.6 V. This synchronous buck converter has a continuous output current of 3 A. It provides a switching frequency of 2.2 MHz and has an efficiency of up to 84%. This step-down converter consists of a 70 mΩ high-side power MOSFET and a 50 mΩ low-side power MOSFET to provide a highly efficient step-down DC-DC conversion. It employs pulse frequency modulation and pulse width Modulation techniques to offer a programmable operation mode using the enable pin. This AEC-Q100 qualified buck converter provides over-voltage protection, and thermal shutdown, and limits peak and valley currents to protect the circuit against overcurrent or short circuit-related damages. The AP61300Q is available in a surface-mount package and is ideal for automotive power systems, automotive infotainment, automotive instrument clusters, automotive telematics, and advanced driver assistance systems (ADAS). Read more.
6 kV Boost DC-DC Converter for High Voltage Applications
The HRC0524S350P from XP Power is a Boost DC-DC Converter that steps up an input voltage from 22 V to 30 V to an output voltage of 6000 V. This converter has an output current of up to 14.3 mA. It consists of an adjustable and well-regulated output voltage that can be controlled from 0 to 100%. This step-up converter integrates short-circuit, arc, and overload protection circuitries to offer protection against critical failures. It also has both input control and output monitoring signals that provide seamless digital compatibility. This RoHS-compliant converter is available in a PCB mount package that measures 2.55 x 1.30 x 0.60 inches and is ideal for mass spectrometry, electrophoresis, an electrostatic chuck, high voltage bias, capacitor charging, scanning electron microscopy, and detector applications. Read more.
30 V Buck DC-DC Converter for Datacom and High-Voltage Applications
The AOZ29303QI from Alpha & Omega Semiconductor is a Non-Isolated DC-DC Converter that steps down from an input voltage of 4.5 - 30 V to a DC output voltage of 0.8 - 5.5 V. It has a programmable switching frequency from 200 kHz to 1 MHz and has an efficiency of up to 93%. This converter provides an output current of 3 A. It allows configurable options using a few external components and allows the user to optimize the module for a wide variety of transient response requirements and output capacitance. This RoHS-compliant converter incorporates cycle-by-cycle over-current protection, short-circuit protection, over-voltage protection, and over-temperature protection circuitries to prevent over-load-related damages in the circuit. It is available in a surface-mount package that measures 9 x 6 x 3.7 mm and is ideal for use in industrial and commercial low-power systems, aftermarket auto accessories, networking datacom equipment, and high-voltage battery applications. Read more.
Point-of-Load Buck DC-DC Converter for Server & Computing Applications
The TDM3883XUMA1 from Infineon Technologies is a Point-of-Load Buck DC-DC Converter that steps down an input voltage of 4.5 - 14 V to an output voltage of 0.5 - 5.0 V. This converter provides a switching frequency of 800 kHz and has an efficiency of up to 90%. It integrates a PWM controller, multiple MOSFETs, and an inductor that results in a space-efficient and accurate power delivery solution. This converter can operate either in forced continuous conduction mode (FCCM) or diode emulation mode (DEM) during light loads to save power. It can enter a low quiescent current mode during ultra-light load conditions, thereby enabling efficient standby power supply devices. This RoHS-compliant converter is available in a surface-mount package that measures 2.7 x 3.1 x 2.3 mm and is ideal for distributed point-of-load power architectures, general DC-DC converters, communications infrastructure, storage, server, and computing applications. Read more.
Synchronous Buck-Boost DC-DC Converter for GPS & Portable Applications
The LTC3531-3 from Analog Devices is a Synchronous Buck-Boost DC-DC Converter that converts an input voltage of 1.8 - 5.5 V to an output voltage of 2 - 5 V. It delivers an efficiency of up to 90%. This DC-DC converter consists of two 0.5 Ω N-channel MOSFET switches and two 0.5 Ω and 0.8 Ω P-channel switches. It operates in burst mode to minimize solution footprint and component count while providing high conversion efficiency over a wide range of load currents. The DC-DC converter is equipped with a built-in current limiter, thermal shutdown, and output disconnecting function to prevent short-circuit-related damages. It is available in a surface-mount package that measures 3 x 3 x 0.75 mm and is ideal for PDA, GPS, MP3 players, handheld instruments, and handheld computer applications. Read more.
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