DC-DC power conversion

STMicroelectronics

The B-G474E-DPOW1 Discovery Kit is a complete digital power development platform built around an STM32G4 MCU. It features an onboard buck-boost converter (with selectable internal or external input and resistive load bank) and a high-brightness RGB LED, allowing developers to evaluate DC-DC conversion and LED lighting control designs. A Class-D audio amplifier circuit is also included to demonstrate digital power in audio applications. The kit provides rich user interface and connectivity, including four user LEDs, a 4-direction joystick, a USB Type-C™ port supporting USB Power Delivery 3.0, a Micro-USB port (for ST-Link), and extension headers for additional peripherals.

STMicroelectronics

The STEVAL-3601CV1 demonstrates a smart converter design able to deliver up to 1A output current from a 3.3 to 36V input, with a 5V output voltage. The board features the DCP3601 miniaturized synchronous step-down converter, which implements enhanced peak current control and advanced design circuitry to minimize quiescent current. The board demonstrates how highly efficient conversion can be achieved with just the DCP3601, an inductor, two small capacitors, and two resistors.

 

The board highlights key application benefits made possible by the DCP3601, including high efficiency and small PCB size, and is ideal for power conversion solutions in major appliances, smart metering, industrial 24V BUS conversion and general-purpose wide power supplies.

Monolithic Power Systems

The EVM82504-BH-03A evaluation board demonstrates the capabilities of the MPM82504, which is a fully integrated, high-efficiency, synchronous, 16 V quad 25 A, step-down power module. The MPM82504 can be paralleled to provide 50 A, 75 A, or 100 A of output current.

The MPM82504 offers dual input supplies as a simple solution for applications such as PCIe cards. The board can be configured easily to select between one or two input rails, depending on the power required by the application.

Compared to existing methods using O-ring circuits, the MPM82504 achieves higher efficiency as well as lower size and cost. The MPM82504 supports active current balancing with ±10% input voltage tolerance and tolerates uncontrolled input voltage start-up sequences.

Renesas

The RTDTTP4200W066A 4.2kW bridgeless totem-pole power factor correction evaluation board enables highly efficient single-phase AC/DC conversion using the latest Renesas Gen IV Plus SuperGaN® FET. The TP65H030G4PWS is a diode-free GaN FET bridge with low reverse recovery charge.

Power Integrations

The RDK-919Q is a development board for the INN3949CQ, a member of the InnoSwitch3-AQ family of power conversion ICs. Operating from an input-voltage range of 50 V to 1000 V dc, ideal for use in 800 V bus systems, the board provides an isolated power supply for loads of up to 60 W, at an output voltage of 24 V. Conversion efficiency is 82%. 

The RDK-919Q works in hot conditions: at 85°C, it can provide a continuous 20 W output with an input at 1,000 V dc. 

The board offers all the benefits of secondary-side control with the simplicity of primary-side regulation: it is insensitive to transformer variation, and provides extremely fast transient response which is independent of load timing. The maximum output ripple voltage is 240 mV.

 

Monolithic Power Systems

The EV06W0503A-3-Y-00A is an evaluation board designed to demonstrate the capabilities of the MID06W0503A-3, a semi-regulated, isolated DC/DC converter. The MID06W0503A-3 supports a 3 kVDC isolation voltage.