Power management and switching

Vishay

The SiC951EVB-A reference board from Vishay enables a design engineer to evaluate the features and functions of the SiC951 microBRICK® dc-dc regulator module. It also serves as a reference board design for use in applications. 

The SiC951 is an integrated module which requires no external inductor, and only minimal additional components. Compliant with the PMBus 1.3 signaling protocol, this non-isolated buck regulator with integrated MOSFETs and inductor is housed in a 10.6 mm x 6.5 mm x 3 mm package. The regulator supplies a continuous output current of up to 25 A, and 30 A peak. 

The output voltage is digitally adjustable in a range from 0.3 V to 5.5 V from a 4.5 V to 20 V input. The regulator operates at switching frequencies up to 1.5 MHz. The architecture of the SiC951 provides a very fast transient response with minimum output capacitance and tight regulation over a broad load range. 

The SiC951 has integrated internal compensation and is stable with any type of output capacitor. It incorporates a power-saving scheme which substantially increases light-load efficiency. 

The SiC951 allows configuration programs to be stored in non-volatile memory. Operating parameters such as output voltage and output current can be locally stored and used to determine fault behavior. Configuration is firmware-based and field-upgradable.

STMicroelectronics

The STEVAL-PMIC25V1 from STMicroelectronics is a power management IC (PMIC) evaluation board for the highly integrated STPMIC25. This PMIC manages the power requirements of the core, memory and interfaces of the STM32MP2x series microprocessors and other applications microprocessors.

The kit includes a USB dongle, which provides access via I2C interface to the configuration registers of the STPMIC25, where voltage settings, power sequences, protection thresholds and other parameters can be set.

The board includes header connectors for external access to the embedded regulators and switches in the PMIC, as well as internal routing via jumpers to satisfy any physical configuration requirements.

The passive components on the board are chosen for optimal performance across most operating conditions. Three push buttons and digital I/Os allow the engineer to trigger the digital controls of the PMIC.

Power Integrations

The RDK-1002 from Power Integrations is a reference design kit which facilitates development with the InnoSwitch™5-Pro family of flyback switcher ICs. It implements a USB Power Delivery 3.1 extended power range (EPR) power supply supporting loads up to 140 W. It operates from an input-voltage range of 90 V to 265 V ac, and achieves conversion efficiency of up to 95%. It supports variable output voltages in a range from 5 V to 28 V.

 

onsemi

The NCD57252 evaluation driver board enables evaluation of the NCD57252, a high-current gate driver which can directly drive two independent IGBTs in any configuration. The driver provides 5 kVrmss of internal galvanic isolation from input to each output and functional isolation between the two output channels. 

Diodes

This demonstration board uses the AL17052, a buck converter IC operating from a universal mains input voltage, to build a cost-effective solution for high-voltage buck converter applications. The AL17052 integrates a 700V MOSFET and can work with a single-winding inductor and very few external components to provide an accurate constant-voltage output and good dynamic performance.

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