ADP2300-EVALZ

The ADP2300-EVALZ evaluation board is designed to evaluate the performance of Analog Devices ADP2300 and ADP2301 synchronous buck controllers in a DC/DC & AC/DC (Off-Line) switching regulator application. It is constructed with a U-shaped PCB with two breakouts on the side for access to the necessary connection points to power up the board.

The board uses the ADP2300/ADP2301 integrated circuit to regulate voltage levels. These ICs comprise an internal digital PWM generator and dead-time control mechanism that facilitates “soft-start” and voltage ramping, thus minimizing in-rush current. The ICs also include functions such as adjustable over-voltage protection, adjustable UVLO, power-good output and thermal shutdown.

For safe operation, the ADP2300-EVALZ evaluation board implements a double voltage regulator configuration with a low-dropout linear regulator. The ADP2300/ADP2301 ICs can be powered from a wide input voltage range of 4.5 to 28 V, and includes an onboard 2.5V reference voltage. A (non-inverting) MOSFET gate driver circuit is employed to drive the two N-channel power MOSFETs used in the outputs. Both the high- and low-side gates are driven using the same MOSFET terminal, allowing for both to be gated with the same signal.

The output has an adjustable output current adjuster adding to the versatility of the board. This current adjuster is in the form of a variable current source which increases current consumption as the output voltage increases. This feature allows the evaluation board to provide its full rated output power with any given load. Moreover, the onboard capacitors provide good filtering capabilities and energy-storage capabilities for increased efficiency.

The ADP2300-EVALZ evaluation board integrates a built-in graphical user interface as well as a dedicated GUI software. The user interface enables quick, convenient configuration monitoring and adjustment of various parameters via the PC connection. This board also includes several LEDs that indicate system activity, as well as a jumper that allows the user to switch between different operating modes.

In summary, the ADP2300-EVALZ evaluation board is an excellent solution for evaluating the performance of Analog Devices ADP2300 and ADP2301 synchronous buck controllers. Its wide voltage input range, onboard 2.5V reference voltage, adjustable output current adjuster, onboard capacitors, graphical user interface, and dedicated GUI software make it the ideal choice for DC/DC & AC/DC (Off-Line) switching regulator applications.