LM26480SQ-AAEV/NOPB

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The LM26480SQ-AAEV/NOPB is an evaluation board for evaluating the performance of a DC/DC and AC/DC (Off-Line) System Module Power Supply (SMPS). This board utilizes a Texas Instruments LM26480 high-current Step-Down DC/DC power supply controller IC specifically designed for use in high-current, power-factor corrected (PFC) synchronous boost topologies. The LM26480SQ-AAEV/NOPB yields a scalable high-current design solution with output voltages from 1.6V to 24V, with a maximum power rating of 30W. It provides accurate regulation and excellent load and line transient response and is optimized for low-power standby operation.

The SMPS controller IC is connected to a heat sink, which is then connected to the power module. The power module houses two power MOSFETs in a bridge configuration. The power MOSFETs are connected to one another in a parallel connection, as the FETs are responsible for driving the output current. These output current levels can be adjusted with the use of a feedback circuit, which monitors the output current and controls the operation of the power MOSFETS.

Furthermore, the board is accompanied with a DIP switch, which provides an insulated path to select the operating parameters of the SMPS. This allows for easy adjustment of the parameters without the need for external components. The board also features status LED indicators for monitoring the state of the SMPS, and has built-in protection features to protect it from overloads and short-circuits.

The board also utilizes a boost converter with PFC, which provides the high efficiency needed for the SMPS. The PFC circuit is designed for input voltages from 9V to 36V, and is able to provide up to 15W of efficiency. The board also includes a low-noise LDO, which adjusts the internal power supply reference voltage and provides stability to the output power.

In conclusion, the LM26480SQ-AAEV/NOPB is an optimal choice for an evaluated board for use in DC/DC and AC/DC (Off-Line) SMPS. It provides an easy way to adjust the parameters of the SMPS and offers protection from overloads and short-circuits. It is designed to provide excellent power conversion efficiency, with up to 15W of efficiency at 5V output, and is capable of operating from 9V to 36V input. In addition, it has a low-noise LDO to provide stability to the output power. This in turn makes it a great board for evaluating the performance of an SMPS.

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