Evaluation Board for LM22671 & LM22674, 0.5A SIMPLE SWITCHER regulators with Adj Vout, Adj Freq or Freq Synch, Precision Enable & Soft start

Description:

The LM22671 evaluation board is designed to demonstrate the capabilities of the LM22671switching regulator. The LM22671 evaluation board is configured to provide an output voltage of 3.3V up to 500 mA load current with an input voltage range of 4.5V to 42V. The typical operating frequency is 500 kHz. The evaluation board is designed to operate at ambient temperatures up to 50 °C.

At low input voltages between 4.5V and 6V, a minimum load of approximately 5 mA may be required to reach a regulated 3.3V output voltage.

To aid in the design and evaluation of DC/DC buck converter solutions based on the LM22671 switching regulator, the evaluation board can be re-configured for different output voltages.

Features:

• Input Range: 4.5V to 42V
• Output Voltage: 3.3V
• Output Current Range: 0A to 500 mA
• Frequency of Operation: 500 kHz
• Board Size: 1.5 X 1.5 inches
• Package: PSOP-8

Contents:

• LM22671 Assembled Evaluation Board
• Application Note 1895 for the LM22671 Evaluation Board
• LM22671 Datasheet

• AN-1930 - Application Note 1930 SIMPLE SWITCHER® Regulators Take Over Automotive Applications
• AN-1888 - Application Note 1888 LM22670 Evaluation Board Inverting Topology and Application Notes
• AN-1895 - Application Note 1895 LM22671 Evaluation Board
• AN-1896 - Application Note 1896 LM22672 Evaluation Board
• AN-1891 - Application Note 1891 LM22679 Evaluation Board
• AN-1894 - Application Note 1894 LM22673 Evaluation Board
• AN-1892 - Application Note 1892 LM22677 Evaluation Board
• AN-1885 - Application Note 1885 LM22670 Evaluation Board
• AN-1889 - Application Note 1889 How to Measure the Loop Transfer Function of Power Supplies