Texas Instruments High-Performance Analog DC/DC & AC/DC (Off-Line) SMPS Evaluation Boards LM2661/3/4EVAL/NOPB

The LM2661/3/4EVAL/NOPB evaluation board is designed for testing and evaluating the LM2661, LM2663, and LM2664 CMOS charge-pump voltage converters. This board supports both voltage inversion and voltage doubling configurations, utilizing only two capacitors and a diode, which simplifies the design compared to inductor-based converters. The LM2661 can provide up to 100mA output current with a typical efficiency of 88%, while the LM2663 can deliver up to 200mA with an efficiency of 86%. The LM2664, on the other hand, is capable of inverting voltage with a maximum output of 40mA and an efficiency of 91%. The input voltage range for these devices is from +1.5V to +5.5V, making them suitable for various applications, including portable devices like cellular phones and medical instruments. The evaluation board includes features such as manual shutdown options and allows for external clock operation in certain configurations. The board is fully populated and ready for immediate use, making it a practical choice for engineers looking to prototype or evaluate these voltage converter ICs.