Texas Instruments NASDAQ: TXN, T-Mobile US NASDAQ: TMUS, and Target NYSE: TGT are three big-name firms in the United States that are giving income investors something to cheer about. All three recently announced dividend increases, helping boost the yield shareholders can expect to receive.  Despite relatively small boosts from Texas Instruments and Target, these two stocks are still some of the highest-yielding in the market. Meanwhile, T-Mobile is lifting its moderately above-average yield in resounding f ...