This ULN2003A Darlington Transistor Array is known for its high-current capacity that can be used in driver circuits for relay, lamps, and stepper motors. This chip is very suitable for your project and other general purpose applications. 

Specifications

• Input Voltage (max): 5 V
• Operating Temperature Range: - 20 ° C to + 70 ° C
• Number of Pins: 16
• Transistor Type: Power Darlington
• Maximum Current: 500 mA
• Output Voltage: 50 V
• Package Type: DIP