The L297 Stepper Motor Controller IC generates four phase drive signals for two phase bipolar and four phase uni-polar step motors in microcomputer controlled applications. The motor can be driven in half step, normal and wawe drive modes and onchip PWM chopper circuits permit switch-mode control of the current in the windings.
Brand: STMicroelectronics..

PUSH-PULL FOUR CHANNEL MOTOR DRIVER WITH DIODES
The L293 is an extremely popular Motor Driver IC (H-Bridge) for controlling DC and bipolar stepper motors. .

The L298 is an integrated monolithic circuit in a 15-lead Multiwatt and PowerSO20 packages. It is a high voltage, high current dual full-bridge driver designed to accept standard TTL logic levels anddrive inductive loads such as relays, solenoids, DC and stepping motors..

The ULN2003 is a Darlington array IC it can be used to drive Stepper and DC Motors, Relays, Solenoids, and other external circuits operating at high voltages and currents from simple CMOS logic signals from microcontrollers..

ULN2803 - EIGHT DARLINGTON ARRAYS, Brand: Toshiba.