Recently, Advanced Analogic Technologies, Inc. (AnalogicTech(TM)), a developer of power management integrated circuits, announced the AAT3104 and AAT3195, two new 4-channel, charge pump-based LED drivers for larger LCD screens in reduced feature set cell phones and portable systems. Available in compact 2 x 2.1mm packages, the devices offer designers 16-step, 32-step or PWM current control in a space-saving footprint.