The PT4212AESOH is a RoHS compliant 8-pin SOP (Small Outline Package) LED Driver, manufactured by CR-PowTech. This LED Driver IC has a wide input voltage range of 4.5V to 18V and a wide dimming frequency range of 250Hz to 20kHz. It has an output current up to 120mA and a maximum output voltage of 27V for constant current LED lighting applications. The PT4212AESOH has been designed to work well with switch power supplies for dimming control applications. It features high efficiency, low EMI noise, and an internal hysteresis waveform control for improved response stability. This ultra-compact LED Driver IC is also RoHS compliant and suitable for a wide range of LED lighting applications.