I'm building a LED workspace light spotlight which consists of ~60 LEDs which are arranged in parallel Groups of three serial LEDs (and a resistor per group of course). I'm using a supply voltage of 12V and those LEDs will draw a current of approximately 500mA.
I'd like to be able to dim the LEDs using a PWM controller, but I don't want to use a microcontroller (i.e. Arduino) but a dedicated PWM IC instead. I've been googling for some time now and so far I have found the TL494 IC which provides about 400mA max but it comes in a DIP-16 package and has a lot of options which I do not need, so it's a little oversized.
Essentially I'm looking for a PWM IC (DIP-8 preferred) with an adjustable duty cycle, which can be supplied by and can supply (as U_OUT) 12V. Does anyone know of an IC capable of this (and maybe has a schematic for wiring it)?