LEDs and Multiplexing
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Jun 25, 2012, 07:03 pm
Is there another IC like the TPS92550? It has a built-in inductor, flyback diode, driver, and output capacitor. I'd like to design my circuit around this chip but I'd like to have a back up option if the part is out of stock.
450mA 14W Constant Current Buck LED Driver Micro-Module
Jun 26, 2012, 09:30 pm
I personally love the CAT4101:
Jun 26, 2012, 09:32 pm
(and it's a lot cheaper)
Jun 26, 2012, 09:55 pm
Yup - it's a winner. For lower power stuff, look at their CAT4109.
I've been driving ~10W here:
They're efficient enough that I put THREE of them on a 5cmx5cm board with only a solid GP and a small heatsink each. Very small. Like the kind used for ram.
Jun 26, 2012, 11:14 pm
That's a linear regulator but it works for me. The CAT4101 seems like it would be difficult to source. The TLE4309 is looking good for me right now.
Jun 27, 2012, 04:02 pm
I've had good luck with the A6260. If you're looking for something with more power someone else on the board had used a STCS1 (up to 1.5A) and that chip looks pretty common.