Adjustable boost regulator

Joe Morris

Other Parts Discussed in Thread: TPS61080, TPS61045

I am looking for an adjustable boost regulator runs off of a VBUS input (@5V) and will have an output of 6V to 8V. The regulator will drive primarily an LED load that will often be off, but can have currents up to 50mA. I tried the TPS61080 demo board, setting the output voltage to 6V. Using a resistive load of 650 ohms it seems to work fine, with very light loads the output voltage is @ 10V. If this not the best part, can you recommend one? Here are some other requirements:

-- Need active high enable pin that set the output to 0V.

-- Max current of 50mA

-- Very stable output voltage with input variation from 4.8 to 5.2 V

-- Eficiency and footprint not too critical.

Thanks for your help,

Joe Morris

919-747-3668 x1010

over 10 years ago

0 Helen chen over 10 years ago

TI__Mastermind 40080 points

Hi Joe,

You mentioned that: Need active high enable pin that set the output to 0V. I can't unsderstand clearly for this item, is that mean you hope the output is 0V when the IC is disabled by EN pin.