Battery charge controller and DC-DC in one package

[Boomerang]

Is there one IC to solve the two problems: Lithium ion cell babysitting and generating from it stable DC power output?

What I need is really small output power ( < 0.5 W ) and charging from standard 5V USB connector.

[cyberfish]

Is there one IC to solve the two problems: Lithium ion cell babysitting and generating from it stable DC power output?

What I need is really small output power ( < 0.5 W ) and charging from standard 5V USB connector.

What do you mean by babysitting? If you just mean charge and terminate charging correctly, there are many options. Eg. MCP73831

If you need things like over-current and over-temp protection, maybe even coulomb counting, you'll have to look for a battery management chip - http://www.ti.com/lsds/ti/power-management/battery-management-products-overview.page

Those are a lot more complicated.

[Boomerang]

Charging (start, stop), overcurrent protection, deep discharge protection and that's all. I don't need coulomb counting, capacity or wear level measurement and etc...

[grifftech]

buy a cheap power bank and use the board from it.

[mvdswaluw]

buy a cheap power bank and use the board from it.

Not one chip, but have you considered looking at a Adafruit powerboost?

[Fungus]

You want to manufacture hundreds or do you just need a handful?

If you only need a handful then eBay is full of modules, eg: http://www.ebay.com/itm/122217973743

[cyberfish]

Charging (start, stop), overcurrent protection, deep discharge protection and that's all. I don't need coulomb counting, capacity or wear level measurement and etc...

I don't think I have seen a chip that does charging and also monitoring. There is always a one-chip solution though - use a microcontroller.

[trophosphere]

I don't think I have seen a chip that does charging and also monitoring. There is always a one-chip solution though - use a microcontroller.

This one from Linear is the only one I was able to find that does charging and has a over discharge disconnect functionality.

In regards to the original poster, the bq2501x Series from TI has lithium ion charging and a built-in DC-DC buck converter. No protection from over discharge built in though.

[Boomerang]

In regards to the original poster, the bq2501x Series from TI has lithium ion charging and a built-in DC-DC buck converter. No protection from over discharge built in though.

Thanks a lot! This is exactly what I'm looking for! I spend hours of searching on TI web site and didn't found it...