Lithium ion charger IC

[bastiaang]

Hello guys!
New topic from me, I have a question about lithium ion charger IC. My first post here was about the LCR measurement device we are working on.
Right now I have selected a microcontroller (ATxmega128A3U) but I am a bit stuck on the BMS. 
The battery that we will be using is a 18500 lithium ion (Samsung ICR18650-26).
Therefor I have come up with some requirements: 
- Need for some kind of communication between the uC and the BMS (SPI, I2C, etc.)
- Buildin output regulator, like a buck convertor or regulator (the system runs on 3,3 Volt)
- 1 lithium cell controller
- input will be 5 volt (USB)
- output current will not be higher than 300mA

If it has some kind of LED interface, that would be great but it is not a must. 
I already have looked at Maxim and TI. But it is possible that I didn't searched well.

So guys can you please help me the right battery management IC. Any tips are also welcome.

[Zucca]

https://dlnmh9ip6v2uc.cloudfront.net/datasheets/Prototyping/TP4056.pdf

not sure if it helps... it's just a simple USB lion charger, with LEDs.

BMS to me is a protection circuit for lion, not sure why you want to communicate to it with a µC.

Confused.

[bastiaang]

https://dlnmh9ip6v2uc.cloudfront.net/datasheets/Prototyping/TP4056.pdf

not sure if it helps... it's just a simple USB lion charger, with LEDs.

BMS to me is a protection circuit for lion, not sure why you want to communicate with it with a µC.

Confused.

You are right I want a battery charger with a regulated output of 3,3 Volt. 
The communication with the uC is to program different kinds of charge currents.
I will charge via mini USB, and I want to do that with different kinds of wall adapters.
Then you got two options, or you take a battery charger with USB interface, or you take a battery charger without but you get the current information of the uC.

The battery charger you send isn't sufficient sadly. The output needs to be regulated outside this IC. 

[SiliconWizard]

You should take a look at the so-called PMIC ICs, there are many on the market. Some have an integrated battery charger, and various voltage output options including buck, boost and LDOs.

Examples:
http://www.ti.com/power-management/battery-management/charger-ics/products.html
http://www.analog.com/en/parametricsearch/11451

[Koen]

Complete Linear Battery Charger with variable Integrated Buck Converter, 10 pins :

http://www.analog.com/en/products/ltc4080.html

[bastiaang]

I have found this one LTC3556 . But will the switch frequency disturb the ADC of the microcontroller?
Thanks for the replies so far guys!