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  1. R

    Tantalum capacitors Vs. Aluminium capacitors for synchronous switching converter input pin.

    I'm using the LM5166 (Fixed 5V) version, the data sheet suggests to use a tantalum or aluminium capacitors for the input capacitor. The data sheet says that the capacitors is selected mainly because of its RMS current rating and Voltage rating. A higher capacitance just helps in case there's a...
  2. R

    Pad size too small.

    Can't route from the 'IN' pad of the MP2672A li-ion battery charger IC. The pad is too small. How to fix this? I'm worried if the footprint itself is wrong.
  3. R

    Setting up a Common Anode Dual LED with one reference point.

    I want to use a dual LED in my schematic. The dual LED used is common anode. The LEDs should be controlled by a single pin from a battery charger IC. At one event the pin is pulled low, LED 1 should be ON. At another event, the pin open-drained. I've connected a 10k ohm resistor from my common...
  4. R

    Power ground, control ground routing

    I want to use the TPS63002 for a project. This IC has two ground pins, power ground and control ground. I understand that the power ground is a return path for the high current switching transistors and the control ground is a reference for the error amplifiers and other digital logic stuff. But...
  5. R

    power

    If I wanted to connect two 4S Lipo batteries, with unequal charges in parallel, and get a constant output voltage, with minimal heat dissipation, how would I do this?
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