Q1.The LTC2662 has 5 current sources. If I only use 4, can another VDD not be connected?
Q2.Is the VDD supply voltage operating at 3.3V and the current output to 300mA?
Q3.Can VDD and VCC be connected to the same voltage?
Q4.If the VDD supply voltage changes from 3.1V to 3.5V, will it affect the output current?
Q5.The load is about 10 ohms. Can the LTC2662 output to 300 mA?
Thanks for your help.
1: You should always connect all Vdds for proper internal biasing. You can shut down that channel with the SPI.
2: Yes, but the dropout will be up to 1.75V
4. No, do you mean a dynamic change while…
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4. No, do you mean a dynamic change while the part is running?