I'm using the LM27762 to generate +5 and -5 voltages and I would like to use WEBENCH to simulate performance with various capacitors and resistors, as mentioned on page 13 of the datasheet. When I choose LM27762 in WEBENCH (webench.ti.com/.../switching-regulator) it says "Sorry, we could not find LM27762". I also can't get it to find the part when I enter my input and output voltages. I would like to see the switching waveforms at my expected current load.
In the meantime, I'm trying to reduce the output resistance on the -5v output because I'm only achieving -4.6v at my load of 60mA. What is the value of Rsw to use in Equation 2? With no load current the voltage measures -5v, so I know the feedback resistors are correct.
My input voltage is 5.5v and I'm using these components:
R1 237k
R2 75k
R3 255k
R4 82.5k
C1 0.1uF (flying capacitor)
Cp. 4.7uF
