Schematic
The patent application includes this schematic:
The schematic is wrong!
/EN is connected to Vin. If it's truly NOT EN then I don't think it's going to work too well...
There is
another mistake the values of R1 and R2 are transposed if this is the LTC3526.
As shown the output voltage is
Vout = 1.195 (1 + R1/R2) = 1.195 (1+ 499/180) = 4.50V
If they are the other way:
Vout = 1.195 (1+180/499) = 1.626V
The minimum output voltage for the LTC3526 is 1.6V, another confirmation that this is probably the LTC3526.
Jay_Diddy_B