As this driver is not longer available I stepped into it and designed my own 17mm Driver
I completely went from scratch just taking the same Max16820/16819 Chip,
Attiny13A MLF10 went to MLF25 Attiny 25/85 for more features and programming space
6mm spring pad to fit common BLF springs, where the MTN had 5mm
I also found that on many cases the 16819 is far better to get a relative low switching frequency
The 16820 is designed for 2Mhz the 16819 has with same values only 666kHz
Using the formulas from the data sheet to optimize part values on 3 examples
I have made here a BLF topic
It is an interest list to see how much parts I order from mouser beside from prototype ones
The design is with 2/4 Input capacitors and 1/2 3A fly back diodes depending on the output current