LT3045
Recommended for New Designs
The LT3045 is a high performance low dropout linear regulator featuring LTC’s ultralow noise and ultrahigh PSRR architecture for powering noise sensitive...
Datasheet
LT3045 on Analog.com
LT3094
Recommended for New Designs
The LT3094 is a high performance low dropout negative linear regulator featuring ADI’s ultralow noise and ultrahigh PSRR architecture for powering noise...
Datasheet
LT3094 on Analog.com
AD8336
Production
The AD8336 is a low noise, single-ended, linear in dB, general-purpose variable gain amplifier, usable over a large range of supply voltages. It features...
Datasheet
AD8336 on Analog.com
Hi,
The LT3045 used in my product output abnormal.
The 16 pieces of LT3045 was used in my product, which convert the +4.2V to +3.3V. The 16 pieces of LT3094 was used in my product, which convert the -4.2V to -3.3V.. The LT3045 and LT3094 supply power to 128 pieces of AD8336.
Thank you for your post. A Schottky on the LT3045 OUT=OUTS will prevent OUT=OUTS from being pulled-down and will allow the LT3045 to start reliably. Your schematics look o.k. otherwise.
Add the Schottky as I indicated in my last post's image. I am not sure why the behavior is not consistent. Part to part behavior may be a little different for this condition. The LT3094 does not require Schottky diodes since its output can be pulled up above ground with no problem. 
