Jan mentioned
elsewhere that a higher-output SilentSwitcher is in the horizon. The design has been ready for some time but unfortunately due to the global component shortage and price increases the manufacturing of these boards is not currently feasible.
There is also a new improved "SilentSwitcher". It has LT3045/LT3094 regulators for lower noise at +/-15V and a new low voltage converter (5V5/5V/3V3 output) which allows up to 15V input voltage. So even freshly charge 12V batteries can be used as power source. However the output current is about the same as in the original SilentSwitcher (200mA at +/-15V). The output connectors have been doubled for added flexibility. The default low voltage output is now 5.5V so it can directly be used as input for local LDOs such as LP5907. The board has the same mounting pattern as the original SilentSwitcher so it can be used in Jan's Autoranger.
View attachment 1026275
Noise of the +/-15V outputs is about as low as LT30xx datasheets predict. Here is the +15V noise with 100R||100uF load.
View attachment 1026276
Whether or not ultra-low noise power supply is needed depends on the application. Applications dealing with low-level signals such as phono preamps or LNAs will surely benefit from low noise supply.
There is a currently a limited quantity available of these boards primarily for Jan's Autoranger kits.
Martti
