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The SLS-HPULN (Regulators in Series, L-size, Single Rail) power supply offers a huge improvement on PSRR: Five LT3045 followed by another five LT3045 in series, resulting in an Ultrahigh PSRR of 2x76dB (up to 166dB) at 1MHz and so in the highest PSRR for a power supply on market.


The new version also benefits of "Low Acoustic Noise" capacitors (chosen for lowest leakage current, two in parallel for better ESR) in the SET-path of the LT3045 regulators to improve reference voltage, regulation precision and avoid piezo effect! A measuring point on the top of the PCB makes it now very easy to set the output voltage of the first regulation stage.


Anti-transformer-ringing snubber

The SLS-HPULN has a snubber option, which makes it possible to significantly reduce transformer ringing. Please see "Quasimodo PCB" for more information. In case of ordering this power supply with a transformer, the snubber will already be configured. In case it's ordered alone, the snubber can be set by the customer - we recommend to use the Quasimodo jig for that purpose.

The SLS-HPULN power supply can also be used without a snubber.


With a bigger heatsink mounted it is also capable to better dissipate heat from the regulators.


The scope of application is a main power supply for any kind of sensible devices with a need of up to 2,5 ampere, i.e.:

- Audio interfaces

- DAC's

- Small amplifiers

- Audio Computers


As usual this power supply comes fully assembled and tested for seamless working.


For more information regarding heat and transformator recommandation please note the instructions in FAQ.


*The SLS-HPULN PS can also be delivered as "DC-only" version. More info can be found in the FAQ.

SLS-HPULN PS - Double regulation 2,5A

194,00 €Price
PCB Colour: Black
  • Dimensions: 94 x 51mm / 3.7 x 2.01"

    Input Voltage: max. <14VAC / <20VDC


    Height (without spacers): 52mm / 2.05"

    Output Voltage: Adjustable 0-14VDC max.

    (Preadjusted to your desired output voltage)

    Output Current: 2,5A


    Ultralow RMS Noise: 0.8µVRMS (10Hz to 100kHz) per regulator

    Further reduced noise by 10x LT3045 in parallel operation

    Ultralow Spot Noise: 2nV/√Hz at 10kHz

    Ultrahigh PSRR: 2x76dB at 1MHz

    High Bandwidth: 1MHz


    High quality parts only

    Low ESR capacitors

    Low TC resistors

    Aluminium-Polymer capacitors (OS-CON, K750)

    Soldered with silver alloy