LDO regulator for high quality audio devices

With its superior performance and advanced features, the device sets a new standard for audio equipment manufacturers and enthusiasts alike and is targeted for use in home audio, professional audio, and portable audio equipment.

The MUSES100 series is a CMOS-based LDO regulator that operates with an input voltage range from 2.5V to 5.5V, delivering an output voltage range from 1.2V to 5.0V and supporting an output current of up to 600mA. This series is meticulously engineered to provide exceptional audio quality, featuring a ripple rejection ratio of 90dB at 1kHz & 10kHz and 80dB at 100kHz. In addition, an ultra-low output noise voltage of just 3.0μVrms, making it the ideal choice for high-quality audio DACs and other audio equipment to ensure stable and noise-free audio output even under fluctuating power conditions.

The typical dropout voltage is 0.15V at 600mA, providing efficient voltage regulation with minimal power loss. A thermal shutdown, under-voltage lockout (UVLO), and overcurrent protection mechanisms are included to ensure reliable operation. Furthermore, it supports the use of film and aluminium electrolytic capacitors as these have better DC bias characteristics (less reduction in capacitance as the applied DC voltage increases).

The MUSES100 uses a compact DFN3030-8-QC package. It is available for purchase now.

MUSES100 Specifications:

• Input voltage range (maximum rating): 2.5V to 5.5V (6.5V)
• Output voltage range: 1.2V to 5.0V
• Output current: 600mA
• Output noise voltage: Typ. 3.0μVrms (IOUT = 50mA, CNR = 0.47μF)
• Ripple rejection: Typ. 90dB (f = 1kHz, 10kHz)
• Dropout voltage: Typ. 0.15V (IOUT = 600mA, VSET = 3.3V)
• Quiescent current: Typ. 960μA
• Operating temperature range: –40°C to 85°C
• Protection function
• Thermal shutdown
• Under voltage lockout (UVLO)
• Over current protection
• Film and aluminium electrolytic capacitors can be used
• Package MUSES100GQ: DFN3030-8-GQ
• Datasheet: MUSES100Consumer version