Nisshinbo Micro Devices Inc., a specialist in electronic components, has launched the MUSES100 series, a low-noise, low-dropout (LDO) voltage regulator designed specifically for high-quality audio applications. With its impressive performance and advanced features, the device is described as setting 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 impressive audio quality, featuring a ripple rejection ratio of 90 dB at 1 kHz & 10 kHz and 80 dB at 100 kHz. In addition, an ultra-low output noise voltage of just 3.0 μVrms, making it a suitable 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): 2.5 V to 5.5 V (6.5 V)
- Output Voltage Range: 1.2 V to 5.0 V
- Output Current: 600 mA
- Output Noise Voltage: Typ. 3.0 μVrms (IOUT = 50 mA, CNR = 0.47 μF)
- Ripple Rejection: Typ. 90 dB (f = 1 kHz, 10 kHz)
- 80 dB (f = 100 kHz) (CNR = 0.47 μF)
- Dropout Voltage: Typ. 0.15 V (IOUT = 600 mA, VSET = 3.3 V)
- Quiescent Current: Typ. 960 μA
- 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: MUSES100 Consumer version
