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Press Release
Oct. 28, 2026

  • MUSES
  • 20 V-Rated Ultra-Low-Noise LDO for High-End Audio
    MUSES130 High-Fidelity Power Management IC

    Combination with existing MUSES operational amplifiers contributes to further enhancing the sound quality of high-end audio equipment.

Nisshinbo Micro Devices Inc. announced the launch of the MUSES130, a 20 V-rated positive low-dropout regulator (LDO) designed for power supply applications in analog circuits used in high-end audio equipment under its premium MUSES high-fidelity audio device brand.

MUSES130 Product Photo

MUSES130 DFN3030-8-GQ (3.0 × 3.0 × 0.75mm)

In analog circuits used in audio equipment, such as D/A converters, I/V conversion amplifiers, low-pass filters, line amplifiers, and headphone amplifiers, not only the signal path but also power supply quality is a critical factor that influences sound quality. High-end audio equipment requires low-noise and stable power delivery to maximize the performance of analog devices such as operational amplifiers.

MUSES is Nisshinbo Micro Devices’ premium audio device brand for high-end audio equipment. While the brand has primarily offered analog ICs including operational amplifiers, the newly released MUSES130 extends the sound-quality technologies cultivated through the MUSES series to power-management ICs. This 20 V-rated positive LDO is intended for use as a companion power supply for existing MUSES operational amplifiers. Its low-noise performance and high ripple rejection support stable power delivery to audio circuits and contribute to further improvements in overall audio quality.

Key Features include

  • bipolar process technology
  • input voltage range: 2.3 V to 19.0 V; output voltage range: 1.8 V to 17.0 V
  • output current: 200 mA, and
  • output noise voltage: typical 9 µVrms (10 Hz to 80 kHz).

The device is housed in the compact, high thermal-performance DFN3030-8-GQ package. In addition to supporting miniaturization of audio equipment and enhanced design flexibility, excellent thermal dissipation helps maintain stable operation at high output levels and supports reliable system designs.

We are also developing a negative-voltage version that can be paired with the MUSES130 to create positive/negative supply configurations. Mass production is scheduled for the first quarter of 2027. To strengthen our offering for the high-end audio circuit market, we are expanding the existing MUSES op amp lineup with positive and negative power supply products.

MUSES Series Product Portfolio Overview

Product Portfolio 1

Product Portfolio 2

Ordering Information

Product Name MUSES130
Reference Unit Price for 1,000-piece Orders
(tax included)*		 JPY 550
Sample Order Start Date October 28, 2026
Monthly Production Capability 100,000 pcs
  • *The price is based on the consumption tax rate as of October 2026.

MUSESThis logo is a trademark of Nisshinbo Micro Devices Inc.

Features

1. High Sound Quality Power Management IC Optimized for MUSES Operational Amplifiers

When used together with existing MUSES operational amplifiers, the MUSES130 helps achieve even higher sound quality in high-end audio equipment. Circuit design, layout of devices and interconnects, materials, and assembly technologies have been carefully selected with sound quality in mind, considering not only basic power-supply performance but also perceived audio quality. The device is well suited for power supplies used in analog circuits such as I/V converters, low-pass filters, line amplifiers, and headphone amplifiers. 

2. 20 V Rating, Low Noise, and High Ripple Rejection

The MUSES130 is a 20-V-rated LDO supporting an input voltage range of 2.3 V to 19.0 V and an output voltage range of 1.8 V to 17.0 V, covering the voltage requirements of analog power-supply applications in high-end audio equipment. It delivers a typical output noise voltage of 9 µVrms and a typical ripple rejection ratio of 75 dB, supporting high-quality signal processing through clean and stable power delivery.

  • Typical Characteristics: Output Noise Voltage

    Output Noise Voltage

    VIN = 3.9V, VOUT = 2.9V, CIN (Ceramic) = 10µF, CREG = 1µF, CNR = 0.47µF, CFB = 10nF, R1 = 510Ω, R2 = 680Ω, LPF = 80kHz

  • Typical Characteristics: Ripple Rejection Ratio

    Ripple Rejection Ratio

    VIN = 3.9V, VOUT = 2.9V, IOUT = 10mA, f = 1kHz, CIN (Ceramic) = 10µF, COUT (Ceramic) = 10µF, CNR = 0.47µF, CFB = 10nF, CREG = 1µF, R1 = 510Ω, R2 = 680Ω

3. Bipolar Process Technology

The MUSES130 was developed through a bipolar manufacturing process as a power management IC for high-end audio applications. Its low-noise performance and audio-focused architecture help improve design flexibility for high-end audio systems.

Key Specifications (Please refer to the datasheet for details.)

Items MUSES130
Input Voltage Range 2.3 V to 19 V (Maximum Rating: 20 V)
Output Voltage Range 1.8 V to 17 V
Output Current 200 mA
Quiescent Current Typ. 200 μA
Ripple Rejection Typ. 75 dB (at 1kHz)
Output Noise Voltage Typ. 9.0 μVrms (f = 10 Hz to 80 kHz)
Operating Temperature Range -40°C to 125°C
Protection Function Thermal Shutdown Protection, Overcurrent Protection
Package DFN3030-8-GQ (3.0 × 3.0 × 0.75 mm)

Typical Application Example

  • MUSES130 Typical Application Example

Related Links

MUSES Official Website

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