ROHM Semiconductor High Fidelity Audio Power Management ICs
ROHM Semiconductor High-Fidelity Audio Power Management ICs are low-noise linear regulators suitable for high-quality audio systems. These audio power management ICs combine leading-edge analog and sound reproduction technologies. The high-fidelity ICs provide a clean power supply through low noise, voltage stabilization, and power supply symmetrization characteristics. These ICs operate at a typical supply current as small as 0µA to 9.2µA in standby mode, which reduces power consumption. The high-fidelity ICs employ an external capacitor to control the soft start function. Typical applications include high-quality audio equipment, power supply for digital to analog devices, clock generators, operational amplifiers, and headphone amplifiers.Features
- Low noise architecture
- Error amp circuit for voltage stabilization
- High Power Supply Rejection Ratio (PSRR)
- Soft start function controlled by an external capacitor
- Protection:
- Under voltage lockout protection
- Overcurrent protection
- Thermal shutdown protection
- Standby mode controlled by enabling pin
Specifications
- 53dB to 55dB PSRR range
- 3mV input transient response
- 0µA to 9.2µA typical standby current range
- Packages:
- 2mm x 3mm x 0.6mm VSON008X2030
- 4mm x 4mm x 1mm VQFN020V4040
- 4.6µ to 5.1μVrms output voltage noise
- -16V to 16V input voltage range
- -15V to 15V output voltage range
- 500mA maximum output current
- -40°C to 85°C operating temperature range
Applications
- Hi-Fi audio systems
- Portables
- Home Audio
- Wireless speakers
- High-quality audio equipment
- Power supply for operational amplifiers and headphone amplifiers
- Power supply for D/A converter and clock generator
BD372xx Block Diagram
BD372xx Performance Comparison Charts
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Published: 2018-05-24
| Updated: 2023-03-14
