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

Block Diagram - ROHM Semiconductor High Fidelity Audio Power Management ICs

BD372xx Performance Comparison Charts

Chart - ROHM Semiconductor High Fidelity Audio Power Management ICs
Published: 2018-05-24 | Updated: 2023-03-14