TCR5RG 500 mA High PSRR Low Noise LDO Regulator

Author: EIS Release Date: Feb 2, 2021


Toshiba's TCR5RG regulator is designed for noise suppression for sensitive applications

Image of Toshiba's TCR5RG 500 mA High PSRR, Low Noise LDO RegulatorToshiba’s LDO regulator series achieves industry-leading ripple rejection (PSRR) and ultra-low output voltage noise (VNO), that means it is ideal for supplying power to sensitive ICs, chipsets, and other components that require stable supply. Output voltages range from 0.9 V to 5.0 V, covering the most popular voltage ranges.

With a PSRR of 100 dB (typ.), the TCR5RG can stabilize high frequency noise from external environments or DC/DC converters, which can cause malfunctions. This is in addition to the intrinsic output voltage noise, which has been minimized to just 5 μVRMS with Toshiba’s latest process. Dropout voltage is also critical and is just 150 mV (typ.) at 2.8 V and 500 mA output.

TCR5RG also features reduced quiescent current when compared to similar-class LDO regulators. Typically, there is a trade-off between quiescent current and noise suppression; however, this LDO has reduced passive current consumption to just 7 μA (typ.) at IOUT = 0 mA. This allows for longer operating times in battery-driven devices while supplying power to sensitive ICs and other components.

This LDO is packaged in a low profile WCSP4F package, which measures just 0.645 mm x 0.645 mm x 0.33 mm, allowing for higher density designs in mobile consumer-type products.

Features
  • High ripple rejection ratio: PSRR = 100 dB (typ.)
  • Low output voltage noise: VNO= 5 μVRMS
  • Low quiescent current: IQ = 7 μA (typ.)
  • Low dropout voltage: VDO = 150 mV (typ.) at 2.8 V output, IOUT = 500 mA
  • Overcurrent protection
  • Thermal shutdown
  • Auto-discharge
  • Ceramic capacitors can be used (CIN = 1 μF, COUT = 1 μF)
Applications
  • Mobile devices
  • Imaging and audio-visual equipment
  • Camera modules
  • Wireless chipsets
  • CMOS sensor power supplies
  • MCU power supplies
  • RF power supplies
  • TXCO power supplies