TPS7A49 LDO - Precision Analog Applications

Ultra-Low Noise Low Dropout (LDO) Voltage Regulator IC

Total Solutions for Powering Precision Analog Applications

The TPS7A30 LDO paired with the positive voltage TPS7A49 LDO provides designers with a total solution for powering precision analog applications. The LDOs feature ultra-high power supply rejection ratio (PSRR) performance and as low as 16 µVRMS of output noise. The TPS7A30 LDO generates -200 mA, while the TPS7A49 LDO supplies 150 mA. The LDOs are designed for noise sensitive applications.

Device	VIN (V)	IOUT (mA)	VDO (mA)	IQ (µA)	Datasheet	Samples	Evaluation Module
TPS7A30	-3 to -36	-200	216	55	Download	Order	Order
TPS7A49	+3 to +36	150	241	55	Download	Order

Key Features

• 1.5% nominal accuracy
• Stable with >2.2–µF ceramic output capacitor
• Low noise/high PSRR
  • Output noise as low as 16 µVRMS
  • PSRR of 72 dB @ 1 kHz and
    55 dB @ 10 kHz to 700 kHz

Key Benefits

• Better precision for VCOs, PLLs and ADCs
• Smaller size and lower cost versus tantalums
• Improved dynamic range in RF applications, filters and handling of DC/DC spikes