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
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