The TPS723 low-dropout (LDO) negative voltage regulator offers an ideal combination of features to support low noise applications. This device is capable of operating with input voltages from –10 V to –2.7 V, and support outputs from –10 V to –1.2 V. This regulator is stable with small, low-cost ceramic capacitors, and include enable (EN) and noise reduction (NR) functions. Thermal short-circuit and over-current protections are provided by internal detection and shutdown logic. High PSRR (65 dB at 1 kHz) and low noise (60 µVRMS) make the TPS723 ideal for low-noise applications.
The TPS723 uses a precision voltage reference to achieve 2% overall accuracy over load, line, and temperature variations. Available in a small SOT23-5 package, the TPS723 is fully specified over a temperature range of –40°C to 125°C.
| Output options | Adjustable Output, Fixed Output, Negative Output |
| Iout (max) (A) | 0.2 |
| Vin (max) (V) | -2.7 |
| Vin (min) (V) | -10 |
| Vout (max) (V) | -1.2 |
| Vout (min) (V) | -9.75 |
| Fixed output options (V) | -2.5 |
| Noise (µVrms) | 60 |
| Iq (typ) (mA) | 0.13 |
| Thermal resistance θJA (°C/W) | 85.6, 195 |
| Rating | Catalog |
| Load capacitance (min) (µF) | 2.2 |
| Regulated outputs (#) | 1 |
| Features | Enable |
| Accuracy (%) | 2 |
| PSRR at 100 KHz (dB) | 48 |
| Dropout voltage (Vdo) (typ) (mV) | 280 |
| Operating temperature range (°C) | -40 to 125 |
| SOT-23 (DBV) | 5 | 8.12 mm² 2.9 x 2.8 |
| SOT-23-THN (DDC) | 5 | 8.12 mm² 2.9 x 2.8 |
| WSON (DRV) | 6 | 4 mm² 2 x 2 |
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