The TPS732-Q1 family of low-dropout (LDO) voltage regulators uses a new topology: an NMOS pass element in a voltage-follower configuration. This topology is stable using output capacitors with low ESR, and even allows operation without a capacitor. The topology also provides high reverse blockage (low reverse current) and ground pin current that is nearly constant over all values of output current.
The TPS732-Q1 family of devices uses an advanced BiCMOS process to yield high precision while delivering low dropout voltages and low ground pin current. Current consumption, when not enabled, is under 1 µA and ideal for portable applications. The extremely low output noise (30 µVRMS with 0.1-µF CNR) is ideal for powering VCOs. These devices are protected by thermal shutdown and foldback current limit.
| Output options | Adjustable Output, Fixed Output |
| Iout (max) (A) | 0.25 |
| Vin (max) (V) | 5.5 |
| Vin (min) (V) | 1.7 |
| Vout (max) (V) | 5.4 |
| Vout (min) (V) | 1.2 |
| Fixed output options (V) | 1.8, 5 |
| Noise (µVrms) | 30 |
| Iq (typ) (mA) | 0.4 |
| Thermal resistance θJA (°C/W) | 48, 83.8, 179.0 |
| TI functional safety category | Functional Safety-Capable |
| Rating | Automotive |
| Load capacitance (min) (µF) | 0 |
| Regulated outputs (#) | 1 |
| Features | Enable, Foldback Overcurrent protection, Reverse Current Protection |
| Accuracy (%) | 1 |
| PSRR at 100 KHz (dB) | 16 |
| Dropout voltage (Vdo) (typ) (mV) | 40 |
| Operating temperature range (°C) | -40 to 125 |
| SOT-223 (DCQ) | 6 | 45.89 mm² 6.5 x 7.06 |
| SOT-23 (DBV) | 5 | 8.12 mm² 2.9 x 2.8 |
| VSON (DRB) | 8 | 9 mm² 3 x 3 |
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