The TPS73xx devices are a family of micropower low-dropout (LDO) voltage regulators. They are differentiated from the TPS71xx and TPS72xx LDOs by their integrated delayed microprocessor-reset function. The TPS73xx devices are available in 2.5V, 3V, 3.3V, 4.85V and 5V fixed-output and adjustable versions. They feature an integrated precision supply-voltage supervisor monitoring regulator output voltage. They feature an active-low reset signal with a 200-ms pulse width. The maximum dropout voltage is 35 mV at IO = 100 mA (TPS7350). Quiescent current is very low and independent of load. Typical is 340 µA. Sleep-state current is extremely low, 0.5 µA maximum. For fixed-output versions, tolerance is 2% over the full range of load, line, and temperature. The output current range is 0 mA to 500 mA. The TSSOP package option offers reduced component height for critical applications.
The TPS73xx family comprises micropower low‑dropout (LDO) regulators available in fixed‑voltage (2.5 V, 3 V, 3.3 V, 4.85 V, 5 V) and an adjustable version (1.2 V‑9.75 V). They include an integrated delayed reset function that drives an open‑drain NMOS reset pin when the output voltage falls below the programmed threshold, holding the pin low until a 200 ms timeout expires. The devices use a PMOS pass element, giving a very low dropout voltage (as low as 35 mV at 100 mA for the TPS7350) and a low, load‑independent quiescent current.
The datasheet provides electrical characteristics, absolute‑maximum ratings, and recommended operating conditions for each part. Package options include PDIP‑8, SO‑8, and TSSOP‑20 (1.2 mm height). Detailed tables list dropout voltage versus output current, power‑dissipation derating, and resistor‑divider formulas for the programmable version. The document also contains bonding‑pad specifications, package‑option addenda, and legal notices.
| Maximum dropout voltage (TPS7350, 100 mA) | 35 mV |
|---|---|
| Output current range | 0 mA to 500 mA |
| Output voltage tolerance | ±2 % (±3 % for 2.5 V and adjustable versions) |
The parts are offered in PDIP‑8, SO‑8, and TSSOP‑20 packages; the TSSOP version has a maximum height of 1.2 mm.