The TPS771xx and TPS772xx are low-dropout regulators with integrated power-on reset and power good (PG) function respectively. These devices are capable of supplying 150 mA of output current with a dropout of 115 mV (TPS77133, TPS77233). Quiescent current is 92 µA at full load dropping down to 1 µA when device is disabled. These devices are optimized to be stable with a wide range of output capacitors including low ESR ceramic (10 µF) or low capacitance (1 µF) tantalum capacitors. These devices have ex- tremely low noise output performance (55 µVrms) without using any added filter capacitors. TPS771xx and TPS772xx are designed to have fast transient response and thermal shutdown protection.
The TPS771xx and TPS772xx families are low‑dropout regulators that deliver up to 150 mA with integrated power‑on reset (TPS771xx) or power‑good (TPS772xx) functions. They are offered in fixed‑voltage versions (1.5 V to 5.0 V) and an adjustable version covering 1.5 V‑5.5 V, all in an 8‑pin MSOP (DGK) package.
Key features include a typical dropout voltage of 115 mV at 150 mA, ultralow quiescent current (92 µA typ.), fast transient response, and a sleep mode that reduces current to less than 1 µA when disabled. The devices operate from –40 °C to 125 °C and support input voltages from 2.7 V up to 13.5 V (or 16.5 V for reset/PG pins).
| Maximum Output Current | 150 mA |
|---|---|
| Typical Dropout Voltage | 115 mV at 150 mA |
| Quiescent Current (typical) | 92 µA |
| Output Voltage Range | 1.5 V – 5.5 V (fixed 1.5‑5.0 V options) |
| Package | 8‑Pin MSOP (DGK) |
When the regulated output reaches 95 % of its nominal value, the RESET pin goes to a high‑impedance state after a 220 ms delay; it returns to low‑impedance when the output falls below 95 %.
In sleep mode the quiescent current drops to less than 1 µA at 25 °C.