TPS78833

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)§
Input voltage range(see Note 1 )  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 13.5 V
Voltage range at EN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to V_I + 0.3 V
Voltage on OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . 7 V
Peak output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Internally limited
ESD rating, HBM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2 kV
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . .See Dissipation Rating Table
Operating virtual junction temperature range, T_J . . . . . . . . . . . . . . . . . . . . . . . . . 40 to 150
Operating ambient temperature range, T_A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 to 85
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 to 150

§ Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: All voltage values are with respect to network ground terminal.

The TPS78825 and TPS78833 are very small (SOT-23) package, low-noise LDOs that regulate the output voltage to 2.5 V and 3.3 V with input voltage ranging from 2.7 V to an absolute maximum of 13.5 V. These TPS78833 output 150 mA with a peak current of 350 mA (typ). The TPS788xx family uses the SR pin to program the output voltage slew rate to control the in-rush current. This is specifically used in the USB application where large load capacitance is present at start-up. The TPS78833 devices use only 17 µA of quiescent current and exhibit only 56 µVRMS of output voltage noise using a 10 µF output capacitor.

The usual PNP pass transistor TPS78833 has been replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low, typically 150 mV at 150 mA of load current, and is directly proportional to the load current.

The TPS78833 also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current to 1 µA typical at TJ = 25°C.