FEATURES
150-mA Low-Dropout Regulator
Available in 2.5 V, 3.3 V
Programmable Slew Rate Control
Output Noise Typically 56 μVRMS
Only 17 μA Quiescent Current at 150 mA
1 μA Quiescent Current in Standby Mode
Dropout Voltage Typically 150 mV at 150 mA
(TPS78833)
Over Current Limitation
–40°C to 125°C Operating Junction
Temperature Range
5-Pin SOT-23 (DBV) Package

DESCRIPTION
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
devices 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
TPS788xx 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The usual PNP pass transistor has been replaced by a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 TPS788xx also features a logic-enabled sleep
mode to shut down the regulator, reducing quiescent
current to 1 μA typical at TJ = 25°C.