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Low Noise, Low Iq, 150-mA Low Dropout Linear Regulator with Adjustable Soft-Start


Package | PIN: DBV | 5
Temp: C (0 to 70)
Carrier: Cut Tape
Qty Price
1-9 $1.14
10-24 $1.02
25-99 $0.94
100-249 $0.80
250-499 $0.74
500-749 $0.60
750-999 $0.48
1000+ $0.43


  • 150-mA Low-Dropout Regulator
  • Available in 2.5 V, 3.3 V
  • Programmable Slew Rate Control
  • Output Noise Typically 56 uV RMS
  • Only 17 uA Quiescent Current at 150 mA
  • 1 uA 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

Texas Instruments  TPS78825DBVR

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 uA of quiescent current and exhibit only 56 uV RMS of output voltage noise using a 10 uF 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The usual PNP pass transistor has been replaced by a PMOS pass element.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 uA typical at TJ = 25°C.