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REF3125
  • REF3125
  • REF3125

REF3125

ACTIVE

2.5-V, 20-ppm/°C max, 100-µA, 3-pin SOT-23 series voltage reference

Texas Instruments REF3125 Product Info

1 April 2026 5

Parameters

Rating

Catalog

VO (V)

2.5

Temp coeff (max) (ppm/°C)

20

Initial accuracy (max) (%)

0.2

Iout/Iz (max) (mA)

10

Vin (min) (V)

2.55

Vin (max) (V)

5.5

Iq (typ) (mA)

0.1, 100

LFN 0.1 to 10 Hz (typ) (µVPP)

33

Operating temperature range (°C)

-40 to 125

Package

SOT-23 (DBZ)-3-6.9204 mm² 2.92 x 2.37

Features

  • Size Package: SOT23-3
  • Low Dropout: 5 mV
  • High Output Current: ±10 mA
  • High Accuracy: 0.2% Maximum
  • Low IQ: 115 µA Maximum
  • Excellent Specified Drift Performance:
    • 15 ppm/°C (Maximum) from 0°C to +70°C
    • 20 ppm/°C (Maximum) from –40°C to +125°C
  • Size Package: SOT23-3
  • Low Dropout: 5 mV
  • High Output Current: ±10 mA
  • High Accuracy: 0.2% Maximum
  • Low IQ: 115 µA Maximum
  • Excellent Specified Drift Performance:
    • 15 ppm/°C (Maximum) from 0°C to +70°C
    • 20 ppm/°C (Maximum) from –40°C to +125°C

Description

The REF31xx is a family of precision, low power, low dropout, series voltage references available in the tiny 3-pin SOT-23 package.

The REF31xx’s small size and low power consumption (100 µA typical) make it ideal for portable and battery-powered applications. The REF31xx does not require a load capacitor, but is stable with any capacitive load and can sink or source up to 10 mA of output current.

Unloaded, the REF31xx can operate on supplies down to 5 mV above the output voltage. All models are specified for the wide temperature range of –40°C to +125°C.

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