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REF3125AIDBZR

Texas InstrumentsExtended

-40℃~+125℃ 10mA 135uA 2.55V~5.5V 2.5V 20ppm/℃ 33uVp-p 48uVrms Fixed Series ±0.2% SOT-23 Voltage Reference ROHS

DatasheetJLCPCBLCSC
Part id
ti/REF3125AIDBZR
Category
Voltage Reference
Package
SOT-23
Pins
3
In stock
31,374 at JLCPCB (C33297)
Used on
4 open-source boards

Overview

The REF3125AIDBZR is a voltage Reference made by Texas Instruments in a SOT-23 package with 3 pins. -40℃~+125℃ 10mA 135uA 2.55V~5.5V 2.5V 20ppm/℃ 33uVp-p 48uVrms Fixed Series ±0.2% SOT-23 Voltage Reference ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:GM7200AUJZ-2.5-R7, from EasyEDA) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. 31,374 are in stock at JLCPCB (part C33297). 4 open-source boards in 2 repositories on GitHub use it.

Symbol

IN1OUT2GND3
EasyEDA_Cloud:GM7200AUJZ-2.5-R7From EasyEDA

Footprint

123
Package_TO_SOT_SMD:SOT-23From KiCad's library

From the datasheet

14
Supply, most
5.5 V · VIN, recommended operating max · p. 5
Supply, absolute maximum
7 V · V+ to V–, absolute maximum · p. 5
Works from
-40 °C · TA, recommended operating min · p. 5
Works up to
125 °C · TA, recommended operating max · p. 5
Junction, hottest
150 °C · junction temperature, absolute maximum · p. 5
Takes working
100 µA · quiescent current, ILOAD = 0, TA = 25°C, typical · p. 7
Takes at most
135 µA · quiescent current, ILOAD = 0, TA = –40°C to +125°C, max · p. 7
Gives
10 mA · continuous output, sourcing or sinking, max magnitude · p. 6
Current limit
50 mA · short-circuit sourcing current, typical · p. 7
Output
2.5 V · REF3125 output, VIN = 5 V, ILOAD = 0, TA = 25°C, typical · p. 6
Dropout
5 mV · ILOAD = 0, TA = –40°C to +125°C, typical · p. 6
Junction to air (DBZ (SOT-23))
292.9 K/W · junction to ambient · p. 5
Junction to board (DBZ (SOT-23))
89 K/W · junction to board · p. 5
Junction to case (DBZ (SOT-23))
124.4 K/W · junction to case, top · p. 5

Open-source boards using it

4
  • 6 layers160 × 100 mmCourant.before colored actual models 20260918T190457, the printed circuit board in 3D

    Courant.before colored actual models 20260918T190457

    KrasForge/Courant

    A 2D finite-difference physical-modeling synthesis engine in structural VHDL: a vibrating membrane/plate/gong solved on FPGA fabric, with a nonlinear chaos term, playable polyphonically over MIDI/CV.

    199 partsMIT
  • 6 layers300 × 220 mmAIPE Buck 1kW, the printed circuit board in 3D

    AIPE Buck 1kW

    FulongLi/AIPE-PCB-Agent

    AIPE-PCB-Agent is the PCB design automation of the AIPE power-electronics ecosystem. Python generators turn a requirement file set (specification, insulation table, components, interfaces, floorplan and routing inputs)…

    240 parts
  • 4 layers120 × 80 mmAIPE SiC Buck Control, the printed circuit board in 3D

    AIPE SiC Buck Control

    FulongLi/AIPE-PCB-Agent

    AIPE-PCB-Agent is the PCB design automation of the AIPE power-electronics ecosystem. Python generators turn a requirement file set (specification, insulation table, components, interfaces, floorplan and routing inputs)…

    207 parts
  • 4 layers240 × 180 mmAIPE SiC Buck Power, the printed circuit board in 3D

    AIPE SiC Buck Power

    FulongLi/AIPE-PCB-Agent

    AIPE-PCB-Agent is the PCB design automation of the AIPE power-electronics ecosystem. Python generators turn a requirement file set (specification, insulation table, components, interfaces, floorplan and routing inputs)…

    237 parts

Parts like it

8

Questions

Is there a KiCad symbol and footprint for the REF3125AIDBZR?

Yes. The symbol is EasyEDA_Cloud:GM7200AUJZ-2.5-R7 and the footprint Package_TO_SOT_SMD:SOT-23, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the REF3125AIDBZR?

SOT-23, with 3 pins. Its footprint is drawn on this page.

Where is the REF3125AIDBZR datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the REF3125AIDBZR?

JLCPCB lists it as part C33297, with 31,374 in stock; the sellers' links on this page open their listings.

What can replace the REF3125AIDBZR?

Parts like it in the library: the LM4040AIM3X-2.5 by Texas Instruments, the LM4040B25FTA by Diodes Incorporated, the LM4040A25IDBZR by Texas Instruments and the ADR5041BRTZ-REEL7 by Analog Devices. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the REF3125AIDBZR?

4 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.