400ms/div

20

0

-20

-40

-60

-80

-100

-120

0

100

200

300 400

500

600

700

800 900 1000

Time (Hrs)

2.505

2.504

2.503

2.502

2.501

2.500

2.499

2.498

2.497

-15

-10

-5

0

5

10

15

Load Current (mA)

+125 C

°

+25 C

°

-40 C

°

100 s/div

m

V

IN

V

OUT

90

80

70

60

50

40

30

20

10

0

1

10

100

1k

10k

100k

Frequency (Hz)

2.505

2.504

2.503

2.502

2.501

2.500

2.499

2.498

2.0

2.5

3.0

3.5

4.0

4.5

5.5

6.0

5.0

6.5

Supply (V)

+125 C

°

+25 C

°

-40 C

°

7

REF3112, REF3120, REF3125

REF3130, REF3133, REF3140

www.ti.com

SBVS046D – DECEMBER 2003 – REVISED MARCH 2016

Product Folder Links: REF3112 REF3120 REF3125 REF3130 REF3133 REF3140

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Copyright © 2003–2016, Texas Instruments Incorporated

Typical Characteristics (continued)

At TA = 25°C, VIN = 5-V power supply, and REF3125 is used for typical characteristic measurements, unless otherwise noted.

Figure 7. PSRR vs Frequency

Figure 8. Output vs Supply

Figure 9. Output Voltage vs Load Current

Figure 10. Step Response, CL = 0, 5-V Start-Up

Figure 11. 0.1-Hz to 10-Hz Noise

Figure 12. REF3112 Long-Term Stability