REF50 datasheet(7/31 Pages) TI

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7.5 Electrical Characteristics

At VIN = VOUT + VDO, COUT = 10 µF, CIN = 0.1 µF, IL = 0 mA, minimum and maximum specifications at TA = –40℃ to 125℃;

Typical specifications at TA = 25℃ unless otherwise noted

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

ACCURACY AND DRIFT

Output voltage accuracy TA = 25℃

–0.05

0.05

Output voltage

temperature coefficient

(1)

–40°C ≤ TA ≤ 125°C

2.5

ppm/°C

LINE & LOAD REGULATION

ΔVO/ΔVIN

Line Regulation

VIN = VOUT + VDO (2) to 12 V

ppm/V

ΔVO/ΔIL

Load Regulation

IL = 0 mA to 10mA, VIN

= VOUT+ VDO (3)

Sourcing

ppm/mA

IL = 0 mA to –10mA,

VIN = VOUT+ VDO, TA =

25°C (3)

Sinking, REF3425

Sinking, REF3430

Sinking, REF3433

Sinking, REF3440

Sinking, REF3450

140

ISC

Short circuit current

VOUT = 0 V at TA = 25°C

NOISE

enp-p

Low frequency noise (4)

0.1Hz ≤ f ≤ 10Hz

µVp-p/V

0.1Hz ≤ f ≤ 10Hz (REF3440 and REF3450)

3.8

Integrated wide band

noise

10Hz ≤ f ≤ 10kHz

µVrms

Output voltage noise

density

f = 1kHz

0.25

ppm/√Hz

f = 1kHz (REF3440 and REF3450)

0.2

LONG TERM STABILITY AND HYSTERESIS

Long-term stability (5)

DBV Package

0 to 1000h at 35°C

ppm

1000h to 2000h at 35°C

Output voltage thermal

hysteresis (6)

DBV Package

25°C, –40°C,125°C,

25°C Cycle 1

ppm

25°C, –40°C,125°C,

25°C Cycle 2

TURN-ON TIME

tON

Turn-on time

0.1% of output voltage settling, CL = 10 µF

2.5

CAPACITIVE LOAD

Stable output capacitor

range

–40°C ≤ TA ≤ 125°C

0.1

µF

OUTPUT VOLTAGE

VOUT

Output voltage

REF3425, REF3425T

2.5

REF3430, REF3430T

3.0

REF3433, REF3433T

3.3

REF3440, REF3440T

4.096

REF3450, REF3450T

5.0

POWER SUPPLY

VIN

Input voltage

VOUT +

VDO

Output current capacity VIN = VOUT + VDO to 12 V

–10

Quiescent current

Active mode

µA

Shutdown mode

2.5

www.ti.com

REF3425, REF3430, REF3433, REF3440, REF3450

SBAS804F – SEPTEMBER 2017 – REVISED JUNE 2021

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Product Folder Links: REF3425 REF3430 REF3433 REF3440 REF3450

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