REF30E and REF30, Low Current Voltage Reference in SOT-23-3

1 Features

• Small industry standard footprint: SOT23-3

• High accuracy

– REF30E: ±0.1%

– REF30: ±0.2%

• Excellent temperature drift performance:

– REF30E: 20ppm/°C

– REF30: 75ppm/°C

• REF30E is drop-in replacement of REF30

• Low IQ (typical)

– REF30E: 25µA

– REF30: 42µA

• High output current

– REF30E: ±10mA

– REF30: 25mA

• Output voltage options

– REF30E: 1.25V to 5V

– REF30: 1.25V to 4.096V

• Temperature range: -40ºC to +125ºC

2 Applications

• Field transmitter & sensor

• Solar energy

• PLC, DCS & PAC

• Energy storage systems

• Medical & healthcare

• AC inverter & VF drives

• Handheld Test Equipment

3 Description

The REF30 is a precision, low-power, low-dropout

voltage, reference family available in a tiny 3-

pin SOT-23 package. REF30E is the enhanced

performance version of REF30 family which is

designed for precision applications. The REF30E

offers improved temperature drift and initial accuracy

while operating at a lower quiescent current of 25µA.

The low power consumption and the improved

precision make the REF30E very attractive for loop-

powered industrial applications such as pressure

and temperature transmitter and battery-powered

applications. The REF30/REF30E is specified over

the extended industrial temperature range of –40°C to

+125°C. The REF30 is easy to use in intrinsically safe

and explosion-proof applications because the REF30

does not require a load capacitor to be stable.

Package Information

PART NUMBER

PACKAGE(1)

PACKAGE SIZE(2)

REF30xx

SOT-23 (3)

2.92mm × 2.37mm

REF30xxE(3)

SOT-23 (3)

2.92mm × 2.37mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

(2)

The package size (length × width) is a nominal value and

includes pins, where applicable.

(3)

This is preview device. Contact local TI support for samples.

5 Ω

ADS7822

V

CC

CS

D

OUT

DCLOCK

V

REF

+In

–In

GND

+

+

1 F to 10 F

μ

μ

1 F to

μ

10 F

μ

3.3 V

0.1 F

μ

V

IN

V+

V

S

Microcontroller

REF3033

GND

Copyright © 2016, Texas Instruments Incorporated

Typical Application

350

300

250

200

150

100

50

0

0

5

10

15

20

25

30

Load Current (mA)

Dropout Voltage vs Load Current

REF30, REF30E

SBVS032J – MARCH 2002 – REVISED JULY 2025

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.