6.5 Electrical Characteristics REF54250 (continued)

Typical specifications at TA = 25°C, min-max specifications verified across temperature range, IL = 0mA, CIN = 0.1µF, CREF =

10µF, CNR = Open, VIN = VREF + VDO, unless otherwise noted

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

CREF

Stable output capacitor

range (2)

–40

℃ ≤ TA ≤ 125℃

1

100

µF

POWER SUPPLY

VIN

Input voltage

VREF + VDO

18

V

IQ

Quiescent current

TA = 25°C

Active mode

260

µA

–40°C ≤ TA ≤ 125°C

380

µA

TA = 25°C

Shutdown mode

0.5

1

uA

–40°C ≤ TA ≤ 125°C

2

uA

VEN

Enable pin voltage

Active mode (EN=1)

1.6

V

Shutdown mode (EN=0)

0.5

V

IEN

Enable pin current

VIN = VEN = 18V

0.5

uA

VIN = VEN = 18V, –40°C ≤ TA ≤ 125°C

1.5

uA

VDO

Dropout voltage

IL = 5mA, –40°C ≤ TA ≤ 125°C

250

mV

IL = 10mA, –40°C ≤ TA ≤ 125°C

400

mV

ISC

Short circuit current

VREF = 0V

21

mA

(1)

Preview specification. Subject to change at production release.

(2)

ESR for the capacitor can range from 10mΩ to 1Ω.

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REF54

SNVSCN7D – NOVEMBER 2023 – REVISED JUNE 2026

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