LM2954

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

6 of 7

www.unisonic.com.tw

QW-R102-002.K



ELECTRICAL CHARACTERISTICS(Cont.)

LM2954-ADJ FOR 8-PIN VERSION ONLY

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Reference Voltage

1.22

1.235

1.25

V

Reference Voltage

2.3V

100μA

1.19

1.27

V

Feedback Pin Bias Current

20

40

nA

Reference Voltage Temperature

Coefficient

50

ppm/°C

Feedback Bias Current Temperature

Coefficient

0.1

nA/°C

ERROR COMPARATOR

Output Leakage Current

1

μA

Output Low Voltage

250

mV

Upper Threshold Voltage

3.2

Lower Threshold Voltage

7.6

Hysteresis

(Note 3)

15

mV

SHUTDOWN INPUT

Input Logic Voltage

Low (Regulator ON)

1.3

0.70

V

High (Regulator OFF)

2.0

Shutdown Pin Input Current

30

50

μA

450

600

μA

Regulator Output Current Shutdown

Feedback pin tied to 5V Tap.

3

10

μA

Note: 1. Additional conditions for 8-pin versions are feedback tied to 5V Tap an Output tied to Output Sense

2. Dropout voltage is defined as the input to output differential at which the output voltage drops 100mV below

its nominal value measured at 1V differential.

3. Comparator thresholds are expressed in terms of percentage value of voltage output.