LM2954 データシートの表示（PDF） - Unisonic Technologies

部品番号

コンポーネント説明

メーカー

LM2954

300mA LOW-DROPOUT VOLTAGE REGULATOR

Unisonic Technologies 

LM2954

LINEAR INTEGRATED CIRCUIT

„ ELECTRICAL CHARACTERISTICS(Cont.)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN. TYP. MAX. UNIT

ERROR COMPARATOR

Output Leakage Current

IO(LEAK) VOH=30V

1

μA

Output Low Voltage

VOL VIN=4.5V, IOL=400μA

250 mV

Upper Threshold Voltage

VTHD(UP) (Note 3)

3.2

%VOUT

Lower Threshold Voltage

VTHD(LOW) (Note 3)

7.6 %VOUT

Hysteresis

VHYS (Note 3)

15

mV

SHUTDOWN INPUT

Input Logic Voltage

Low (Regulator ON)

VI(LOG) High (Regulator OFF)

1.3 0.70

V

2.0

Shutdown Pin Input Current

Regulator Output Current Shutdown

II(SHDN)

IO(SHDN)

VSHDN=2.4V

VSHDN=30V

VSHDN≧2V,VIN≦30V, VOUT=0,

Feedback pin tied to 5V Tap.

30 50

μA

450 600 μA

3

10

μA

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

(VOUT=5V) and VSHDN≦0.8V.

Note 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.

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

UNISONIC TECHNOLOGIES CO., LTD

www.unisonic.com.tw

6 of 7

QW-R102-002.H

Share Link: