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LM2954 データシート(PDF) 6 Page - Unisonic Technologies

部品番号 LM2954
部品情報  300mA LOW-DROPOUT VOLTAGE REGULATOR
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メーカー  UTC [Unisonic Technologies]
ホームページ  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

LM2954 データシート(HTML) 6 Page - Unisonic Technologies

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LM2954
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
6 of 7
www.unisonic.com.tw
QW-R102-002.H
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
VI(LOG)
Low (Regulator ON)
1.3
0.70
V
High (Regulator OFF)
2.0
Shutdown Pin Input Current
II(SHDN)
VSHDN=2.4V
30
50
μA
VSHDN=30V
450
600
μA
Regulator Output Current Shutdown
IO(SHDN)
VSHDN≧2V,VIN≦30V, VOUT=0,
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
(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.


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