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LM2954L-S08-R データシート(PDF) 6 Page - E-Tech Electronics LTD

部品番号 LM2954L-S08-R
部品情報  300mA LOW-DROPOUT VOLTAGE REGULATOR
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メーカー  ETL [E-Tech Electronics LTD]
ホームページ  http://e-tech.com.hk
Logo ETL - E-Tech Electronics LTD

LM2954L-S08-R データシート(HTML) 6 Page - E-Tech Electronics LTD

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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
VREF
1.22
1.235
1.25
V
Reference Voltage
VREF
VREFVOUT(VIN-1V),
2.3V
VIN18V,
100μA
IL100mA, TJTJMAX
1.19
1.27
V
Feedback Pin Bias Current
IB(FB)
20
40
nA
Reference Voltage Temperature
Coefficient
TCVREF
50
ppm/°C
Feedback Bias Current Temperature
Coefficient
TCIO
0.1
nA/°C
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.
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.


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