8T472 查看數據表（PDF） - Secos Corporation.
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8T472 Datasheet PDF : 5 Pages
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Elektronische Bauelemente
SJ2138
1.5A CMOS
Low Dropout Voltage Regulator
Absolute Maximum Ratings
Parameter
Input Max Voltage
Symbol
VIN
Ratings
8
Unit
V
Output Current
IOUT
PD/( VIN- VO)
A
Output Voltage
Operating Ambient Temperature
VOUT
1.5~5.0
V
Topr
-40 ~ +85
к
Junction Temperature
Tj
-40 ~ +125
ć
Maximum Junction Temperature
Tj Max
150
ć
Thermal Resistance
Power Dissipation(ϦT=100к)
Conductive
7
jc
Non-Conductive
30
ja
90
PD
1.2
к/W
к/W
W
EDS Classification
B
Electrical Characteristics Ta=25ć unless otherwise noted
Parameter
Output Voltage
Output Current
Symbol
VOUT(E)
(Note1)
IO
Condition
VIN=VOUT(T)+2V, IO=1mA
VIN=VOUT(T)+2V, VOUTЊVOUT(E)*0.96
Min
-1.5%
1.5
TYP
VOUT(T)
(Note2)
-
Max
1.5%
-
Unit
V
A
Current Limit
ILIM
VIN=VOUT(T)+2V, VO>1.2V
1.5 2.0
-
A
Load Regulation
Dropout Voltage
REGLOAD
VIN=VOUT(T)+2V, IO=1mA to 1.5A
-1
IO=1.5A
1.4V<VOUT(T)Љ2.0V -
VDROPOUT VO=VOUT(E)-2% 2.0V<VOUT(T)Љ2.8V
-
0.2
1
%
-
1300
-
800
mV
2.8V<VOUT(T)
-
-
600
Quiescent Current
IQ
VIN= VOUT(T)+2V, IO=0mA
-
45
70
A
Ground Pin Current
Line Regulation
IGND
VIN= VOUT(T)+2V, IO=1mA~1.5A
-
45
-
A
IO=1mA
VOUT(T)Љ2.0V
-0.15
-
0.15
REGLINE
VIN=VOUT(T)+1 to
VOUT(T)+2
2.0V<VOUT(T)<4.0V
-0.1
0.02
0.1
%
4.0VЉVOUT(T)
-0.4
-
0.4
Input Voltage
Over Temperature Shutdown
Over Temperature Hysterisis
Output Voltage
Temperature Coefficient
Short Circuit Current
VIN
OTS
OTH
TC
ISC
VIN=VOUT(T)+1V, VOUT<0.4V
Note3 -
-
150
-
30
-
30
-
750
7
V
-
к
-
к
-
ppm/к
-
mA
Power Supply Rejection
Output Voltage Noise
PSRR
eN
Io=100mA
Co=4.7 F
f=10Hz~100kHz
Io=10mA,
CBYP=0 F
f=100Hz
f=1kHz
f=10kHz
Co=4.7 F
-
70
-
-
50
-
dB
-
20
-
-
30
-
Vrms
Note 1: VOUT (E) =Effective Output Voltage (i.e. the output voltage when “VOUT (T) + 2.0V” is provided at the VIN pin while maintaining a
certain IOUT value).
2: VOUT (T) =Specified Output Voltage
3: VIN (MIN) =VOUT+VDROPOUT
http://www.SeCoSGmbH.com/
01-Jun-2002 Rev. A
Any changing of specification will not be informed individual
Page 2 of 5
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