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ISSUED DATE :2005/03/16
REVISED DATE :
Absolute Maximum Ratings
Parameter
Symbol
Ratings
Unit
I
nput Max Voltage
VIN
8
V
Output Current
IOUT
PD/( VIN- VO)
mA
Output Voltage
VOUT
1.2~3.8
V
Operating Ambient Temperature
Topr
-40 ~ +85
:
Junction Temperature
Tj
-40 ~ +125
Maximum Junction Temperature
Tj Max
150
Thermal Resistance
ja
260
: /W
Power Dissipation( T=100 : )
PD
380
mW
EDS Classification
B
Electrical Characteristics Ta=25
unless otherwise noted
Parameter
Symbol
Condition
Min
TYP
Max
Unit
Output Voltage
VOUT(E)
(Note1)
VIN=VOUT(T)+2V, IO=1mA
-1.5% VOUT(T)
(Note2)
1.5%
V
Output Current
IO
VIN=VOUT(T)+2V, VOUT VOUT(E)*0.96
300
-
mA
Current Limit
ILIM
VIN=VOUT(T)+2V, VO>1.2V
300
450
-
mA
Load Regulation
REGLOAD
VIN=VOUT(T)+2V, IO=1mA to 300mA
-1
0.2
1
%
1.2V VOUT(T) 2.0V
-
1300
2.0V<VOUT(T) 2.8V
-
400
Dropout Voltage
VDROPOUT
IO
=300mA
VO=VOUT(E)-2%
2.8V<VOUT(T)
-
300
mV
Quiescent Current
IQ
VIN= VOUT(T)+1V, IO=0mA
-
30
50
A
Ground Pin Current
IGND
VIN= VOUT(T)+2V, IO=1mA~300mA
-
35
-
A
1.2V VOUT(T) 1.4V
-0.2
-
0.2
1.4V<VOUT(T) 2.0V
-0.15
-
0.15
2.0V<VOUT(T)<4 ` -0.1
0.02
0.1
Line Regulation
REGLINE
IO
=1mA
VIN=VOUT(T)+1 to
VOUT(T)+2
4.0V VOUT(T)
-0.4
0.2
0.4
%
I
nput Voltage
VIN
Note3
-
7
V
Over Temperature Shutdown
OTS
-
150
-
:
Over Temperature Hysterisis
OTH
-
30
-
:
Vo Temperature Coefficient
TC
-
30
-
ppm/ :
Short Circuit Current(Note4)
ISC
VIN=VOUT(T)+1V, VOUT<0.8V
-
150
300
mA
f=100Hz
-
60
-
f=1kHz
-
50
-
Power Supply Rejection
PSRR
I
o=100mA
Co=2.2 F
f=10kHz
-
20
-
dB
Output Voltage Noise
eN
f=10Hz~100kHz
I
o=10mA
Co=2.2 f
-
30
-
Vrms
VEH
VIN=2.7V to 7V
2.0
-
VIN
V
EN Input Threshold
VEL
VIN=2.7V to 7V
0
-
0.4
V
IEH
VEN=VIN, VIN=2.7V to 7V
-
0.1
A
EN Input Bias Current
IEL
VEN= 0V, VIN=2.7V to 7V
-
0.5
A
Shutdown Supply Current
ISD
VIN=5V, VO=0V, VEN<VEL
-
0.5
1
A
Shutdown Output Voltage
VO,SD
I
o=0.4mA, VEN<VEL
0
-
0.4
V
2.5V VOUT(T) 5.0V
-
85
Output Under Voltage
VUV
1.2V VOUT(T)<2.5V
-
75
% VOUT(T)
2.5V VOUT(T) 5.0V
115
-
Output Over Voltage
VOV
1.2V VOUT(T)<2.5V
125
-
% VOUT(T)
PG Leakage Current
ILC
VPG=7V
-
1.0
A
PG Voltage Rating
VPG
VO in regulation
-
7.0
V
PG Voltage Low
VOL
ISINK=0.4mA
-
0.4
V
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
4: To prevent the Short Circuit Current protection feature from being prematurely activated, the input voltage must be applied before
a current source load is applied.