TIGER ELECTRONIC CO.,LTD
1A Low Dropout Voltage Regulator With ON/OFF Control
KIA78RXX
DESCRIPTIONS：
The
KIA78RXX
is a low drop voltage regulator suitable for various electronic equip ment. The
output current is up to 1.0A and dropout voltage is 0.5V typ. at Io=1.0A. This regulator
has various function such as peak current protection, ther mal shut down, over voltage
protection and output disable function. The
KIA78RXX
i s a v a i l a b l e i n T O - 2 5 2 - 5 L
、
TO-220F-4 power package.
FEATURE S
1.0A ou tput low drop voltage regu lato r.
Built in ON/OFF control terminal.
Built in over current protection, over heat protection function.
BLOCK DIAGRAM
1/7
1/7
KIA78RXX
Output Current
Power Dissipation 1 (no heatsink )
TO-252-5L
Power Dissipation 2 (with heatsink)
TO-220F-4
Junction Temp erature
Operating Te mperature
Storage Temperature
Soldering Te mperature (10sec)
15
125
-20
½
8 0
-30
½
1 25
260
°C
°C
°C
°C
1
1.5
10
W
A
W
ELECTRICAL CHARACTERISTICS
(unless otherwise specified: Io=0.5A,Ta=25°C)
Characteristics
Output Vo ltage
Load regulation
Line regu lation
Te mperature coefficient of
output voltage
Ripple rejection
Drop out vo ltage
Output ON state
voltage
Output ON state
current
Output
OFF
control voltage
Output
OFF
control current
for control
for control
state
state
for
for
Symbol
Vout
Rload
Rline
TcVo
R.R
V
D
V
C(ON)
I
C(ON)
V
C(OFF)
I
C(OFF)
I
Q
Vc=0.4Vo
Note1,Io=0
Vc=2.7V
Io=1A,Note3
Test conditions
Note1
Io=5 mA½ 2 A
Note2
T j = 0
½
12 5°C
Min
- 2 % Vo
Typ
Max
2%Vo
Unit
V
%
%
%/℃
dB
0.1
0.5
±0.02
45
55
2.0
2.5
±0.05
0.5
2.0
20
0.8
-0.4
10
V
V
µA
V
mA
mA
Quiescent cu rrent
Note:
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Analogue and Mixed Signal
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