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ROHM Semiconductor |
Regulator ICs
BAΟΟST / BAΟΟSFP series
Regulator, low drop-out type with ON/OFF
switch
BAΟΟST / BAΟΟSFP series
The BAΟΟST and BAΟΟSFP series are variable, fixed output low drop-out type voltage regulators with an ON/OFF
switch.
These regulators are used to provide a stabilized output voltage from a fluctuating DC input voltage.
Fixed output voltages are 3.3V, 5V, 6V(SFP), 7V, 8V, 9V, 10V(ST), 12V(ST). The maximum current capacity is 1 A for
meach of the above voltages.
.co!Application
Constant voltage power supply
t4U!Features
1) Built-in overvoltage protection circuit, overcurrent protection circuit and thermal shutdown circuit
2) TO220FP-5, TO252-5 standard packages can be accomodated in wide application.
e3) 0µA (design value) circuit current when switch is off
e4) Richly diverse lineup.
5) Low minimum I/O voltage differential.
Sh!Product codes
Output voltage (V)
taVariable
3.3
a5.0
6.0
.D7.0
Product No.
BA00AST / ASFP
BA033ST / SFP
BA05ST / SFP
BA06SFP
BA07ST / SFP
Output voltage (V)
8.0
9.0
10.0
12.0
Product No.
BA08ST / SFP
BA09ST / SFP
BA10ST
BA12ST
w!Absolute maximum ratings (Ta=25°C)
wParameter
Symbol
wPower supply voltage
VCC
Limits
35
Unit
V
Power dissipation TO220FP-5
TO252-5
Operating temperature
Pd
Topr
Storage temperature
Tstg
Peak applied voltage
Vsurge
*1 Reduced by 16mW for each increase in Ta of 1˚C over 25˚C.
*2 Reduced by 8mW for each increase in Ta of 1˚C over 25˚C.
*3 Voltage application time : 200 msec. or less
2000 *1
1000 *2
-40~+85
-55~+150
50 *3
mw˚˚VCCWww.DataShee1t4/11U.com
Regulator ICs
!Block diagram
BAΟΟST / BAΟΟSFP series
VCC
2
CTL
1
REFERENCE
VOLTAGE
−
OUT
+4
+
5
C
GND
3
Variable output type (BA00AST / ASFP)
VCC
2
CTL
1
REFERENCE
VOLTAGE
−
OUT
+4
+
GND
3
Fixed output type
!Pin descriptions
Pin No.
1
2
3
4
Pin name
CTL
VCC
GND
OUT
C
5
N.C.
Function
Output ON/OFF
Power supply input
Ground
Output
Reference power supply pin for setting voltage with
the BA00AST/ASFP.
In the BAOOST/SFP Series, these are NC pins,
except for the BA00AST/ASFP.
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