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Rohm Semiconductor Electronic Components Datasheet


BA033ST

(BAxxST) Regulator


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BA033ST pdf
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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
each of the above voltages.
!Application
Constant voltage power supply
!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.
3) 0µA (design value) circuit current when switch is off
4) Richly diverse lineup.
5) Low minimum I/O voltage differential.
!Product codes
Output voltage (V)
Variable
3.3
5.0
6.0
7.0
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
!Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Power supply voltage
Power dissipation TO220FP-5
TO252-5
Operating temperature
Storage temperature
VCC
Pd
Topr
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
Limits
35
2000 *1
1000 *2
-40~+85
-55~+150
50 *3
Unit
V
mW
˚C
˚C
V



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BA033ST pdf
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!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.



Part Number BA033ST
Description (BAxxST) Regulator
Maker Rohm - Rohm
Total Page 10 Pages
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