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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 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
Product No.
BA00AST / ASFP BA033ST / SFP BA05ST / SFP BA06SFP
3.3 5.0 6.0 7.0
!Absolute maximum ratings (Ta=25°C)
Parameter
Power supply voltage Power dissipation
TO220FP-5 TO252-5
w
w
w
BA07ST / SFP
t a .D
Symbol VCC Pd Topr Tstg Vsurge
Output voltage (V)
S a
8.0 9.0 10.0 12.0
e h
U 4 t e
.c
m o
Product No.
BA08ST / SFP BA09ST / SFP BA10ST BA12ST
Limits 35
2000 1000
*1 *2
Unit V mW ˚C ˚C V
Operating temperature Storage temperature Peak applied voltage
-40~+85 -55~+150 50 *3
*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
w
w
w
.D
a
S a t
e e h
U 4 t
m o .c
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Regulator ICs
!Block diagram
BAΟΟST / BAΟΟSFP series
VCC 2
REFERENCE VOLTAGE
− + OUT 4 +
CTL 1 5 C
GND 3
Variable output type (BA00AST / ASFP)
VCC 2
REFERENCE VOLTAGE
− + OUT 4 +
CTL 1
GND 3
Fixed output type
!Pin descriptions
Pin No. 1 2 3 4
Pin name 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.
CTL VCC GND OUT C
5 N.C.
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Regulator ICs
!Recommended operating conditions BA00AST / ASFP
Parameter Input voltage Output current Symbol Min. VCC IO 4 Max. 25 1 Unit V A
BAΟΟST / BAΟΟSFP series
BA08ST / SFP
Parameter Input voltage Output current Symbol Min. VCC IO 9 Max. 25 1 Unit V A
BA033ST / SFP
Parameter Input voltage Output current Symbol Min. VCC IO 4.3 Max. 25 1 Unit V A
BA09ST / SFP
Parameter Input voltage Output current Symbol Min. VCC IO 10 Max. 25 1 Unit V A
BA05ST / SFP
Parameter Input voltage Output current Symbol Min. VCC IO 6 Max. 25 1 Unit V A
BA10ST
Parameter Input voltage Output current Symbol Min. VCC IO 11 Max. 25 1 Unit V A
BA06SFP
Parameter Input voltage Output current Symbol Min. VCC IO 7 Max. 25 1 Unit V A
BA12ST
Parameter Input voltage Output current Symbol Min. VCC IO 13 Max. 25 1 Unit V A
BA07ST / SFP
Parameter Input voltage Output current Symbol Min. VCC IO 8 Max. 25 1 Unit V A
!Electrical characteristics BA00AST / ASFP (unless otherwise noted, Ta=25°C, Vcc=10V, Io=500mA)
Parameter Reference voltage Power save current Output voltage Input stability Ripple rejection ratio Load regulation Temperature coefficient of output voltage Minimum I/O voltage differential Bias current Peak output current Output short-circuit current ON mode voltage OFF mode voltage Input high level current Symbol Vref Ist VO Reg.I R.R. Reg.L TCVO Vd Ib IO IOS Vth1 Vth2 IIN Min. 1.200 45 1.0 2.0 100 Typ. 1.225 0 5.0 20 55 50 ±0.01 0.3 2.5 1.5 0.4 200 Max. 1.250 10 100 150 0.5 5.0 0.8 300 Unit V µA V mV dB mV % / ˚C V mA A A V V µA VCC=6→25V OFF mode Conditions Measurement circuit Fig.1 Fig.4 Fig.1 Fig.1 Fig.2 Fig.1 Fig.1 Fig.3 Fig.4 Fig.1 Fig.5 Fig.6 Fig.6 Fig.6
eIN=1Vrms, f=120Hz, IO=100mA
IO =5mA→1A IO =5mA, Tj=0~125˚C VCC=0.95VO IO=0mA Tj=25˚C VCC=25V Output Active mode, IO=0mA Output OFF mode, IO=0mA CTL=5V, IO=0mA
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Regulator ICs
BAΟΟST / BAΟΟSFP series
BA033ST / SFP (unless otherwise noted, Ta=25°C, Vcc=8 V, Io=500 mA)
Parameter
Power save current Output voltage Input stability Ripple rejection ratio Load regulation Temperature coefficient of output voltage Minimum I/O voltage differential Bias current Peak output current
Symbol IST VO1 Reg.I R.R. Reg.L TCVO Vd Ib
IO
Min. 3.13 45 1.0 2.0 100
Typ. 0 3.3 20 55 50
±0.02
Max. 10 3.47 100 150 0.5 5.0 0.8 300
Unit µA V mV dB mV
% / ˚C
Conditions OFF mode VCC=4=.3→25V
eIN=1Vrms, f=120Hz, IO=100mA
Measurement circuit Fig.4 Fig.1 Fig.1 Fig.2 Fig.1 Fig.1 Fig.3 Fig.4 Fig.1 Fig.5 Fig.6 Fig.6 Fig.6
IO =5mA→1A IO =5mA, Tj=0~125˚C
VCC=0.95VO
0.3 2.5 1.5 0.4 200
V mA A A V V µA
IO=0mA Tj=25˚C VCC=25V Output Active mode, IO=0mA Output OFF mode, IO=0mA CTL=5V, IO=0mA
Output short-circuit current
ON mode voltage OFF mode voltage Input high level current
IOS Vth1 Vth2 IIN
BA05ST / SFP (unless otherwise noted, Ta=25°C, Vcc=10 V, Io=500 mA)
Parameter
Power save current Output voltage Input stability Ripple r.