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BAST / BASFP series
Regulator ICs
Regulator, low drop-out type with ON/OFF switch
ST SFP series BA / BA
The BAST and BASFP 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) 0A (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. Output voltage (V) Product No.
BA00AST / ASFP BA033ST / SFP BA05ST / SFP BA06SFP BA07ST / SFP
8.0 9.0 10.0 12.0
BA08ST / SFP BA09ST / SFP BA10ST BA12ST
3.3 5.0 6.0 7.0
!Absolute maximum ratings (Ta=25C)
Parameter
Power supply voltage Power dissipation
TO220FP-5 TO252-5
Symbol VCC Pd Topr Tstg Vsurge
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 1C over 25C. *2 Reduced by 8mW for each increase in Ta of 1C over 25C. *3 Voltage application time : 200 msec. or less
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BAST / BASFP series
Regulator ICs
!Block diagram
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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BAST / BASFP series
Regulator ICs
BA08ST / SFP
Unit V A Parameter Input voltage Output current Symbol Min. VCC IO 9 Max. 25 1 Unit V A
!Recommended operating conditions BA00AST / ASFP
Parameter Input voltage Output current Symbol Min. VCC IO 4 Max. 25 1
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=25C, 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-P 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 A V mV dB mV % / C V mA A A V V A VCC=625V 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=5mA1A IO=5mA, Tj=0~125C VCC=0.95VO IO=0mA Tj=25C VCC=25V Output Active mode, IO=0mA Output OFF mode, IO=0mA CTL=5V, IO=0mA
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BAST / BASFP series
Regulator ICs
BA033ST / SFP (unless otherwise noted, Ta=25C, 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-P
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 A V mV dB mV
% / C
Conditions OFF mode VCC=4=.325V
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=5mA1A IO=5mA, Tj=0~125C
VCC=0.95VO
0.3 2.5 1.5 0.4 200
V mA A A V V A
IO=0mA Tj=25C 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=25C, Vcc=10 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
Min.
-
Typ.
0
Max.
10
Unit A V mV dB mV
% / C
Conditions
OFF mode
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
VO1 Reg.I R.R. Reg.L TCVO Vd Ib
IO-P
4.75 45 1.0 2.0 100
5.0 20 55 50
0.02
5.25 100 150 0.5 5.0 -
VCC=62=5V
eIN=1Vrms, f=120Hz, IO=100mA
IO=5mA1A IO=5mA, Tj=0~125C VCC=4.75V IO=0mA Tj=25C VCC=25V Output Active mode, IO=0mA Output OFF mode, IO=0mA CTL=5V, IO=0mA
0.3 2.5 1.5 0.4 200
V mA A A V V A
Output short-circuit current
ON mode voltage OFF mode voltage Input high level current
IOS Vth1 Vth2 IIN
0.8 300
BA06SFP ( unless otherwise noted, Ta=25C, Vcc=11 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
Min.
Typ.
Max.
Unit A V mV dB mV
Conditions
IST
VO1 Reg.I R.R. Reg.L TCVO Vd Ib IO-P IOS Vth1 Vth2 IIN
5.7 45 1.0 2.0 100
0
6.0 20 55 50
10
6.3 100 150 0.5 5.0 -
OFF mode
VCC=725V
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
eIN=1Vrms, f=120Hz, IO=100mA
IO=5mA1A IO=5mA, Tj=0~125C VCC=5.7V IO=0mA Tj=25C VCC=25V Output Active mode, IO=0mA Output OFF mode, IO=0mA CTL=5V, IO=0mA
0.02
0.3 2.5 1.5 0.4 200
% / C
V mA A A V V A
Output short-circuit current
ON mode voltage OFF mode voltage Input high level current
0.8 300
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BAST / BASFP series
Regulator ICs
BA07ST / SFP (unless otherwise noted, Ta=25C, Vcc=12 V, Io=500 mA) (under development)
Parameter Symbol Min. Typ. Max. Unit A V mV dB mV VCC=825V
eIN=1Vrms, f=120Hz, IO=100mA
Conditions
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
IST
VO1 Reg.I R.R. Reg.L TCVO Vd Ib IO-P IOS Vth1 Vth2 IIN
6.65 45 1.0 2.0 100
0
7.0 20 55 50
10
7.35 100 150 0.5 5.0 0.8 300
OFF mode
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=5mA1A IO=5mA, Tj=0~125C VCC=6.65V IO=0mA Tj=25C VCC=25V Output Active mode, IO=0mA Output OFF mode, IO=0mA CTL=5V, IO=0mA
0.02
0.3 2.5 1.5 0.4 200
% / C
V mA A A V V A
Output short-circuit current
ON mode voltage OFF mode voltage Input high level current
BA08ST / SFP (unless otherwise noted, Ta=25C, Vcc=13 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
Min.
Typ.
Max.
Unit A V mV dB mV VCC925V
Conditions
IST
VO1 Reg.I R.R. Reg.L TCVO Vd Ib IO-P IOS Vth1 Vth2 IIN
7.6 45 1.0 2.0 100
0
8.0 20 55 50
10
8.4 100 150 0.5 5.0 0.8 300
OFF mode
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
eIN=1Vrms, f=120Hz, IO=100mA
IO=5mA1A IO=5mA, Tj=0~125C
VCC=0.95VO
0.02
0.3 2.5 1.5 0.4 200
% / C
V mA A A V V A
IO=0mA Tj=25C 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
BA09ST / SFP (unless otherwise noted, Ta=25C, Vcc=14 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
Min.
Typ.
Max.
Unit A V mV dB mV
Conditions
IST
VO1 Reg.I R.R. Reg.L TCVO Vd Ib IO-P IOS Vth1 Vth2 IIN
8.55 45 1.0 2.0 100
0
9.0 20 55 50
10
9.45 100 150 0.5 5.0 0.8 300
OFF mode
VCC=1025V
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
eIN=1Vrms, f=120Hz, IO=100mA
IO=5mA1A IO=5mA, Tj=0~125C
VCC=0.95VO
0.02
0.3 2.5 1.5 0.4 200
% / C
V mA A A V V A
IO=0mA Tj=25C 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
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BAST / BASFP series
Regulator ICs
BA10ST (unless otherwise noted, Ta=25C, Vcc=15 V, Io=500 mA)
Parameter Symbol Min. Typ. Max. Unit Conditions Measurement circuit Fig.4 Fig.1 VCC=1125V Fig.1 Fig.2 Fig.1 Fig.1 Fig.3 Fig.4 Fig.1 Fig.5 Fig.6 Fig.6 Fig.6
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
IST
VO1 Reg.I R.R. Reg.L TCVO Vd Ib IO-P IOS Vth1 Vth2 IIN
9.5 45 1.0 2.0 100
0
10 20 55 50
10
10.5 100 150 0.5 5.0 -
A
V mV dB mV
OFF mode
eIN=1Vrms, f=120Hz, IO=100mA
IO=5mA1A IO=5mA, Tj=0~125C VCC=0.95VO IO=0mA Tj=25C VCC=25V Output Active mode, IO=0mA Output OFF mode, IO=0mA CTL=5V, IO=0mA
0.02
0.3 2.5 1.5 0.4 200
% / C
V mA A A V V
Output short-circuit current
ON mode voltage OFF mode voltage Input high level current
0.8 300
A
BA12ST (unless otherwise noted, Ta=25C, Vcc=17 V, Io=500 mA)
Parameter Symbol Min. Typ. Max. Unit Conditions Measurement circuit Fig.4 Fig.1 VCC=1325V Fig.1 Fig.2 Fig.1 Fig.1 Fig.3 Fig.4 Fig.1 Fig.5 Fig.6 Fig.6 Fig.6
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
IST
VO1 Reg.I R.R. Reg.L TCVO Vd Ib IO-P IOS Vth1 Vth2 IIN
11.4 45 1.0 2.0 100
0
12 20 55 50
10
12.6 100 150 0.5 5.0 0.8 300
A
V mV dB mV
OFF mode
eIN=1Vrms, f=120Hz, IO=100mA
IO=5mA1A IO=5mA, Tj=0~125C VCC=0.95VO IO=0mA Tj=25C VCC=25V Output Active mode, IO=0mA Output OFF mode, IO=0mA CTL=5V, IO=0mA
0.02
0.3 2.5 1.5 0.4 200
% / C
V mA A A V V
Output short-circuit current
ON mode voltage OFF mode voltage Input high level current
A
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BAST / BASFP series
Regulator ICs
!Measurement circuits ( The C pin only exists on the BA00AST / ASFP, for the BA00AST / ASFP, place a 6.8k resistor between the OUT and C pins, and a 2.2k resisitor between the C and pins.)
V
105W
VCC OUT 22F + IO
eIN
VCC 100F
OUT
0.33F
VCC
22F +
eOUT
CTL
GND *C
V
VCC
0.33F CTL eIN=1Vrms f=120Hz GND *C
V
IO=100mA
5V
5V
Fig.1 Measurement circuit for output voltage, input stability, load regulation, and temperature coefficient of output voltage
Ripple rejection ratio R.R. = 20 log
eIN ( eOUT )
Fig.2 Measurement circuit for ripple rejection ratio
V
VCC
22F + IO=500mA
0.33F
OUT
VCC
OUT
22F +
VCC 0.33F VCC=0.95VO CTL GND
CTL
GND
*C
*C
A
5V
Fig.3 Measurement circuit for minimum I/O voltage differential
Fig.4 Measurement circuit for bias current, power save current measurement circuit
0.33F VCC
VCC
OUT
22F + IOS
0.33F
VCC
OUT +
CTL
GND
*C
A
VCC CTL GND *C 22F
V
5V
A
Fig.5 Measurement circuit for output short-circuit current
Fig.6
Measurement circuit for ON/OFF mode voltage, input high level current
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BAST / BASFP series
Regulator ICs
!Operation notes (1) Operating power supply voltage When operating within the normal voltage range and within the ambient operating temperature range, most circuit functions are guaranteed. The rated values cannot be guaranteed for the electrical characteristics, but there are no sudden changes of the characteristics within these ranges. (2) Power dissipation Heat attenuation characteristics are noted on a separate page and can be used as a guide in judging power dissipation. If these ICs are used in such a way that the allowable power dissipation level is exceeded, an increase in the chip temperature could cause a reduction in the current capability or could otherwise adversely affect the performance of the IC. Make sure a sufficient margin is allowed so that the allowable power dissipation value is not exceeded. (3) Output oscillation prevention and bypass capacitor Be sure to connect a capacitor between the output pin and GND to prevent oscillation. Since fluctuations in the valve of the capacitor due to temperature changes may cause oscillations, a tantalum electrolytic capacitor with a small internal series resistance (ESR) is recommended. A 22m F capacitor is recommended; however, be aware that if an extremely large capacitance is used (1000F or greater), then oscillations may occur at low frequencies. Therefore, be sure to perform the appropriate verifications before selecting the capacitor. Also, we recommend connecting a 0.33m F bypass capacitor as close as possible between the input pin and GND. (4) Current overload protection circuit A current overload protection circuit is built into the outputs, to prevent IC destruction if the load is shorted. This protection circuit limits the current in the shape of a `7'. It is designed with a high margin, so that even if a large current suddenly flows through the large capacitor in the IC, the current is restricted and latching is prevented. However, these protection circuits are only good for pre-venting damage from sudden accidents. The design should take this into consideration, so that the protection circuit is not made to operate continuously (for instance, clamping at an output of 1VF or greater; below 1VF, the short mode circuit operates). Note that the capacitor has negative temperature characteristics, and the design should take this into consideration. (5) Thermal overload circuit A built-in thermal overload circuit prevents damage from overheating. When the thermal circuit is activated, the various outputs are in the OFF state. When the temperature drops back to a constant level, the circuit is restored. (6) Internal circuits could be damaged if there are modes in which the electric potential of the application's input (VCC) and GND are the opposite of the electric potential of the various outputs. Use of a diode or other such bypass path is recommended. (7) Although the manufacture of this product includes rigorous quality assurance procedures, the product may be damaged if absolute maximum ratings for voltage or operating temperature are exceeded. If damage has occurred, special modes (such as short circuit mode or open circuit mode) cannot be specified. If it is possible that such special modes may be needed, please consider using a fuse or some other mechanical safety measure. (8) When used within a strong magnetic field, be aware that there is a slight possibility of malfunction.
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BAST / BASFP series
Regulator ICs
(9) When the connected load which contains a big inductance component in an output terminal is connected and the occurrence of a reverse electromotive force can be considered at the time of and power-output OFF at the time of starting, I ask the insertion of protection diode of you. (Example)
Output pin
(10) Although it is sure that the example of an application circuit should be recommended, in a usage, I fully ask the validation of a property of you. In addition, when you alter the circuit constant with outside and you become a usage, please see and decide sufficient margin in consideration of the dispersion in an external component and IC of our company etc. not only including the static characteristic but including a transient characteristic. This IC is monolithic IC and has P+ isolation and P substrate for an isolation between each element. A P-N junction is formed by these P layers and N layers of each element, and various kinds of parasitic elements are formed. For example, when the resistor and the transistor are connected with the pin like the example of a simple architecture, *At a resistor, it is at the time of GND > (PIN A), at a transistor (NPN), it is at the time of GND > (PIN B), A P-N junction operates as parasitism diode. *At a transistor (NPN), it is at the time of GND > (PIN B), The NPN transistor of a parasitic element operates by N layers of other elements which approach with the abovementioned parasitism diode. A parasitic element is inevitably made according to a potential relation on the architecture of IC. When a parasitic element operates, the interference of a circuit operation is caused and the cause of a malfunction, as a result a destructive is obtained. Therefore, please be fully careful of impressing a voltage lower than GND(P substrate) to an input/output terminal etc. not to carry out usage with which a parasitic element operates.
Resistor (Pin A) (Pin B) C Transistor (NPN) B E GND N P N P substrate + P N P + N Parasitic elements GND N P substrate Parasitic elements (Pin B) (Pin A) C Parasitic elements Other approaching elements B E GND Parasitic elements GND P + P N P + N
GND
The example of a simple architecture of bipolar IC
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BAST / BASFP series
Regulator ICs
!Electrical characteristic curves
25 (1)22.0
12.5
POWER DISSIPATION : Pd(W)
OUTPUT VOLTAGE : VOUT (V)
(1) Infinite heat sink 2 (2) Alumina PCB, 100x100x2 mm 2 (3) Alumina PCB, 50x50x2 mm (4) IC alone
6
(1)10.0
POWER DISSIPATION : Pd (W)
(1) Infinite heat sink is used j-c=12.5 (C/W) (2) IC simple substance j-a=125.0 (C/W)
BA05ST
5 4
20
10
15 (2)11.0 10 (3)6.5 5 (4)2.0 0 25 50 75 100 125 150
7.5
3 2
5
2.5
(2)1.0
1 0 0
0
25
50
75
100
125
150
10
20
30
40
50
AMBIENT TEMPERATURE : Ta(C)
AMBIENT TEMPERATURE : Ta (C)
INPUT VOLTAGE : VCC (V)
Fig. 7 Thermal derating curves (TO220FP-5)
6
Fig.8 Thermal derating curves (TO252-5)
Fig. 9 Current limit characteristics
BA05ST
OUTPUT VOLTAGE : VOUT (V)
5 4
3 2
1 0 0
10
20
30
40
50
INPUT VOLTAGE : VCC (V)
Fig. 10 Over voltage protection characteristics
!External Dimensions (Units: mm)
4.5 +0.3 -0.1 f3.20.1 2.8 +0.2 -0.1
1.80.2
10.0 +0.3 -0.1 7.0
+0.3 -0.1
17.0 +0.4 -0.2
6.50.2
12.00.2
+0.2 5.1 -0.1
3
2.30.2 0.50.1
8.00.2
7.00.2
5.50.2
1.5
0.850.2
13.5Min.
1.2 0.8 12345
1.778 0.5+0.1 2.85
0.8
0.5
1.27 0.50.1
1.00.2
1pin : CTL 2pin : VCC 3pin : GND 4pin : OUT 5pin : N.C.
TO220FP-5
TO252-5
2.5
1
2
4
5
9.50.5

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