ROHM BAOST BAOSFP series Data sheet
Summary
The BAOOST/BAOOSFP series offers versatile, low drop-out voltage regulators featuring essential ON/OFF switching for stable power delivery from fluctuating DC inputs. These ICs provide both fixed and variable outputs ranging from 3.3V to 12V, equipped with built-in overvoltage and thermal protection circuits. This comprehensive manual serves electronics designers and hardware engineers, providing detailed technical specifications on electrical performance, load regulation, operating conditions, mounting details (TO220/TO252), and thermal derating curves necessary for robust power design and integration.
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BAΟΟST / BAΟΟSFP series
Regulator ICs
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) Product No. Output voltage (V) Product No.
Variable BA00AST / ASFP 8.0 BA08ST / SFP BA033ST / SFP 9.0 BA09ST / SFP3.3
BA05ST / SFP 10.0 BA10ST5.0
BA06SFP 12.0 BA12ST6.0
7.0 BA07ST / SFP
!Absolute maximum ratings (Ta=25°C)
Parameter Symbol Limits Unit
Power supply voltage VCC
TO220FP-5
Power dissipation Pd m W
TO252-5 *2
Operating temperature Topr -40~+85 ˚C Storage temperature Tstg -55~+150 ˚C
Peak applied voltage Vsurge *1 Reduced by 16m W for each increase in Ta of 1˚C over 25˚C. *2 Reduced by 8m W for each increase in Ta of 1˚C over 25˚C. *3 Voltage application time : 200 msec. or less
Page Summary Contents For ROHM BAOST BAOSFP series Data sheet
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 10 |
| File Size | 117.82 KB |
| Published | June 20, 2026 |
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Frequently Asked Questions
What input voltage range is supported by the BA033ST/SFP regulator?
The recommended minimum and maximum input voltage (VCC) range is 4.3 V to 25 V.
Do these regulators offer built-in protection features?
Yes, they include overvoltage, overcurrent, and thermal shutdown circuits.
What are the available fixed output voltages for this series?
Fixed options include 3.3V, 5V, 6V(SFP), 7V, 8V, 9V, 10V(ST), and 12V(ST).
How much power can the device dissipate on a TO252-5 package?
The maximum power dissipation (Pd) is rated at 1000 mW.