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Product attributes Property Value
Manufacturer Rohm Semiconductor
Product Series
Packaging |
Output Configuration Active
Output Type Positive
Number of Regulators Fixed
Voltage - Input (Max) 25V
Voltage - Output (Min/Fixed) 12V
Voltage - Output (Max) -
Voltage Dropout (Max) -
Current - Output 1A
Current - Quiescent (Iq) 2.5 mA
Current - Supply (Max) 5 mA
PSRR 55dB (120Hz)
Control Features Enable
Protection Features Over Current, Over Temperature, Over Voltage
Operating Temperature -40°C ~ 85°C
Grade -
Qualification -
Mounting Type Through Hole
Package / Case TO-220-5 Full Pack
Supplier Device Package TO-220FP-5
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The BA12ST is a fixed-output LDO regulator from Rohm Semiconductor, delivering 12V at up to 1A. Its TO-220FP-5 package ensures efficient heat dissipation. With a low 2.5mA quiescent current and 55dB ripple rejection, it provides stable power for industrial and consumer applications.

  • Versatile 12V Output: Ideal for standard industrial and automotive rails.
  • High Current: 1A capability supports multiple loads.
  • Low Quiescent Current: 2.5mA reduces standby power.
  • Good Noise Rejection: 55dB PSRR at 120Hz ensures clean output.

Industrial Sensors

Provides stable 12V for industrial sensors, ensuring accurate readings in factory automation.

LED Lighting Drivers

Regulates 12V for LED strips, with 1A capacity for multiple LED strings.

Motor Controllers

Supplies clean 12V to microcontroller and gate driver circuits in motor control systems.

Communication Modules

Delivers 12V to RF transceivers, with 55dB PSRR to reject power supply noise.

Automotive Electronics

Maintains 12V for infotainment systems, ensuring reliable operation in vehicle environments.

Q: What is the output voltage of the BA12ST?
A: The BA12ST provides a fixed 12V output voltage.
Q: What is the maximum output current?
A: It can supply up to 1A of output current.
Q: What is the input voltage limit?
A: The maximum input voltage is 12V.
Q: What is the quiescent current?
A: The quiescent current is typically 2.5 mA.
Q: What package is available?
A: It is offered in a TO-220FP-5 package.
Base Product Number : BA12ST
12V 1A Fixed Output Industrial LDO Linear Regulator Rohm TO-220FP-5
Q: What is the output voltage of the BA12ST?
A: The BA12ST provides a fixed 12V output voltage.
Q: What is the maximum output current?
A: It can supply up to 1A of output current.
Q: What is the input voltage limit?
A: The maximum input voltage is 12V.
Q: What is the quiescent current?
A: The quiescent current is typically 2.5 mA.
Q: What package is available?
A: It is offered in a TO-220FP-5 package.