Part Number: BA09CC0FP-E2

Manufacturer: Analog Devices Inc


Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of BA09CC0FP-E2

Datasheet  BA09CC0FP-E2 datasheet
Category Integrated Circuits (ICs)
Family PMIC – Voltage Regulators – Linear
Manufacturer Rohm Semiconductor
Packaging Tape & Reel (TR)
Part Status Active
Regulator Topology Positive Fixed
Voltage – Output 9V
Current – Output 1A
Voltage – Dropout (Typical) 0.3V @ 500mA
Number of Regulators 1
Voltage – Input Up to 25V
Current – Limit (Min)
Operating Temperature -40°C ~ 125°C
Mounting Type Surface Mount
Package / Case TO-252-3, DPak (2 Leads + Tab), SC-63
Supplier Device Package TO-252-3

BA09CC0FP-E2 General Description

Low-saturation regulators with 2A or 1A fixed outputs are known as “standard fixed output regulators.” ROHM has a wide output voltage range and several package options, including those with and without safety switches. This IC includes a safety mechanism to limit the current flowing via its output pins, preventing the IC from being damaged by a short circuit. Also, the IC is safe from harm caused by overheating thanks to an included thermal shutdown circuit. Additionally, the IC’s power supply line is safeguarded by a circuit that shuts down the supply when an abnormal voltage is detected. These three circuits work together to protect the IC from damage.

BA09CC0FP-E2 Features

  • 1% extremely high accuracy for the output voltage (BAxxDD0xx)
  • PNP output while maintaining a low level of saturation.
  • The IC is protected from destruction by output short circuits thanks to an in-built over-current protection circuit.
  • There is a built-in thermal shutdown circuit to prevent the integrated circuit from being harmed by overheating.
  • An integrated circuit that protects against excessive voltage prevents the IC from being damaged by an excessively rapid increase in the electrical power supply.


The characteristics of an integrated circuit (IC) are highly dependent on the operating temperature. If the temperature is allowed to rise over the maximum junction temperature TjMAX., the elements in the IC are at risk of becoming damaged or destroyed. It is essential to think carefully about IC heat from the perspective of rapid destruction and long-term operation reliability. It is required to run the integrated circuit (IC) at temperatures lower than the maximum junction temperature TjMAX of the IC to prevent any thermal damage from occurring to the IC.

Package, The range of acceptable losses achieved by using just the IC by itself is represented by the section cut off by the diagonal line. Even though the ambient temperature Ta is at a typical temperature of 25 degrees Celsius, the chip’s temperature, also known as the junction, can be relatively high. Because of this, the IC must be operated at temperatures lower than the tolerable loss Pd.

Peripheral Circuit Considerations

● Vcc Terminal

You need to install a capacitor between the Vcc and the GND with a value of more than 0.33 uF. When designing the terminal, it is essential to remember that the capacitance values will differ depending on the application because this factor must be considered.

● GND Terminal

Both the set ground and the IC ground must be maintained at the same potential level to prevent a difference in potential from developing.

Suppose there is a potential difference between the ground set and the ground used by the integrated circuit. In that case, the voltage set will not be outputted, resulting in the system becoming unstable. Therefore, please decrease the impedance by making the ground patterns as wide as possible and minimizing the distance separating the set ground and the IC ground as much as possible.

● CTL Terminal

If the operating power supply voltage range is between 0.8V and 2.0V, the CTL terminal will be switched ON at 2.0V or higher and turned OFF at 0.8V or lower. This occurs when the voltage exceeds the operating power supply voltage range. The order in which you install the CC0xx series, power supply, and CTL terminal makes no difference.

Operational Notes

Protection Circuits

Over-current Protection Circuit

When there are load shorts, an integrated circuit with a built-in over-current safety circuit proportional to the current capacity prevents the IC from being destroyed. To avoid damage from transiently high currents caused by high-capacitance capacitors, this protection circuit uses a “7”-shaped current control circuit to limit current and prevent latching. The design of this protection circuit allows for the current to be restricted and not latch even when a large current momentarily flows through the system with a high cap. However, even though this protective circuit is excellent at preventing destruction brought on by unanticipated mishaps, it is not appropriate for either continuous operation or use in situations involving transitory conditions. When developing thermal systems designs, please remember that the overcurrent protection circuit has characteristics opposite to the current capacity when the temperature is included.

Thermal Shutdown Circuit (Thermal Protection)

The integrated circuit within this system is guarded against damage caused by excessive heat by a temperature protection circuit that is an integral part of the system. This must be utilized within the range of permissible loss; nevertheless, if the acceptable loss occurs to be consistently exceeded, the temperature of the chip, Tj, will increase, which will trigger the temperature protection circuit to activate. When the thermal shutdown circuit is put into action, normal operations of the circuit are halted.

What exactly is a low dropout voltage regulator (LDO)?

In electronics, a linear regulator known as a low dropout (LDO) regulator is used to maintain a constant output voltage from a lower input voltage.

A linear regulator, a type of IC used in power supplies, maintains a constant output voltage regardless of fluctuations in the supply voltage. This type of regulator is utilized in a wide range of electronic devices. If you use an LDO regulator, you will be able to regulate heat accumulation better and make more effective use of the available energy because of the LDO regulator’s ability to function at a minimal potential difference between the input and output voltage.

The following is a simple explanation of the fundamental function, characteristics, and use of a linear regulator (also known as a linear regulator).

Final Thoughts

ROHM’s LDO regulators are designed to work with a wide variety of power supplies and continue the trend toward growing miniaturization while increasing power efficiency. Models with varying output voltages and packaging, as well as units with and without a shutdown switch, are all part of the extensive product selection. These low saturation fixed output kinds come in ratings of 1A, 2A, and 0.3A. If the voltage range of the working power supply is between 0.8V and 2.0V, the CTL terminal will be switched ON at 2.0V or higher, and it will be turned OFF at 0.8V or lower. The CTL terminal will not be switched ON if the operating power supply voltage range is between 0.8V and 4.0V.

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