BA7809CP-E2

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The BA7809CP-E2 is a fixed linear voltage regulator from the ROHM BA78 series, providing a positive 9 V output with a maximum current of 1 A. It operates within an input voltage range of 11.5 V to 26 V and features a TO-220CP-3 through-hole package. The device supports an operating temperature range from -40°C to +85°C, with a power dissipation rating of 22 W. Key electrical specifications include a line regulation of 6 mV, load regulation of 20 mV, and a typical PSRR of 64 dB.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Integrated overcurrent protection circuit for short-circuit safety
• Built-in thermal shutdown circuit to prevent overheating damage
• High ripple rejection characteristics for stable power supply applications

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• General purpose linear voltage regulation in electronic circuits
• Power supply units requiring fixed 9 V output
• Embedded systems and industrial control equipment

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for end-of-life notifications, as this part may be subject to discontinuation. Ensure packaging integrity matches specified tape-and-reel or cut-tape requirements for surface mount or through-hole assembly processes.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select the BA7809CP-E2 when a fixed 9 V output at 1 A is required with through-hole mounting. Compare against the BA7809FP-E2 if surface mount (TO-252-3) packaging is preferred. Consider input voltage headroom requirements, as minimum input is 11.5 V. Evaluate thermal management needs due to 22 W power dissipation capability in the TO-220CP-3 package.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This component belongs to the BA78 series of linear regulators manufactured by ROHM Semiconductor. The series includes various fixed output voltages and packages, such as TO-220CP-3 and TO-252-3. The BA7809CP-E2 specifically denotes the 9 V version in the standard through-hole package, offering robust protection features common across the family.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

BA7809FP-E2: Surface mount equivalent in TO-252-3 package with identical electrical performance.