BA17809CP-E2

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

The BA17809CP-E2 is a linear voltage regulator from the BA78 series, manufactured by ROHM Semiconductor. It provides a fixed 9 V output with a maximum current of 1 A. The device operates within an input voltage range of 11.5 V to 26 V and withstands up to 35 V. Key electrical parameters include ±4.0% output accuracy, 4.5 mA circuit current, 6 mV line regulation, 20 mV load regulation, and 64 dB typical PSRR. It features thermal shutdown and overcurrent protection, operates between -40°C and +85°C, and is housed in a TO-220CP-3 package.

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

• Integrated overcurrent protection and thermal shutdown circuits for enhanced reliability.
• Good ripple suppression characteristics for stable power delivery.
• Fixed output voltage type with high accuracy.

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

• General purpose linear voltage regulation
• Power supply units requiring 9V fixed output
• Electronic equipment power management

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

Verify the specific suffix (E2) against the manufacturer's latest documentation to confirm compliance status and pinout compatibility. Confirm that the TO-220CP-3 package matches the target PCB footprint requirements. Check for any end-of-life notices or obsolescence warnings associated with this specific part number before finalizing procurement plans.

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

Select this component when a fixed 9 V output at 1 A is required with through-hole mounting. It is suitable for applications needing basic linear regulation with built-in safety protections like thermal shutdown and overcurrent limiting. Consider the TO-220CP-3 package size and thermal dissipation capabilities relative to the expected power loss in the design.

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

This part belongs to the BA78 series of positive voltage regulators produced by ROHM Semiconductor. These regulators are designed as drop-in replacements for standard 78-series devices but offer improved performance metrics such as better ripple rejection and tighter output accuracy. The series is widely used in consumer electronics and industrial control systems.

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

BA7809CP-E2 is listed as an alias for this component. Ensure that any substitute maintains the same TO-220CP-3 package and electrical specifications to guarantee mechanical and functional compatibility without redesigning the host circuit board.