BA178M20T

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

The BA178M20T is a fixed linear voltage regulator from the ROHM BA178M series, providing a nominal output of 20 V. It supports a maximum output current of 500 mA and operates within an input voltage range of 23 V to 33 V. The device features a TO-220FP-3 through-hole package with three pins. Electrical specifications include a line regulation of 10 mV and load regulation of 20 mV. It maintains a typical power dissipation rating of 10 W and offers a ripple rejection ratio of 78 dB at 120 Hz. The component functions reliably across an operating temperature range of -40 °C to +85 °C.

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

• Integrated overcurrent protection circuit for enhanced reliability
• Built-in thermal shutdown circuit to prevent overheating damage
• High ripple rejection characteristics for stable output

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

• General purpose linear voltage regulation in electronic circuits
• Power supply modules requiring fixed positive voltage outputs
• Embedded systems utilizing standard 78-series regulator architectures

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

Verify the specific suffix designation against official ROHM documentation to confirm exact electrical tolerances and package variations. Ensure that the selected variant matches the required thermal management capabilities for the intended application environment. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm current availability status and compliance with relevant environmental standards such as RoHS directives before finalizing procurement decisions.

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

Select this component when a fixed 20 V output is required with moderate current demands up to 500 mA. The TO-220FP package facilitates efficient heat dissipation for applications involving higher power loads. Consider the minimum input voltage requirement of 23 V to ensure adequate dropout voltage margin under all operating conditions. Evaluate thermal resistance parameters to determine if additional heatsinking is necessary for sustained operation at maximum current levels within the specified temperature range.

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

The BA178M20T belongs to the BA178M series of linear regulators manufactured by ROHM Semiconductor. This series is designed as a surface-mount or through-hole alternative to traditional discrete regulator solutions, offering integrated protection features. The component is categorized under PMIC linear voltage regulators, specifically engineered for positive fixed voltage applications. It serves as a robust solution for power management tasks where stability and built-in safety mechanisms are prioritized over adjustable output configurations.

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

BA178M20CP-E2: Pin-compatible replacement with identical electrical specifications in a TO-220CP-3 package.