BA033T

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

The BA033T is a fixed-output low-dropout (LDO) voltage regulator manufactured by Rohm Semiconductor. It provides a stable 3.3V output with a maximum current capacity of 1A. The device operates within an input voltage range of 4V to 25V and withstands up to 35V. Key electrical parameters include a typical dropout voltage of 0.3V at 0.5A, ripple rejection of 55dB, and load regulation of 50mV. It features ±2.0% output accuracy at 25°C and a quiescent circuit current of 2.5mA. The component is housed in a TO-220FP-3 package and supports an operating temperature range from -40°C to +125°C.

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

• PNP output transistor architecture for low saturation voltage
• Integrated thermal shutdown and over-current protection circuits
• Fixed 3.3V output with high precision regulation

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

• General-purpose linear power supply regulation
• Battery-powered equipment requiring stable 3.3V rails
• Industrial control systems with wide input voltage variations

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

Verify the exact suffix code (e.g., T, FP, WFP) as it determines the specific package type and pin configuration. Confirm RoHS compliance status and lead times with authorized distributors. Ensure the selected variant matches the required thermal management capabilities for the intended application environment.

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

Select this component when a robust 1A LDO with PNP output characteristics is required. Consider the TO-220FP-3 package for through-hole mounting and superior heat dissipation compared to surface-mount alternatives. Verify that the input voltage does not exceed the 35V withstand limit under all transient conditions.

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

The BA033T belongs to Rohm's BA series of fixed-output LDO regulators. This family utilizes PNP output transistors to achieve lower dropout voltages compared to standard NPN designs. The series is designed for applications requiring reliable linear regulation with built-in protection mechanisms against thermal overload and short circuits.

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

Compatible substitutes include the BA03CC0T and BA033CC0WFP-E2. These parts share similar electrical specifications but may differ in package type or additional features such as shutdown pins. Verify pin compatibility and thermal performance before substitution.