BD33KA5FP-E2

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

The BD33KA5FP-E2 is a secondary LDO regulator from ROHM Semiconductor, designed for low power consumption and small size. It provides a fixed 3.3V output with ±1% accuracy at 25°C. The device supports up to 0.5A output current with a typical dropout voltage of 0.12V at 0.2A. It operates within an input voltage range of 2.3V to 5.5V and features a ripple rejection of 50dB. Integrated protections include overcurrent and thermal shutdown. The component is housed in a TO-252-3 (DPak) package and functions reliably across a temperature range of -40°C to +105°C.

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

• Integrated overcurrent protection and thermal shutdown circuits ensure high reliability against short circuits and overload conditions.
• Low saturation design with PNP output transistor enables stable operation with minimal voltage drop.
• High output voltage accuracy of ±1% ensures precise local power supply performance.
• Compact TO-252-3 package facilitates space-constrained board layouts.

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

• Local power supplies for PCs
• Hard disk drives (HDD)
• Television systems
• Car audio systems

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

Verify the specific suffix E2 confirms RoHS compliance and lead-free status as per manufacturer documentation. Confirm the TO-252-3 package designation matches your PCB footprint requirements. Ensure input voltage constraints between 2.3V and 5.5V align with your system design. Check that the 0.5A current capability meets load demands without exceeding thermal limits.

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

Select this component when a fixed 3.3V rail is required with high precision and moderate current drive. The TO-252-3 package offers better thermal dissipation than smaller SOT packages. Consider the 50dB ripple rejection for noise-sensitive analog sections. Verify that the operating temperature range covers your environmental conditions.

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

This part belongs to ROHM's secondary LDO regulator series, which focuses on miniaturization and energy efficiency. The series includes various output voltages and packages to suit diverse applications like consumer electronics and automotive audio. These regulators are engineered to maximize device performance through low noise and stable operation.

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

BD33KA5WFP-E2: Similar 3.3V fixed output but in TO-252-5 package. BD25KA5FP-E2: Same package and current rating but outputs 2.5V. BD33C0AWFP-E2: Higher current capacity (1A) but different package and input range.