BA33C25FP-E2

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

The BA33C25FP-E2 is a dual-output positive fixed LDO voltage regulator manufactured by ROHM Semiconductor. It provides two independent output channels with fixed voltages of 2.5V and 3.3V. Each channel supports a maximum output current of 1A, delivering a combined capacity suitable for multi-rail power systems. The device operates within an input voltage range of 4.1V to 16V and features a typical PSRR of 58dB at 120Hz. It utilizes a TO-252-3 package (DPAK) with an exposed thermal pad for efficient heat dissipation. The unit includes overcurrent and thermal shutdown protection functions.

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

• Dual-channel architecture providing simultaneous 2.5V and 3.3V fixed outputs
• Integrated overcurrent and thermal shutdown protection mechanisms
• Low dropout voltage characteristics for efficient power conversion
• High ripple rejection performance for stable signal regulation

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

• Multi-voltage rail power distribution in embedded systems
• Power management for microcontroller units requiring separate logic and I/O supplies
• Portable electronic devices utilizing battery-powered architectures
• Industrial control modules needing isolated regulated voltage sources

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 specific packaging variants such as tape and reel quantities. Review the latest product change notification (PCN) documents for any manufacturing updates or material changes. Ensure that the ordering suffix matches the required package type and environmental specifications before finalizing procurement orders.

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

Select this component when dual independent voltage rails are required from a single regulator footprint. The 1A per channel rating suits moderate load applications without excessive heatsinking. Consider the 16V maximum input limit when designing against high-voltage transients. Evaluate thermal resistance requirements based on the expected ambient temperature and PCB copper area available for heat spreading in the TO-252 package.

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

This part belongs to the BA33C series of low-dropout regulators designed for general-purpose power management. It complements single-output variants like the BA033CC0FP-E2 by offering integrated dual-rail capability. The series emphasizes reliability through built-in protection circuits and robust PNP output stage design. It serves as a compact solution for reducing component count in systems requiring multiple stable voltage levels.

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

Public confirmed substitute part numbers: None identified in provided documentation.