LDR2533BPT-R

Overview

The LDR2533BPT-R is a dual-output low-dropout linear voltage regulator manufactured by STMicroelectronics. It integrates two independent regulators within a single PPAK package, providing fixed output voltages of 2.5V and 3.3V. The device supports maximum output currents of 500mA for the 2.5V rail and 1A for the 3.3V rail. It operates with an input voltage range up to 15V, ensuring stable power delivery in compact designs requiring multiple voltage levels.

Feature Summary

• Dual-output architecture combining 2.5V and 3.3V regulation in one component
• Low dropout performance for efficient power management
• Compact PPAK packaging for space-constrained applications

Applications

• Portable electronic devices requiring multiple supply rails
• Embedded systems with mixed voltage logic requirements
• Battery-powered equipment needing efficient voltage conversion

Procurement Notes

Verify the exact suffix and marking on the component body to confirm the LDR2533BPT-R designation. Check manufacturer documentation for current lifecycle status, as availability may vary. Ensure compatibility with your PCB footprint and thermal requirements before ordering.

Selection Notes

Select this component when a design requires both 2.5V and 3.3V outputs from a single source. Consider the total current demand against the 500mA and 1A limits per channel. Evaluate thermal dissipation needs based on the input-to-output voltage differential and load conditions.

Part Context

This part belongs to STMicroelectronics' LDO linear voltage regulator family. These components are designed for noise-sensitive applications where clean power is critical. The dual-output variant simplifies board layout by reducing component count compared to using separate single-output regulators.

Replacement Considerations

Consult official substitution lists for compatible alternatives. Verify pinout compatibility and electrical specifications match before replacing.