LDI734C2.5EN

Overview

The Diotec Semiconductor LDI734C2.5ENG is a linear voltage regulator featuring a capacitor-free Low Dropout Regulator (LDO) design within the VR series. It provides a fixed positive output voltage of 2.5 V with a maximum output current capability of 300 mA. The device operates with an input voltage range up to 6 V and maintains a low quiescent current of 30 µA. It is housed in a compact DFN-4 surface-mount package, ensuring suitability for space-constrained applications while supporting an extended operating temperature range from -50 °C to +150 °C.

Feature Summary

• Capacitor-free stability eliminates the need for external output capacitors, simplifying circuit design and reducing component count.
• Fixed 2.5 V output voltage ensures precise regulation without requiring external feedback resistors.
• High thermal performance supports operation in demanding environments with a maximum junction temperature rating of 150 °C.

Applications

• Portable battery-powered devices requiring stable low-voltage rails
• Embedded systems needing compact power regulation solutions
• Industrial control modules operating in wide temperature ranges

Procurement Notes

Verify the complete part number suffix, specifically 'ENG', to confirm RoHS compliance and packaging type. Confirm availability status as distribution channels may indicate regional sales restrictions or new product lifecycle stages. Ensure the selected variant matches the required 2.5 V output specification and DFN-4 footprint for PCB integration.

Selection Notes

Select this component when a fixed 2.5 V rail is required with minimal external components. The capacitor-free feature reduces board space and cost compared to traditional LDOs. Verify that the load current does not exceed 300 mA and that the input voltage remains within the 6 V limit to ensure proper dropout performance and thermal management.

Part Context

This device belongs to the Diotec LDI734 series of voltage regulators. The series offers various fixed output voltages, such as 1.8 V and 3.0 V, sharing the same DFN-4 package and electrical characteristics. The LDI734C2.5ENG specifically targets applications requiring a 2.5 V supply, maintaining consistency with the series' high efficiency and compact form factor.

Replacement Considerations

Check for direct substitutes within the LDI734 family offering different fixed voltages if system requirements change. Verify pin compatibility and thermal characteristics when replacing with other capacitor-free LDOs from different manufacturers to ensure equivalent performance in the existing design.