ISL9021AIRUBZ-T

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

The ISL9021AIRUBZ-T is a single-channel low-dropout (LDO) linear voltage regulator manufactured by Renesas Electronics Corporation. It provides a fixed positive output voltage of 1.5V with a maximum continuous load current capability of 250mA. The device operates within an input voltage range of 1.5V to 5.5V and features a typical quiescent current of 50µA. It is housed in a compact 6-UTDFN package measuring 1.6x1.6mm. The regulator includes comprehensive protection mechanisms such as overcurrent, thermal shutdown, reverse polarity, short-circuit, and soft-start functionality.

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

• High-performance LDO design ensuring stable regulation under varying load conditions
• Integrated multi-protection scheme including overcurrent, thermal shutdown, and reverse polarity defense
• Compact surface-mount packaging optimized for space-constrained portable applications

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

• Portable consumer electronics requiring low-noise power supplies
• Battery-powered devices utilizing low-input voltage ranges
• Embedded systems needing reliable fixed-voltage regulation

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

Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS3 compliance and MSL level 1 specifications during sourcing. Check for alternative packages if lead availability is constrained. Validate datasheet revisions against production batches to ensure parameter consistency.

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

Select this component when a fixed 1.5V output is required with minimal footprint. Consider the 250mA current limit for moderate load demands. Evaluate input voltage stability to ensure operation above the minimum threshold. Assess thermal management requirements given the small package size and potential power dissipation.

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

Part of the ISL9021A series, which offers various fixed output voltages ranging from 1.2V to 3.3V. The series shares common architectural features including high PSRR and low noise characteristics. This specific variant targets applications necessitating precise 1.5V rail generation within tight spatial constraints.

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

Consult official substitution lists for equivalent performance. Verify pin compatibility and electrical parameters before integration. Ensure thermal and mechanical specifications match existing board designs.