ISL9005IRBZ-T

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

The ISL9005IRBZ-T is a single-output low-dropout (LDO) linear voltage regulator manufactured by Intersil. It provides a fixed 1.5 V output with a maximum load current of 300 mA. The device operates within an input voltage range of 2.3 V to 6.5 V and features a typical quiescent current of 75 µA. It offers high power supply rejection ratio (PSRR) of 75 dB and low output noise below 45 µV RMS. The regulator is housed in an 8-lead DFN (2x3 mm) surface-mount package and supports operation from -40°C to +85°C.

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

• High power supply rejection ratio for effective noise filtering
• Low output noise suitable for sensitive analog circuits
• Ultra-low quiescent current for extended battery life
• Fixed 1.5 V output voltage option

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

• Portable wireless equipment
• Battery-powered handheld devices
• RF front-end modules requiring clean power rails

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

Verify component authenticity through authorized channels due to potential counterfeits. Confirm RoHS compliance status via official datasheets. Check for end-of-life notices as availability may be limited. Ensure proper ESD handling during storage and assembly. Validate package marking against official specifications.

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

Select this LDO when low noise and high PSRR are critical for signal integrity. Consider the 300 mA output current limit for load requirements. Evaluate thermal performance in the DFN-8 package under expected operating conditions. Compare quiescent current specifications against system power budgets.

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

The ISL9005 series belongs to Intersil's portfolio of low-power LDO regulators designed for portable applications. These devices emphasize low noise and high PSRR to support sensitive RF and analog circuits. The IRBZ suffix indicates a specific temperature grade and packaging variant within the ISL9005 family.

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

Direct substitutes include ISL9005AIRBZ-T and ISL9005AIRCZ-T, which share similar electrical characteristics but may differ in package type or specific parameter tolerances. Verify pin compatibility and thermal requirements before substitution.