ISL21010CFH333Z-T7A

Overview

The ISL21010CFH333Z-T7A is a precision micropower bandgap voltage reference manufactured by Renesas Electronics Corporation. It provides a fixed output voltage of 3.3 V with an initial accuracy of ±0.2%. The device operates within an input voltage range of 3.4 V to 5.5 V and supports a maximum source current of 25 mA. It features a low temperature coefficient of 15 ppm/°C and functions across a wide operating temperature range from -40°C to +125°C. Packaged in a compact SOT-23-3 surface-mount format, it is designed for space-constrained applications requiring high stability.

Feature Summary

• Delivers high-precision voltage regulation with ±0.2% initial accuracy using bandgap technology.
• Enables extended battery life through micropower operation and low supply current consumption.
• Maintains stable performance across extreme industrial temperatures with a low temperature coefficient.
• Provides robust load driving capability with up to 25 mA output current sourcing.

Applications

• Battery management and monitoring systems
• Portable instrumentation devices
• Consumer and medical electronics
• Power regulation circuits

Procurement Notes

Verify the specific suffix T7A corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the 3.3 V output variant matches the system design requirements. Ensure compatibility with the SOT-23-3 footprint during PCB layout. Check for any recent product change notifications regarding manufacturing site or material composition updates from Renesas.

Selection Notes

Select this component when a fixed 3.3 V reference with tight tolerance is required in a minimal footprint. The low dropout characteristic allows operation close to the minimum input voltage threshold. Consider the 15 ppm/°C temperature coefficient for environments with significant thermal fluctuations. Evaluate the 25 mA sourcing capability against the downstream circuit load demands to ensure adequate drive strength without exceeding specifications.

Part Context

This part belongs to the ISL21010 series of micropower voltage references, which offers various fixed output voltages including 1.024V, 2.5V, and 4.096V. The series is characterized by its small SOT-23 package and low power consumption, making it suitable for portable and battery-operated equipment. The CFH333 designation specifically indicates the 3.3 V output version within this family.

Replacement Considerations

Direct substitutes include other parts from the ISL21010 series with different output voltages if the voltage level can be adjusted in the design. Verify pinout compatibility with the SOT-23-3 package before considering alternatives from other manufacturers. Ensure replacement components meet the same ±0.2% accuracy and 15 ppm/°C temperature coefficient standards.