ISL21010CFH333Z-TK

Overview

The ISL21010CFH333Z-TK is a precision micropower bandgap voltage reference manufactured by Renesas Electronics Corporation. It provides a fixed output voltage of 3.3V with an initial accuracy of ±0.2%. The device operates within an input voltage range of 3.4V to 5.5V and supports a maximum output current of 25mA. Key electrical parameters include a temperature coefficient of 15ppm/°C, low-frequency noise of 95µVp-p (0.1Hz to 10Hz), and a supply current of 100µA. It functions reliably across a temperature range of -40°C to +125°C.

Feature Summary

• Delivers high-precision voltage regulation with ±0.2% initial accuracy for sensitive analog circuits.
• Features ultra-low power consumption with a typical supply current of 100µA.
• Provides robust load drive capability with up to 25mA output current sourcing.
• Ensures stable performance over wide temperature variations with a low temperature coefficient.

Applications

• Battery-powered portable instrumentation
• Precision data acquisition systems
• Medical electronics requiring stable reference voltages

Procurement Notes

Verify the specific suffix 'TK' corresponds to the Cut Tape packaging format when ordering. Confirm that the input voltage supplied to the circuit exceeds the minimum requirement of 3.4V to ensure proper operation. Ensure the PCB layout accommodates the SOT-23-3 package dimensions. Cross-reference the manufacturer datasheet for thermal dissipation requirements under maximum load conditions.

Selection Notes

Select this component when a fixed 3.3V reference with tight tolerance is required in space-constrained designs. It is suitable for applications where low quiescent current is critical for battery life. Consider the 25mA output capability if driving moderate loads directly. Verify compatibility with the system's input voltage range, as the minimum operating voltage is 3.4V.

Part Context

This part belongs to the ISL21010 series of micropower voltage references from Renesas. The series offers various fixed output voltages including 1.024V, 2.5V, and 4.096V. All variants share similar characteristics such as low dropout voltage and high accuracy, packaged in the compact SOT-23 form factor for efficient board space utilization.

Replacement Considerations

Direct substitutes within the same family include ISL21010CFH333Z-T7A and ISL21010CFH333Z-TK. These parts offer identical electrical specifications but may differ in packaging format or reel quantity. Verify pinout compatibility before substitution.