MAX6002EUR+T

Overview

The MAX6002EUR+T is a micropower, low-dropout series voltage reference from the MAX6001–MAX6005 family. It provides a nominal output voltage of 2.5V with a maximum initial accuracy of 1% and a temperature coefficient of 100ppm/°C. The device operates within an input voltage range of (VOUT + 0.2V) to 12.6V and draws a maximum quiescent supply current of 45µA. It supports ±400µA output source and sink currents with a typical dropout voltage of 100mV at 400µA load. The component is housed in a SOT-23-3 package and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Eliminates the need for external biasing resistors by functioning as a series-mode reference with supply current virtually independent of input voltage.
• Internally compensated design ensures stability with capacitive loads ranging from 0 to 2.2nF without requiring external compensation components.
• Offers low power dissipation suitable for battery-operated systems through micropower operation and high efficiency over wide supply voltage variations.

Applications

• Portable and battery-powered equipment
• Notebook computers
• PDAs, GPSs, and digital multimeters (DMMs)
• Cellular phones and pagers
• Hard-disk drives

Procurement Notes

Verify the specific suffix 'EUR+T' corresponds to the SOT-23-3 surface-mount package and the standard operating temperature range of -40°C to +85°C. Confirm that the '+T' designation indicates tape-and-reel packaging if reel handling is required for assembly. Ensure compatibility with the 2.5V output requirement, as other members of the MAX600x family provide different fixed voltages.

Selection Notes

Select this component when a low-cost, space-saving voltage reference is needed for 3V or 5V battery systems. It is appropriate for applications requiring minimal board area due to the elimination of external resistors and compensation capacitors. Consider the 45µA quiescent current limit and the ability to source/sink up to 400µA when designing for power-sensitive portable electronics.

Part Context

This part belongs to the MAX6001–MAX6005 family of low-cost, low-power, low-dropout voltage references manufactured by Analog Devices / Maxim Integrated. These devices combine the cost advantages of shunt references with the power-saving benefits of series references. The family shares identical pinouts and physical characteristics, differing primarily in their fixed output voltage levels.

Replacement Considerations

Other members of the MAX6001–MAX6005 family share the same SOT-23-3 footprint and electrical interface. Substitution requires matching the specific output voltage; for example, the MAX6001 provides 1.25V and the MAX6005 provides 5.0V. Verify that the alternative part number meets the required 2.5V output specification.

FAQ

Does the MAX6002EUR+T require an external capacitor for stability?

No, the device is internally compensated and stable with capacitive loads ranging from 0 to 2.2nF. An external capacitor is optional and primarily used to improve transient response or reduce overshoot.

How does the supply current behave relative to the input voltage?

The quiescent supply current is virtually independent of the supply voltage, varying by only 0.8µA/V. This characteristic maximizes efficiency compared to conventional shunt references.