MCP1525T-I/TT

Overview

The MCP1525T-I/TT is a precision voltage reference IC manufactured by Microchip Technology, providing a fixed output of 2.5V. It utilizes advanced CMOS circuit design and EEPROM trimming to achieve an initial accuracy of ±1% and a temperature drift of ±50 ppm/°C. The device operates within an input voltage range of 2.7V to 5.5V and features a maximum input current of 100 µA at +25°C. It supports an output current drive of ±2 mA and functions reliably across the industrial temperature range of -40°C to +85°C.

Feature Summary

• Combines advanced CMOS circuit design with EEPROM trimming for high stability
• Provides low quiescent current operation suitable for battery-powered systems
• Offers superior time and temperature stability compared to traditional Zener techniques

Applications

• Battery-powered Systems
• Handheld Instruments
• Data Acquisition Systems
• Precision Power Supplies
• A/D Converters (ADCs)

Procurement Notes

Verify that the ordering suffix 'TT' corresponds to the SOT-23-3 package and tape-and-reel configuration as specified in the datasheet. Confirm the 'I' designation indicates compliance with the industrial temperature range (-40°C to +85°C). Ensure the component matches the MCP1525 series specifications rather than the MCP1541 variant.

Selection Notes

Select this component when a stable 2.5V reference is required for low-power applications. It is suitable for designs where power consumption must be minimized, such as portable devices. Verify that the load capacitor requirements between 1 µF and 10 µF are met to ensure proper stabilization and noise performance.

Part Context

This part belongs to the MCP1525/41 family of precision voltage references from Microchip Technology. The MCP1525 specifically provides a 2.5V output, while the companion MCP1541 offers 4.096V. Both share similar architectural features but differ in nominal output voltage and specific input voltage operating ranges.

Replacement Considerations

MCP1525-I/TO: Identical electrical specifications and functionality, differing only in the TO-92 through-hole package instead of the SOT-23 surface-mount package.

FAQ

What is the minimum load capacitance required for stable operation?

A load capacitor between 1 µF and 10 µF is required to stabilize the voltage reference.

How does the MCP1525 compare to Zener diodes regarding stability?

The MCP1525 offers clear advantages over traditional Zener techniques in terms of stability across both time and temperature.