MAX6125ESA

Overview

The MAX6125ESA is a low-dropout, micropower three-terminal voltage reference providing a fixed 2.5V output in an 8-pin SO package. It operates with a supply voltage range of 2.7V to 12.6V and draws approximately 75µA of quiescent current independent of input voltage variations. The device features an initial accuracy of ±1% and a typical temperature coefficient of 15ppm/°C. Designed for stable performance across capacitive loads up to 10nF, it supports continuous operation within a temperature range of -40°C to +85°C.

Feature Summary

• Low dropout voltage capability of 200mV
• Micropower consumption with supply current virtually independent of input voltage
• Stable operation with capacitive loads up to 10nF

Applications

• 3V and 5V systems
• Battery-powered equipment
• Portable and hand-held devices
• Data-acquisition systems
• Instrumentation and process control

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and environmental compliance status. Ensure that any additional characters in the part number do not alter the electrical characteristics or pin configuration. Cross-reference the component identifier with authorized distributor catalogs to validate authenticity and traceability before finalizing procurement orders.

Selection Notes

Select this component when a fixed 2.5V precision reference is required in an 8-pin surface-mount package. Evaluate the 200mV dropout specification against the minimum available supply voltage to ensure proper regulation under all operating conditions. Consider the 75µA quiescent current draw for battery life calculations in portable applications requiring long-term stability.

Part Context

This component belongs to the MAX61xx family of low-cost, low-dropout voltage references manufactured by Analog Devices Inc./Maxim Integrated. The family includes variants offering different fixed output voltages such as 4.096V, 4.5V, and 5.0V, as well as an adjustable version. All members share similar micropower architectures and are designed for optimized operation in standard 3V and 5V electronic systems.

Replacement Considerations

Direct substitutes within the same family include the MAX6141ESA (4.096V), MAX6145ESA (4.5V), and MAX6150ESA (5.0V). These parts share identical pinouts and packaging but provide different preset output voltages.