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The MAX6145ESA+ is a low-dropout, micropower, three-terminal voltage reference providing a fixed 4.5V output. It operates within a supply voltage range of 4.7V to 12.6V and delivers an initial accuracy of ±1%. The device features a typical temperature coefficient of 15ppm/°C, guaranteed under 50ppm/°C across the -40°C to +85°C operating range. Quiescent supply current is approximately 79µA at +25°C, remaining virtually independent of input voltage variations. It is housed in an 8-pin SO package.
Verify the specific ordering suffix against official manufacturer documentation to confirm package type and RoHS compliance status. Confirm availability through authorized distributors as stock levels fluctuate. Ensure the component matches the required electrical specifications for your design before procurement.
Select this component when a stable 4.5V reference is required in space-constrained designs. The 8-pin SO package offers a compact footprint suitable for surface-mount applications. Consider the low quiescent current for battery-operated devices where power efficiency is critical.
This part belongs to the MAX61xx family of low-cost, low-dropout voltage references manufactured by Analog Devices / Maxim Integrated. The family includes variants with different fixed output voltages (2.5V, 4.096V, 5.0V) and an adjustable version. All share similar micropower characteristics and low dropout performance.
Compatible substitutes within the same family include MAX6125ESA+, MAX6141ESA+, and MAX6150ESA+. These parts share identical pinouts and packaging but provide different fixed output voltages (2.5V, 4.096V, and 5.0V respectively). Verify that the system can tolerate the voltage difference.