MAX1686EUA+

Special Purpose Regulators Overview

The MAX1686EUA+ is a switching voltage regulator designed as a charge pump for SIM card applications. It operates with an input voltage range of 2.7 V to 4.2 V and provides a regulated output of 4.75 V. The device delivers a minimum output current of 12 mA through a single output channel. It functions at a switching frequency of 1 MHz and maintains operation within a temperature range of -40°C to +85°C. The component is housed in an 8-pin uMAX surface-mount package.

Special Purpose Regulators Feature Summary

• Integrated charge pump topology optimized for SIM card power regulation
• Includes soft-start, undervoltage lockout, and short-circuit protection mechanisms

Special Purpose Regulators Applications

• SIM card power supply regulation
• Special purpose voltage regulation in portable devices

Special Purpose Regulators Procurement Notes

Verify the specific suffix and manufacturer documentation when sourcing this component. Confirm that the part number matches the exact electrical specifications required for your design, particularly the 4.75 V output and 12 mA current capability. Ensure compatibility with the uMAX-8 package footprint during procurement planning.

Special Purpose Regulators Selection Notes

Select this component when a dedicated charge pump solution is required for SIM interfaces within a 2.7 V to 4.2 V input window. It is suitable for designs needing a stable 4.75 V rail with minimal external components. Consider the 1 MHz switching frequency for EMI management and the uMAX-8 package for space-constrained PCB layouts.

Special Purpose Regulators Part Context

This part belongs to the Maxim Integrated line of power management ICs, specifically categorized under switching regulators and charge pumps. It is manufactured by Analog Devices Inc./Maxim Integrated and serves as a specialized solution for low-power, high-voltage generation from low-voltage sources in mobile communication hardware.

Special Purpose Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.