MAX8640ZELT12+

Voltage Regulators - DC DC Switching Regulators Overview

The MAX8640ZELT12+ is a synchronous step-down switching regulator manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates with an input voltage range of 2.7V to 5.5V and provides a fixed output voltage of 1.2V. The device delivers up to 500mA of output current while maintaining high efficiency through a 2MHz switching frequency. Key electrical specifications include a maximum quiescent current of 28µA and a shutdown supply current of 10nA. It functions within a temperature range of -40°C to +85°C and utilizes a compact SC-70-6 surface-mount package for integration into space-constrained designs.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 500mA synchronous buck converter topology for efficient power conversion
• Features ultra-low shutdown current of 10nA to extend battery life in portable applications
• Supports flexible design options with selectable switching frequencies
• Includes built-in protection mechanisms against thermal overload and short circuits

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics requiring efficient power management
• Battery-powered devices needing extended operational time
• Embedded systems utilizing low-voltage logic components
• Mobile communication equipment with strict size constraints

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized distribution channels due to potential supply limitations. Confirm that the specific suffix corresponds to the required packaging format, such as cut tape or reel, as availability may vary by region. Ensure compliance with RoHS standards and check for any recent product change notices affecting manufacturing locations or materials before placing orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact footprint and low standby current are critical for system performance. The fixed 1.2V output suits digital core voltages directly. Evaluate thermal requirements based on the SC-70-6 package size and expected load conditions. Consider the 2MHz frequency for minimizing external passive component sizes compared to lower-frequency alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MAX8640 series of tiny synchronous step-down regulators designed for mobile and handheld applications. It represents a solution for managing power in environments where physical space is limited and energy efficiency is paramount. The series integrates control circuitry and power switches into a minimal outline package, distinguishing it from larger discrete solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official documentation for direct pin-compatible substitutes within the MAX8640 family. Verify that alternative parts match the 1.2V output specification and 500mA current capability. Cross-reference package dimensions and thermal characteristics to ensure mechanical fit.