MAX4914BELT+

Overview

The MAX4914BELT+ is a single-channel current-limiting power switch manufactured by Maxim Integrated, part of the MAX4914B/MAX4915A/B/MAX4917A/B family. It operates within an input voltage range of 2.3V to 5.5V and features a low on-resistance of 0.2Ω. The device provides a guaranteed current limit of 100mA and includes a fixed blanking time of 14ms upon turn-on to allow transient voltages to settle. It is housed in a 6-pin VSON package (SOLCC6,.08,25) with dimensions of 2mm length. The component supports an operating temperature range from -40°C to +85°C and is RoHS compliant.

Feature Summary

• Integrates internal current limiting to protect host devices from faulty load conditions
• Features low 0.2Ω on-resistance for efficient power transmission
• Includes a guaranteed 14ms blanking time to manage transient voltages during startup

Applications

• SDIO load switching applications
• Portable device power management
• General load switching circuits requiring current protection

Procurement Notes

Verify that the specific suffix 'BELT' corresponds to the VSON-6 package and tape-and-reel delivery format as documented in the official datasheet. Confirm that the 100mA current limit specification matches the design requirements, as this variant differs from the 200mA and 300mA options within the same family. Ensure compatibility with the 2.3V to 5.5V supply range and check for any specific handling instructions related to the moisture sensitivity level indicated in the component specifications.

Selection Notes

Select the MAX4914BELT+ when a single-channel solution with a precise 100mA current limit is required for low-voltage applications. Consider the 0.2Ω on-resistance for minimal power loss and the 14ms blanking time for stability in sensitive loads. Compare against other family members like the MAX4915 or MAX4917 if higher current thresholds are needed. Ensure the VSON-6 package fits the PCB layout constraints and that the -40°C to +85°C temperature range meets the operational environment standards.

Part Context

The MAX4914BELT+ belongs to a family of analog switches designed for portable electronics and SDIO interfaces. These switches share common architectural features such as low on-resistance and internal current limiting but vary in current threshold ratings. This specific part represents the 100mA option within the MAX4914B/MAX4915A/B/MAX4917A/B series, offering a compact solution for protecting downstream components from overcurrent events in space-constrained designs.

Replacement Considerations

Direct substitutes within the same family include the MAX4915BELT+ (200mA limit) and MAX4917BELT+ (300mA limit), provided the application can tolerate the different current thresholds. Other variants may require verification of package compatibility and electrical parameter alignment.