MAX5005BCUB+

Overview

The MAX5005BCUB+ is a low-dropout linear regulator designed for USB applications, manufactured by Analog Devices Inc. under the Maxim Integrated brand. It provides a fixed 3.3 V output with a maximum current capability of 150 mA. The device operates within an input voltage range of 4 V to 5.5 V and features a typical dropout voltage of 300 mV at full load. It includes integrated protection mechanisms such as a 15 kV TVS diode and a power-on reset circuit. The component is housed in a compact 10-pin uMAX/uSOP surface-mount package and supports operation across a temperature range of 0°C to +70°C.

Feature Summary

• Integrated 15 kV electrostatic discharge (ESD) protection via built-in transient voltage suppression diodes.
• Built-in power-on reset generator ensures reliable system startup sequencing.
• Optimized for USB peripheral power supply applications requiring stable regulated voltage.
• Compact 10-lead micro-small outline package facilitates space-constrained board layouts.

Applications

• USB-powered peripheral devices
• Portable electronic equipment requiring regulated 3.3 V logic supplies
• Systems needing ESD-protected power rails

Procurement Notes

Verify the specific suffix (+) indicates lead-free compliance when sourcing. Confirm the BCUB package designation matches the required 10-lead uMAX or uSOP footprint for PCB design compatibility. Ensure the fixed 3.3 V output aligns with target circuit requirements, as adjustable variants are not available in this specific part number. Cross-reference manufacturer documentation for any recent lifecycle status updates.

Selection Notes

Select this component when a fixed 3.3 V rail is required for USB peripherals with strict ESD immunity needs. The 150 mA output current limits suitability for high-power loads; consider alternative regulators if higher current is necessary. The integrated reset function simplifies design by removing external components typically needed for power monitoring. Verify that the 4 V minimum input voltage accommodates the source supply variations in the application environment.

Part Context

This device belongs to the MAX5005 series of USB LDO regulators from Maxim Integrated. It is categorized under PMIC - Power Management ICs. The product line focuses on providing robust power solutions for portable electronics with integrated protection features. The MAX5005BCUB+ represents a specific variant with fixed voltage output and enhanced ESD capabilities compared to standard LDOs.

Replacement Considerations

Public confirmed substitute part numbers: None identified in provided documentation.