MAX8885EUK50+

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The MAX8885EUK50+ is a low-dropout linear regulator delivering up to 150mA from a +2.5V to +6.5V input range. It features a fixed 5.0V output with ±1% accuracy and utilizes a P-channel MOSFET pass transistor for an 85µA no-load supply current independent of load. The device includes undervoltage power-OK output, short-circuit protection, thermal shutdown, and reverse-battery protection. It operates within a -40°C to +85°C temperature range in a 5-pin SOT23 package.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Optimized for stable operation with low-cost, high-ESR tantalum capacitors
• Features active-low open-drain Power-OK output indicating out-of-regulation conditions
• Includes comprehensive protection against thermal overload, short circuits, and reverse battery connections

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• PCS Phones
• Cellular Phones
• Hand-Held Instruments
• PCMCIA Cards

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix 'EUK50+' corresponds to the 5.0V fixed output variant. Confirm the component status as discontinued or limited availability through official manufacturer channels. Ensure compatibility with high-ESR output capacitors rather than ceramic types to maintain stability. Validate pin configuration matches the standard SOT23-5 layout before integration.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this regulator for cost-sensitive portable applications requiring reliable performance with inexpensive tantalum output capacitors. The P-channel architecture ensures consistent quiescent current across varying loads. Consider the MAX8875 if low-ESR ceramic capacitors are mandatory for the design. Verify that the 150mA output current meets the peak load requirements of the target circuit.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This component belongs to the MAX8885 series of low-dropout linear regulators manufactured by Analog Devices / Maxim Integrated. The series provides various preset output voltages including 2.5V, 2.7V, 3.0V, 3.3V, and 5.0V. All variants share the same miniature SOT23-5 package and core protection features, differing primarily in their internal feedback voltage dividers.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

The MAX8875 is a pin-compatible, functionally equivalent alternative designed specifically for use with low-ESR ceramic output capacitors.