MAX638ACPA+

Voltage Regulators - DC DC Switching Regulators Overview

The MAX638ACPA+ is a CMOS step-down switching regulator manufactured by Analog Devices Inc./Maxim Integrated. It operates within an input voltage range of 2.2 V to 16.5 V and provides an adjustable output voltage up to 16 V. The device delivers an output current of 75 mA with a fixed switching frequency of 65 kHz. It features a load regulation of 0.2 %/V and consumes 80 µA of operating supply current. Designed for through-hole mounting, it is housed in an 8-pin PDIP package and functions reliably across an extended temperature range from -40 °C to +85 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Provides efficient step-down voltage conversion using CMOS technology
• Supports wide input voltage ranges suitable for various power sources
• Features low quiescent current consumption for energy efficiency

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable equipment
• Telecommunications systems
• Industrial control circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'CPA+' indicates the PDIP-8 through-hole package variant distinct from surface-mount options. Confirm RoHS compliance status as documentation may vary by production batch. Check component lifecycle status, as this part may be discontinued or subject to limited availability constraints depending on current inventory levels.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a through-hole solution is required for buck conversion applications. Ensure the 75 mA output current meets system load requirements. Verify that the 65 kHz switching frequency aligns with electromagnetic interference constraints. Compare against surface-mount alternatives like the MAX638ACSA+ if board space optimization is necessary.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the MAX638 series of switching regulators designed for general-purpose DC-DC conversion. It serves as a robust alternative to linear regulators in applications requiring higher efficiency. The series supports both adjustable and fixed output configurations, catering to diverse power management needs in industrial and consumer electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The MAX638AEPA+ is a verified substitute offering similar electrical characteristics in a PDIP-8 package. Consider the MAX638ACSA+ for surface-mount implementations with identical functionality. Verify pin compatibility and thermal performance when transitioning between these variants.