ADP5138WACPZ-1-R7

Overview

The ADP5138WACPZ-1-R7 is a specialized Power Management IC (PMIC) from Analog Devices, designed for professional applications. It integrates four synchronous step-down regulators and one RF LDO regulator within a single package. The device supports an input voltage range of 1.7 V to 5.5 V. Each buck converter provides up to 1 A of output current, while the LDO offers adjustable output voltages ranging from 1 V to 3.3 V. The component operates reliably across a temperature range of -40°C to +125°C and is housed in a compact 28-LFCSP-WQ (4x4) package.

Feature Summary

• Integrates four high-current synchronous buck converters and one low-noise RF LDO regulator
• Supports wide input voltage range suitable for battery-powered systems
• Optimized for space-constrained professional electronic designs

Applications

• Portable professional audio equipment
• Wireless communication modules
• Industrial control systems requiring multiple regulated rails

Procurement Notes

Verify the specific suffix 'R7' indicates reel packaging when ordering. Confirm the 'W' variant meets environmental or automotive quality standards if required by your design specifications. Ensure compatibility with the ADP5138W-1-EVALZ development kit for initial validation. Check for moisture sensitivity levels prior to surface mount assembly processes.

Selection Notes

Select this PMIC when a single solution is needed to power multiple digital logic families and sensitive RF circuits simultaneously. The integrated nature reduces board space compared to discrete components. Consider the 1 A per buck channel capability against total system load requirements. Verify that the 28-pin LFCSP footprint fits within the mechanical constraints of the target enclosure.

Part Context

This part belongs to the ADP5138 family of multi-rail PMICs. It differs from other variants primarily through its specific output configurations and regulatory compliance markings indicated by the suffixes. The W-series often denotes specific manufacturing controls or environmental certifications distinct from standard commercial grades.

Replacement Considerations

Direct replacements include ADP5138ACPZ-1-R7 and ADP5138ACPZ-2-R7, though pinout and feature sets may vary slightly. Evaluate ADP5138WACPZ-2-R7 for alternative regulator configurations. Always cross-reference datasheets for electrical parameter differences before substitution.