ADP5043ACPZ-1-R7

Overview

The ADP5043ACPZ-1-R7 is a power management IC featuring an 800 mA buck regulator and a 300 mA LDO. It includes a power watchdog function. The input voltage range is 2.3 V to 5.5 V. The buck output voltages are fixed at 1.5 V and 3.3 V. The switching frequency is 3 MHz. The quiescent current is 100 uA. Load regulation is 0.002 %/mA. The operating temperature range is -40 C to +125 C. The package is LFCSP-20.

Feature Summary

• Integrates an 800 mA buck converter with a 300 mA low-dropout linear regulator.
• Includes a dedicated power watchdog circuit for system reliability monitoring.

Applications

• Portable battery-powered electronic devices
• Embedded systems requiring multiple regulated voltage rails
• Industrial control modules

Procurement Notes

Verify the specific suffix '-1' against official Analog Devices documentation to confirm fixed output configurations. Ensure the LFCSP-20 package dimensions match the target PCB footprint. Confirm RoHS compliance status through the manufacturer's latest certification documents before finalizing procurement orders.

Selection Notes

Select this component when a combined buck and LDO solution is required within a single package. Consider the 3 MHz switching frequency for smaller passive component sizes. Evaluate the 100 uA quiescent current against standby power requirements. Verify that the 800 mA and 300 mA output currents meet the load demands of the application.

Part Context

This part belongs to the ADP5043 series from Analog Devices, designed for compact power management applications. It combines switching and linear regulation technologies to provide efficient power conversion. The device targets designs needing space-constrained solutions with integrated protection features.

Replacement Considerations

Consult Analog Devices official cross-reference lists for verified substitutes. Do not assume functional compatibility based on pin count alone. Verify electrical parameters and package dimensions for any alternative parts.