ADP5034AREZ-1-R7

Overview

The ADP5034AREZ-1-R7 is a high-integration power management IC from Analog Devices, featuring four synchronous buck regulators and two low-dropout linear regulators. It operates with an input voltage range of 2.3 V to 5.5 V and delivers output currents up to 1.2 A for the buck channels and 300 mA for the LDOs. The device utilizes a 3 MHz switching frequency to minimize external component size. It is housed in a 28-lead TSSOP-EP package and supports adjustable output voltages via external resistors. The unit functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates four synchronous buck converters and two LDOs for comprehensive multi-rail power generation.
• Features dedicated enable pins for each regulator channel to allow precise individual control.
• Supports adjustable output voltages using external resistor divider networks for flexible configuration.
• Includes power good indicators and programmable soft-start capabilities for system stability.

Applications

• Processor system power management requiring multiple voltage rails
• USB-powered portable electronic devices
• Handheld medical instrumentation
• Multi-voltage power supplies for ASICs and FPGAs

Procurement Notes

Verify the specific suffix '-1' against the official datasheet to confirm pinout and functional variations compared to standard variants. Ensure the TSSOP-EP-28 package footprint matches the PCB design. Confirm RoHS compliance status through the manufacturer's documentation before finalizing procurement specifications.

Selection Notes

Select this component when designing systems that require four independent buck outputs and two LDOs from a single 2.3 V to 5.5 V source. It is suitable for space-constrained applications due to the 3 MHz switching frequency. Consider the thermal performance of the exposed pad package if operating near maximum current limits.

Part Context

This part belongs to the ADP5034 family of power management ICs designed by Analog Devices. The series targets applications needing high integration and flexibility in portable electronics. The 'AREZ-1-R7' designation indicates the specific package type, temperature grade, and reel packaging format provided by the manufacturer.

Replacement Considerations

Consult the official datasheet for direct pin-to-pin compatible alternatives within the ADP5034 or ADP5024 families. Verify that any substitute maintains the same number of buck and LDO channels and similar electrical characteristics.

FAQ

What is the switching frequency of the ADP5034AREZ-1-R7?

The device operates at a fixed switching frequency of 3 MHz.

Can the output voltages be adjusted?

Yes, all four buck regulators and two LDOs support adjustable output voltages set by external resistor dividers.

Does the device include power monitoring features?

Yes, the IC provides power good signals to indicate when the regulated outputs are within their specified ranges.