ADP5033ACBZ-4-R7

Overview

The ADP5033ACBZ-4-R7 is a power management IC featuring two synchronous buck converters and two low-dropout linear regulators. It operates with an input voltage range of 2.3 V to 5.5 V and supports a switching frequency of 3 MHz. The device provides four outputs: two buck channels delivering up to 800 mA each, and two LDO channels providing up to 300 mA each. Fixed output voltages are set at 900 mV for the buck regulators and 2.8 V or 3 V for the LDOs. It functions within a temperature range of -40°C to +125°C and is housed in a WLCSP-16 package.

Feature Summary

• Integrates dual high-current synchronous buck regulators alongside dual low-noise LDOs for comprehensive power distribution.
• Supports high-frequency operation at 3 MHz to minimize external passive component size.
• Features integrated synchronous rectification for improved efficiency across load conditions.
• Includes shutdown functionality to reduce quiescent current consumption during inactive periods.

Applications

• Portable electronic devices requiring multiple regulated voltage rails from a single source
• Battery-powered systems needing efficient step-down conversion and clean analog supply
• Embedded applications utilizing microcontrollers or processors with mixed voltage requirements

Procurement Notes

Verify availability status as supply may be limited or subject to factory special orders. Confirm exact fixed output voltage configuration matches the specific suffix designation before ordering. Ensure compatibility with WLCSP-16 footprint during PCB layout. Check RoHS compliance documentation for regulatory adherence. Validate thermal performance under maximum load conditions.

Selection Notes

Choose this part when space-constrained designs require integrated buck and LDO solutions. Select based on required output currents and fixed voltage levels. Consider the 3 MHz switching frequency for smaller inductor selection. Verify input voltage range covers the system's battery or supply profile. Evaluate thermal dissipation capabilities within the WLCSP-16 package constraints.

Part Context

This component belongs to the ADP5033 series of power management ICs from Analog Devices. It is designed for applications demanding high integration and efficiency in small form factors. The series typically targets portable electronics and embedded systems where board space is limited. Other variants in the family offer different fixed output configurations while maintaining similar architectural features.

Replacement Considerations

Check for direct substitutes within the ADP5033 family offering identical pinouts and electrical characteristics. Verify that alternative parts match the WLCSP-16 package dimensions and thermal properties. Ensure replacement components support the same input voltage range and output current capabilities.