ADP5070AREZ

Overview

The ADP5070AREZ-R7 is a dual-channel DC-DC switching regulator manufactured by Analog Devices Inc., designed for generating independent positive and negative power rails. It operates within an input voltage range of 2.85 V to 15 V, delivering up to 1 A on the positive output and 600 mA on the negative output. The device supports adjustable outputs ranging from 0.8 V to ±39 V with a switch frequency of 2.4 MHz. Packaged in a 20-TSSOP (EP) surface-mount format, it functions as a boost or SEPIC converter suitable for bipolar ADC, DAC, and amplifier applications across a temperature range of -40°C to +125°C.

Feature Summary

• Generates independently regulated positive and negative voltage rails from a single input source
• Integrates high-performance synchronous rectification for efficient power conversion
• Supports flexible topology configurations including boost and SEPIC modes
• Features programmable soft-start, timing control, and slew rate management

Applications

• Powering bipolar analog-to-digital converters (ADCs)
• Supplying digital-to-analog converters (DACs)
• Biasing operational amplifiers and signal conditioning circuits
• Providing split-rail power for instrumentation systems

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm package integrity and pin alignment against the 20-TSSOP specification before integration. Ensure storage conditions comply with moisture sensitivity levels to prevent soldering defects during reflow processes.

Selection Notes

Select this component when designing systems requiring isolated positive and negative supply rails from a single unregulated source. Evaluate thermal performance under maximum load conditions due to the dual-output architecture. Consider external LDO options if ultra-low noise requirements exceed the switching regulator's inherent ripple specifications.

Part Context

This part belongs to the ADP5070 series of uPMU regulators, specifically engineered for high-density power management in mixed-signal environments. It complements other Analog Devices PMIC solutions by offering a compact footprint for dual-rail generation without requiring transformer-based isolation.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.