BD3989FV-E2

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The BD3989FV-E2 is a dual-output linear voltage regulator from ROHM Semiconductor, housed in an 8-pin SSOP-B package. It provides adjustable positive and negative outputs, specifically -8.5 V to -6.5 V for the negative rail and 14 V to 16 V for the positive rail. The device supports output currents of 50 mA and 25 mA respectively. Key electrical characteristics include a maximum dropout voltage of 450 mV at 50 mA and a power dissipation rating of 380 mW. It operates within a temperature range of -40°C to +85°C.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Dual-output architecture providing independent positive and negative adjustable voltage rails
• Low dropout performance with specified maximum voltage drop under load conditions
• Compact surface-mount packaging suitable for space-constrained designs

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Portable electronic devices requiring dual polarity power supplies
• Battery-operated equipment needing efficient linear regulation
• Embedded systems utilizing negative voltage references

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and specific revision markings on the package. Check for obsolescence notices as this part may be discontinued. Ensure storage conditions meet semiconductor handling standards to prevent damage prior to assembly.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when dual adjustable LDO outputs are required in a small form factor. Consider the 50 mA and 25 mA current limits for load requirements. Evaluate thermal management needs given the 380 mW power dissipation limit. Compare against newer ROHM series if long-term supply availability is critical for production.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This device belongs to the BD3988/BD3989 family of low-dropout regulators. It shares similar packaging and functional principles with the BD3988FV-E2 but offers distinct output voltage ranges. Both parts serve as PMIC solutions for portable applications requiring stable dual-rail power delivery from single or multiple input sources.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult ROHM Semiconductor directly for current equivalent recommendations or next-generation replacements.