BD3509MUV-E2

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

The BD3509MUV-E2 is a single-output, positive polarity adjustable LDO voltage regulator from ROHM Semiconductor. It operates within an input voltage range of 2.7 V to 5.5 V and delivers up to 4 A output current. The device provides an adjustable output voltage between 650 mV and 2.7 V, utilizing a 650 mV reference voltage. Key electrical parameters include a line regulation of 0.1 %/V, load regulation of 500 uV, and quiescent current of 1.2 mA. It functions in temperatures from -10 °C to +100 °C and is housed in a VQFN-20 package.

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

• Ultra-low dropout linear regulation for efficient power conversion
• Adjustable output voltage capability across a wide low-voltage range
• High continuous output current capacity for demanding loads

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

• Portable electronic devices requiring stable low-voltage power rails
• Battery-powered systems needing efficient linear regulation
• Embedded circuits with variable voltage requirements

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

Verify the NRND (Not Recommended for New Designs) status before procurement. Confirm RoHS compliance details and ensure the VQFN-20 package matches your PCB footprint. Check for valid datasheets and ECAD models to support design integration and manufacturing readiness.

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

Select this component when a high-current adjustable LDO is required within a 2.7 V to 5.5 V input window. Consider the thermal dissipation limits of 3.56 W and the specific operating temperature range. Ensure the design accommodates the 10 uA input bias current and the specified line and load regulation performance metrics.

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

This part belongs to the BD3509MUV series of ultra-low dropout regulators manufactured by ROHM Semiconductor. It is categorized under PMIC - Power Management ICs and specifically as a Linear Regulator. The device is designed for surface-mount installation using the VQFN-20 package format.

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

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative components through independent technical comparison if necessary.