BD3508EKN-E2

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

The BD3508EKN-E2 is a single-output adjustable low-dropout linear regulator manufactured by ROHM Semiconductor. It features an internal N-MOSFET power transistor, enabling operation with a minimum input voltage of 750 mV and a maximum input voltage of 5.5 V. The device delivers a continuous output current of 3 A with an adjustable output voltage range from 650 mV to 2.7 V. Key electrical specifications include a typical dropout voltage of 65 mV at 1 A load, a line regulation of 0.1 %/V, and a load regulation of 500 uV. The quiescent current is 700 uA, and the maximum power dissipation is rated at 2 W. It operates within a temperature range of -10°C to +100°C and is housed in an HQFN-20 package.

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

• Ultra-low dropout performance enabled by integrated N-MOSFET technology for high efficiency under minimal voltage differentials.
• Adjustable output voltage capability allowing flexible configuration between 650 mV and 2.7 V via external resistors.
• High current delivery capacity of 3 A with robust line and load regulation characteristics.
• Integrated protection mechanisms including thermal shutdown and under-voltage lockout for reliable operation.

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

• Portable electronic devices requiring efficient power management from single-cell battery sources
• Embedded systems utilizing low-voltage logic circuits needing stable regulated power rails
• Battery-powered equipment where minimizing conversion loss and maximizing runtime are critical

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 check for specific environmental certifications required by your region. Ensure that the HQFN-20 package handling procedures align with moisture sensitivity level requirements during storage and assembly processes to prevent damage.

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

Select this regulator when designing circuits that demand high current output from very low input voltages. The adjustable output feature provides design flexibility for various voltage rails. Consider the thermal dissipation capabilities given the 2 W rating and ensure adequate PCB copper area for heat spreading. Evaluate the operating temperature range against your application's environmental conditions to guarantee long-term reliability.

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

This component belongs to the BD3508 series of ultra-low dropout linear regulators from ROHM Semiconductor. These devices are designed to replace switching regulators in applications where size, cost, and noise are concerns, while still maintaining high efficiency through minimal voltage drop across the pass element.

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

BD3508MUV-E2 offers identical electrical specifications but utilizes a VQFN-20 package instead of HQFN-20. Verify pin compatibility and thermal pad connections before substitution. Other BD3508 variants may exist with different packages or slight parameter variations; always consult the specific datasheet for detailed comparison.