BD8649EFV-E2

$4.73

Description：IC REG BUCK ADJ 3A 20HTSSOP-B
Series：-
Mfr：Rohm Semiconductor
Package：Tape & Reel (TR),Tape & Reel (TR),Cut Tape (CT)

SKU:0ea27750c30f Category: Voltage Regulators - DC DC Switching Regulators Brand: Rohm Semiconductor

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK ADJ 3A 20HTSSOP-B
Series：-
Mfr：Rohm Semiconductor
Package：Tape & Reel (TR),Tape & Reel (TR),Cut Tape (CT)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：4.5V
Voltage - Input (Max)：18V
Voltage - Output (Min/Fixed)：0.8V
Voltage - Output (Max)：18V
Current - Output：3A
Frequency - Switching：100kHz ~ 600kHz
Synchronous Rectifier：Yes
Operating Temperature：-20°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：20-VSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package：20-HTSSOP-B
Grade：-
Qualification：-

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BD8649EFV-E2

Overview

The BD8649EFV-E2 is a single-step-down switching regulator manufactured by ROHM Semiconductor, housed in a 20-pin HTSSOP-B package. It operates within an input voltage range of 4.5 V to 18 V and delivers a maximum output current of 3 A. The device features an adjustable output voltage and supports a switching frequency between 100 kHz and 600 kHz. It functions reliably across an operating temperature range of -20°C to +85°C with a quiescent current of 1.5 mA.

Feature Summary

Integrates a synchronous buck converter topology for efficient power conversion
Includes a shutdown pin for active low-power management
Supports external adjustment of the switching frequency

Applications

Portable electronic devices requiring efficient step-down regulation
Embedded systems utilizing single-rail power architectures
Industrial control modules operating within standard voltage ranges

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS compliance documentation matches specific manufacturing lots. Validate package integrity upon receipt as moisture sensitivity requires proper handling. Cross-reference datasheet revisions to ensure functional compatibility with existing designs.

Selection Notes

Evaluate thermal performance requirements against the HTSSOP-B-20 package limitations. Ensure input voltage stability remains within the 4.5 V to 18 V operational window. Consider external component selection for target switching frequencies between 100 kHz and 600 kHz. Verify load current demands do not exceed the 3 A continuous output capability.

Part Context

This component belongs to the BD8649EFV series of single-output DC-DC converters. It serves as a compact power management solution for applications needing regulated lower voltages from higher supply rails. The integrated MOSFET design reduces external component count compared to controller-only alternatives.