EL7554IRE

Description：IC REG BUCK ADJ 4A 28HTSSOP
Series：-
Mfr：Renesas Electronics Corporation
Package：Tube

SKU:4da13f8fc6ce Category: Voltage Regulators - DC DC Switching Regulators Brand: Renesas Electronics Corporation

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK ADJ 4A 28HTSSOP
Series：-
Mfr：Renesas Electronics Corporation
Package：Tube
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：3V
Voltage - Input (Max)：6V
Voltage - Output (Min/Fixed)：0.8V
Voltage - Output (Max)：6V
Current - Output：4A
Frequency - Switching：200kHz ~ 1MHz
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：28-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package：28-HTSSOP
Grade：-
Qualification：-

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EL7554IRE

Overview

The EL7554IRE is a synchronous step-down switching regulator IC manufactured by Renesas Electronics Corporation. It operates with an input voltage range of 3V to 6V and provides a single adjustable output voltage from 0.8V to 6V. The device supports a maximum output current of 4A and features a programmable switching frequency between 200kHz and 1MHz. It utilizes a 28-HTSSOP package with an exposed pad for thermal management and functions within a temperature range of -40°C to +85°C.

Feature Summary

Synchronous rectification architecture for enhanced efficiency
Adjustable switching frequency allows optimization for size or performance
Integrated protection mechanisms including thermal shutdown

Applications

Portable consumer electronics power supplies
Industrial control system regulation
Battery-powered equipment voltage conversion

Procurement Notes

Verify component authenticity through authorized channels as the EL7554 series may have end-of-life status. Confirm package integrity and moisture sensitivity level handling requirements before assembly. Cross-reference datasheet revisions to ensure compatibility with existing design specifications and regulatory compliance standards.

Selection Notes

Select this component when a compact, high-efficiency buck converter is required for low-voltage applications. Ensure the external inductor and capacitor values align with the desired switching frequency and output ripple specifications. Consider thermal dissipation requirements due to the 4A output capability in the HTSSOP package.

Part Context

This part belongs to the EL7554 family of synchronous DC-DC converters designed for space-constrained applications. It integrates high-side and low-side MOSFETs to minimize external component count. The family targets portable devices requiring efficient power management from single-cell lithium-ion sources.