EL7551CU

$2.93

Description：IC REG BUCK ADJ 1A 16QSOP
Series：-
Mfr：Elantec
Package：Bulk

SKU:b6e7aeb9b709 Category: Voltage Regulators - DC DC Switching Regulators Brand: Elantec

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

Product Detailed Parameters

Description：IC REG BUCK ADJ 1A 16QSOP
Series：-
Mfr：Elantec
Package：Bulk
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：4.5V
Voltage - Input (Max)：5.5V
Voltage - Output (Min/Fixed)：1V
Voltage - Output (Max)：3.8V
Current - Output：1A
Frequency - Switching：200kHz ~ 1MHz
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：16-SSOP (0.154", 3.90mm Width)
Supplier Device Package：16-QSOP
Grade：-
Qualification：-

Download product information

EL7551CU

Overview

The EL7551CU is a switching voltage regulator manufactured by Renesas Electronics, classified under PMIC - Power Management ICs. It utilizes a Buck topology and operates as a current mode PWM controller. The device provides one output with a voltage range of 1 V to 3.8 V and an output current capability of 1 A. It features a fixed switching frequency of 1.2 MHz and maintains a load regulation of 0.5%. The component is housed in a QSOP-16 package and supports SMD/SMT installation. It functions within a temperature range of -40°C to +85°C.

Feature Summary

Integrates a buck converter topology for efficient DC-DC conversion
Operates using current mode PWM control architecture
Provides regulated single-channel output power delivery

Applications

Embedded systems requiring compact power management
Portable electronic devices utilizing battery power sources
Industrial equipment needing stable low-voltage regulation

Procurement Notes

Verify the specific suffix (e.g., T7, CUZ) against official documentation to confirm packaging format and RoHS compliance status. Confirm availability through authorized channels as distribution status may vary. Ensure the QSOP-16 package matches the target PCB footprint requirements before finalizing procurement decisions.

Selection Notes

Select this component when a 1A buck converter solution is required with a 1.2 MHz switching frequency. Ensure the input voltage range accommodates the specified 1V to 3.8V output window. Verify that the operating temperature range of -40°C to +85°C aligns with the environmental conditions of the intended application design.

Part Context

This part belongs to the EL7551 series of integrated DC-DC converters. It shares core electrical specifications with variants such as the EL7551CU-T7 and EL7551CUZ-T13. Differences between these variants typically involve reel packaging quantities or specific manufacturing site identifiers rather than functional changes.