LT3991IMSE#TRPBF

$8.95

Description：IC REG BUCK ADJ 1.2A 10MSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:61e5b41d7079 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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 1.2A 10MSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：4.3V
Voltage - Input (Max)：55V
Voltage - Output (Min/Fixed)：1.19V
Voltage - Output (Max)：30V
Current - Output：1.2A
Frequency - Switching：200kHz ~ 2MHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
Supplier Device Package：10-MSOP-EP
Grade：-
Qualification：-

Download product information

LT3991IMSE#TRPBF

Overview

The LT3991IMSE#TRPBF is a synchronous step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 4V to 55V and delivers a maximum output current of 1.2A. The device features a fixed 5V output and supports a programmable switching frequency from 200kHz to 2MHz. Quiescent current is specified at 2.8uA, with operating supply current at 1.7uA. It utilizes an MSOP-10 package and functions within a temperature range of -40°C to +125°C.

Feature Summary

Synchronous buck topology for high efficiency
Wide input voltage capability up to 55V
Programmable switching frequency selection
Low quiescent current operation

Applications

Industrial control systems
Telecommunications infrastructure
Embedded computing platforms

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing components. Confirm that the IMSE variant corresponds to the industrial temperature grade requirements for the intended application environment. Cross-reference the manufacturer part number with authorized distributors to ensure authenticity and traceability of the batch.

Selection Notes

Select this component for designs requiring a fixed 5V output from high-voltage inputs up to 55V. The 1.2A current rating suits moderate load applications. Consider the MSOP-10 package constraints for thermal management. Ensure the required switching frequency falls within the 200kHz to 2MHz adjustable range to optimize inductor size and efficiency.

Part Context

This part belongs to the LT3991 family of high voltage synchronous buck regulators. It shares architectural similarities with other members like the LT3991IDD but differs in package type and output configuration. The series is designed for applications needing robust performance across wide input voltage ranges.