LT1946AEMS8E#PBF

$5.70

Description：IC REG BST SEPIC ADJ 1.5A 8MSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:2a78d34ac666 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BST SEPIC ADJ 1.5A 8MSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Function：Step-Up, Step-Up/Step-Down
Output Configuration：Positive
Topology：Boost, SEPIC
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：2.45V
Voltage - Input (Max)：16V
Voltage - Output (Min/Fixed)：2.45V
Voltage - Output (Max)：35V
Current - Output：1.5A (Switch)
Frequency - Switching：2.7MHz
Synchronous Rectifier：No
Operating Temperature：0°C ~ 70°C (TA)
Mounting Type：Surface Mount
Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Supplier Device Package：8-MSOP-EP

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LT1946AEMS8E#PBF

Overview

The LT1946AEMS8E#PBF is a synchronous boost and SEPIC DC/DC converter manufactured by Analog Devices Inc. It integrates a 1.5A switch and operates with an input voltage range of 2.45V to 16V, delivering an adjustable output voltage from 2.45V up to 35V. The device utilizes a fixed 2.7MHz switching frequency and features a single positive output configuration. Packaged in an 8-lead MSOP with an exposed pad for thermal management, it supports surface mount installation and functions within an ambient temperature range of 0°C to 70°C.

Feature Summary

Integrates a 1.5A synchronous switch for efficient power conversion
Supports both boost and SEPIC topologies for flexible input-output relationships
Includes integrated soft-start functionality to limit inrush current

Applications

Battery-powered portable equipment requiring step-up or inverted voltage regulation
Industrial control systems utilizing distributed power architectures
Automotive electronics operating within specified voltage ranges

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS adherence when sourcing. Confirm the package variant matches the required 8-MSOP footprint with exposed pad for proper thermal dissipation. Ensure the ordering part number corresponds to the tube packaging format associated with this specific suffix designation.

Selection Notes

Select this component when a fixed high-frequency operation at 2.7MHz is preferred to minimize external passive component size. It is suitable for designs requiring a non-synchronous alternative to standard synchronous converters if cost or specific topology constraints apply, though the datasheet identifies it as a synchronous regulator. Verify that the 1.5A switch current rating meets the peak inductor current requirements of the target application.

Part Context

This part belongs to the LT1946 family of high-efficiency switching regulators designed for space-constrained applications. The EMS8E designation specifies the 8-lead MSOP package with an exposed thermal pad, facilitating heat transfer to the PCB ground plane. The series is engineered to provide stable performance across varying load conditions while maintaining compact board dimensions.