LT3845AIFE#TRPBF

$10.59

Description：IC REG CTRLR BUCK 16TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:b1a1c9c50051 Category: DC DC Switching Controllers Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG CTRLR BUCK 16TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：Transistor Driver
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：4V ~ 60V
Frequency - Switching：300kHz
Duty Cycle (Max)：-
Synchronous Rectifier：Yes
Clock Sync：Yes
Serial Interfaces：-
Control Features：Enable, Frequency Control, Soft Start
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：16-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package：16-TSSOP-EP
Grade：-
Qualification：-

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LT3845AIFE#TRPBF

Overview

The LT3845AIFE#TRPBF is a high voltage, synchronous, current mode step-down controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4V to 60V and supports adjustable operating frequencies from 100kHz to 500kHz. The device features Burst Mode operation for high efficiency at light loads, reducing quiescent current to 120µA. It utilizes a 16-lead TSSOP package with exposed pad (EP) for surface mount installation. The controller includes soft-start functionality and reverse inductor current inhibit to support discontinuous conduction mode.

Feature Summary

High voltage synchronous buck controller with wide 4V to 60V input range
Burst Mode operation maintains high efficiency at light loads by minimizing quiescent current
Adjustable switching frequency allows optimization for specific design requirements
Onboard regulator simplifies biasing by providing IC power directly from the input voltage

Applications

Industrial control systems
Telecom power supplies
Distributed power architectures
Medium to high power point-of-load converters

Procurement Notes

Verify the exact suffix TRPBF confirms tape and reel packaging when sourcing. Confirm RoHS compliance status through official documentation. Ensure the TSSOP-16 EP package matches your PCB footprint requirements. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Check for any specific handling or moisture sensitivity level precautions during assembly.

Selection Notes

Select this component for applications requiring high input voltages up to 60V and efficient light-load performance. The adjustable frequency feature allows designers to optimize between size and EMI. Consider the 120µA quiescent current for battery-powered or standby-sensitive designs. Ensure external MOSFETs are rated for the required voltage and current levels. Evaluate thermal dissipation needs due to the TSSOP package constraints.

Part Context

The LT3845AIFE#TRPBF belongs to the LT3845A series of high voltage synchronous buck controllers. It is designed for medium to high power applications where efficiency across a wide load range is critical. The device integrates current mode control and soft-start features. It is often paired with demonstration boards like DC1619A for evaluation purposes.