LT3481IDD#TRPBF

$4.96

Description：IC REG BUCK ADJ 2A 10DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)

SKU:7c18b3030992 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK ADJ 2A 10DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：3.6V
Voltage - Input (Max)：34V
Voltage - Output (Min/Fixed)：1.265V
Voltage - Output (Max)：20V
Current - Output：2A
Frequency - Switching：300kHz ~ 2.8MHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：10-WFDFN Exposed Pad
Supplier Device Package：10-DFN (3x3)

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LT3481IDD#TRPBF

Overview

The LT3481IDD#TRPBF is a monolithic buck switching regulator from Analog Devices Inc., housed in a 10-WFDFN exposed pad package. It accepts input voltages up to 36V and provides an adjustable output voltage ranging from 1.265V to 20V with a maximum output current of 2A. The device features an adjustable switching frequency between 300kHz and 2.8MHz, allowing for optimization of external component size and efficiency. Key electrical specifications include a quiescent current of 70µA and integrated soft start functionality.

Feature Summary

Adjustable switching frequency range from 300kHz to 2.8MHz
Integrated 2A power switch for high current applications
Wide input voltage range supporting up to 36V
Built-in soft start mechanism limits inrush current

Applications

Industrial control systems requiring isolated or non-isolated DC-DC conversion
Battery-powered equipment needing efficient step-down regulation
Embedded systems with wide input voltage variations
Automotive electronics operating within specified voltage limits

Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when sourcing components. Confirm that the 10-WFDFN package requires appropriate thermal management solutions due to the exposed pad design. Ensure compatibility with the target PCB layout for optimal heat dissipation and signal integrity during procurement planning.

Selection Notes

Select this regulator when a wide input voltage range up to 36V is required alongside high output current capabilities. The adjustable frequency feature allows designers to minimize passive component sizes while maintaining desired ripple levels. Consider the 70µA quiescent current for applications where standby power consumption is a critical constraint.

Part Context

This component belongs to the LT3481 series of buck switching regulators manufactured by Analog Devices Inc. It is designed for general-purpose power management tasks where efficiency and compactness are prioritized. The part is distinct from linear regulators due to its switching topology, offering higher efficiency at moderate to high load currents.