LT1938EDD#PBF

$6.31

Description：IC REG BUCK ADJ 2.2A 10DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:be46e5a05266 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 2.2A 10DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：3.6V
Voltage - Input (Max)：25V
Voltage - Output (Min/Fixed)：1.265V
Voltage - Output (Max)：20V
Current - Output：2.2A
Frequency - Switching：300kHz ~ 3MHz
Synchronous Rectifier：No
Operating Temperature：0°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：10-WFDFN Exposed Pad
Supplier Device Package：10-DFN (3x3)

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LT1938EDD#PBF

Overview

The LT1938EDD#PBF is a monolithic buck switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3.6V to 25V and provides a single adjustable positive output from 1.265V to 20V. The device delivers up to 2.2A of output current and features an adjustable switching frequency between 300kHz and 3MHz. Packaged in a 10-WFDFN exposed pad (3x3mm) surface-mount format, it supports junction temperatures from 0°C to 125°C.

Feature Summary

Adjustable switching frequency allows optimization for efficiency or component size
Wide input voltage range accommodates various power supply sources
Compact footprint suitable for space-constrained designs

Applications

Industrial control systems requiring regulated power
Portable equipment powered by battery or adapter sources
Embedded systems needing efficient step-down conversion

Procurement Notes

Verify the complete part number including suffixes against official Analog Devices documentation to ensure correct package and temperature grade. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Cross-reference datasheet revisions to validate electrical specifications before finalizing procurement orders.

Selection Notes

Select this component when a wide input voltage range and high current capability are required in a small outline. Ensure the external inductor and capacitor values support the chosen switching frequency within thermal limits. Verify that the desired output voltage falls within the specified minimum and maximum adjustment range defined in the electrical characteristics table.

Part Context

This part belongs to the LT1938 family of high-efficiency synchronous buck regulators. It is designed for applications demanding high performance in compact spaces. The EDD suffix indicates a specific 10-lead DFN package variant optimized for thermal dissipation and board space efficiency compared to larger packages.