LT1938IDD#PBF

$9.00

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

SKU:6558e39870d5 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：-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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LT1938IDD#PBF

Overview

The LT1938IDD#PBF is a synchronous step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3.6V to 25V and delivers up to 2.2A of output current. The device features a wide adjustable output voltage range from 1.265V to 20V. It supports programmable switching frequencies between 300kHz and 3MHz. The component is housed in a compact 10-WFDFN package with exposed pad, suitable for surface mount applications.

Feature Summary

Integrated synchronous rectification architecture for high efficiency
Programmable switching frequency allows optimization for size or performance
Wide input voltage range accommodates various power sources
Adjustable output voltage provides design flexibility

Applications

Point-of-load regulation for embedded systems
Battery-powered equipment requiring efficient DC-DC conversion
Industrial control systems with variable input voltages
Communication infrastructure power distribution

Procurement Notes

Verify the specific suffix IDD against official Analog Devices documentation to confirm pinout and thermal characteristics. Ensure compatibility with the intended PCB footprint for the 10-WFDFN package. Confirm RoHS compliance status through the manufacturer's latest material declaration. Cross-reference the part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a compact solution is required for high-current step-down applications. The wide frequency range allows designers to balance electromagnetic interference with external component size. Verify that the thermal performance of the 10-WFDFN package meets the system's heat dissipation requirements under maximum load conditions.

Part Context

This part belongs to the LT1938 family of synchronous buck regulators. It shares functional similarities with other ADI PMICs but offers specific input and output ranges tailored for general-purpose power management. The DFN package distinguishes it from larger leaded alternatives in the same series.