LT3689EUD-5#TRPBF

$3.71

Description：IC REG BUCK 5V 700MA 16QFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)

SKU:40c34fef776c Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK 5V 700MA 16QFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：3.6V
Voltage - Input (Max)：36V
Voltage - Output (Min/Fixed)：5V
Voltage - Output (Max)：-
Current - Output：700mA
Frequency - Switching：500kHz ~ 2MHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：16-WFQFN Exposed Pad
Supplier Device Package：16-QFN (3x3)

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LT3689EUD-5#TRPBF

Overview

The LT3689EUD-5#TRPBF is a fixed-output buck switching regulator IC manufactured by Analog Devices Inc. It provides a fixed 5V output with a maximum current of 700mA. The device operates within an input voltage range and supports switching frequencies between 500kHz and 2MHz. It integrates a power-on reset generator and a watchdog timer for system protection. The component is housed in a 16-pin WFQFN exposed pad package designed for surface mount installation.

Feature Summary

Integrates a power-on reset generator and watchdog timer for enhanced system reliability
Fixed 5V output topology simplifies design for specific voltage requirements
Supports high-frequency switching operation to minimize external component size

Applications

Portable battery-powered equipment requiring regulated 5V supply
Embedded systems needing integrated reset and watchdog functionality
Space-constrained designs utilizing compact QFN packaging

Procurement Notes

Verify the exact suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the -5 suffix corresponds to the fixed 5V output variant required for your circuit design. Ensure compatibility with the 16-WFQFN footprint during PCB layout. Check current availability status as supply may be limited or subject to factory order constraints.

Selection Notes

Select this part when a fixed 5V output is strictly required rather than adjustable regulation. Consider the integrated reset and watchdog features if board space for discrete logic is limited. Evaluate the 700mA current limit against peak load demands. Verify that the operating frequency range aligns with electromagnetic interference requirements.

Part Context

This component belongs to the LT3689 family of step-down regulators from Analog Devices. It shares architectural similarities with other members but differs in output configuration and pinout specifics. The series is characterized by high efficiency and compact integration suitable for modern portable electronics.