LT3509IMSE#TRPBF

$9.93

Description：IC REG BUCK ADJ 700MA DL 16MSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:d8cdb6dd3ceb 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 700MA DL 16MSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：2
Voltage - Input (Min)：3.6V
Voltage - Input (Max)：36V
Voltage - Output (Min/Fixed)：0.8V
Voltage - Output (Max)：34.2V
Current - Output：700mA
Frequency - Switching：260kHz ~ 2.15MHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：16-TFSOP (0.118", 3.00mm Width) Exposed Pad
Supplier Device Package：16-MSOP-EP

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LT3509IMSE#TRPBF

Overview

The LT3509IMSE#TRPBF is a high-efficiency, synchronous step-down DC/DC converter controller manufactured by Analog Devices Inc. It operates with an input voltage range of 2.7V to 36V and delivers up to 1.4A of output current. The device features a fixed switching frequency of 1MHz and supports adjustable frequencies from 500kHz to 1.5MHz. It utilizes a 16-lead MSOP package with an exposed pad for thermal management. The controller includes integrated power MOSFETs, offering a compact solution for space-constrained applications requiring efficient voltage regulation.

Feature Summary

Integrated synchronous rectification with internal power switches
Wide input voltage range supporting various supply sources
Adjustable switching frequency for optimization of external component size
Built-in soft-start and cycle-by-cycle current limiting

Applications

Portable electronics and battery-powered devices
Industrial control systems
Telecommunications equipment
Embedded computing platforms

Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when sourcing. Confirm the IMSE variant corresponds to the industrial temperature grade (-40°C to +85°C). Ensure compatibility with the required 16-lead MSOP footprint during PCB layout. Cross-reference the manufacturer's latest datasheet for any design changes or obsolescence notices prior to final procurement.

Selection Notes

Select this component when a compact, high-efficiency buck converter is needed without external MOSFETs. The 1MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Consider the thermal performance of the MSOP package under maximum load conditions. Verify that the input voltage range aligns with the system's power source requirements.

Part Context

The LT3509 belongs to Analog Devices' family of synchronous step-down converters designed for efficiency and simplicity. It integrates the control logic and power switches into a single package, reducing the bill of materials and board space. This series is commonly used in applications where power density and conversion efficiency are critical constraints.