LT3959IUHE

Description：IC REG BOOST CUK ADJ 6A 36QFN
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:ae1b7d8f2bc5 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

Product Detailed Parameters

Description：IC REG BOOST CUK ADJ 6A 36QFN
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Function：Step-Up, Step-Up/Step-Down
Output Configuration：Positive or Negative
Topology：Boost, Cuk, SEPIC
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：1.6V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：0.8V
Voltage - Output (Max)：40V (Switch)
Current - Output：6A (Switch)
Frequency - Switching：100kHz ~ 1MHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：36-WFQFN, 28 Leads, Exposed Pad
Supplier Device Package：36-QFN (5x6)
Grade：-
Qualification：-

Download product information

LT3959IUHE

Overview

The LT3959IUHE is a wide input voltage range switching regulator IC manufactured by Analog Devices Inc. It supports multiple converter topologies including boost, Cuk, SEPIC, and inverting configurations. The device features a 36-pin QFN package and operates within a temperature range of -40°C to +125°C. Key electrical specifications include an adjustable output voltage starting at 0.8V, a maximum switch current of 6A, and a programmable switching frequency ranging from 100kHz to 1MHz. The input voltage range extends up to 40V.

Feature Summary

Supports versatile power conversion topologies including boost, Cuk, SEPIC, and inverting modes for flexible system design.
Features high-efficiency synchronous rectification with integrated power switches capable of delivering significant output current.
Includes comprehensive protection mechanisms such as thermal shutdown and cycle-by-cycle current limiting.

Applications

Industrial automation systems requiring isolated or non-isolated DC-DC conversion
Automotive electronics operating under varying input voltage conditions
Telecommunications infrastructure power supplies

Procurement Notes

Verify the specific suffix (e.g., #PBF) against your Bill of Materials to ensure correct packaging and lead-free compliance. Confirm availability status directly with authorized distributors as supply levels fluctuate. Ensure the selected variant matches the required thermal performance and pinout configuration for your PCB layout.

Selection Notes

Select this component when designing circuits that require flexibility between boost, SEPIC, or inverting topologies from a single wide-input source. Consider the 6A switch current capability for moderate-to-high power applications. Evaluate the thermal requirements of the 36-QFN package based on your ambient temperature and airflow conditions.

Part Context

This part belongs to the LT3959 family of wide input voltage regulators designed for robust industrial and automotive environments. It integrates high-side and low-side drivers with control logic to manage various energy transfer modes efficiently.