LTC3780IUH

Description：IC POWER MANAGEMENT
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:fa503e0d2871 Category: DC DC Switching Controllers Brand: Analog Devices Inc.

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Product introduction

LTC3780IUH is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists Analog Devices Inc.. Its product description is IC POWER MANAGEMENT. Review the specifications below when checking this part for your BOM.

DC DC Switching Controllers specifications for LTC3780IUH

Description：IC POWER MANAGEMENT
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Output Type：Transistor Driver
Function：Step-Up/Step-Down
Output Configuration：Positive
Topology：Buck-Boost
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：4V ~ 30V
Frequency - Switching：200kHz ~ 400kHz
Duty Cycle (Max)：99%
Synchronous Rectifier：Yes
Clock Sync：No
Serial Interfaces：-
Control Features：Current Limit, Enable, Power Good, Soft Start
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：32-WFQFN Exposed Pad
Supplier Device Package：32-QFN (5x5)

DC DC Switching Controllers datasheet and documents for LTC3780IUH

LTC3780IUH

DC DC Switching Controllers Overview

The LTC3780IUH is a high-efficiency, synchronous four-switch buck-boost switching regulator controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4 V to 36 V and supports output voltages from 800 mV to 30 V. The device delivers up to 10 A of output current through a single output channel. Key electrical parameters include a switch frequency of 400 kHz, a maximum duty cycle of 99%, and a static current of 1.5 mA. It functions within a junction temperature range of -40°C to +125°C and utilizes a 32-pin QFN package.

DC DC Switching Controllers Feature Summary

Synchronous four-switch topology enables efficient step-down and step-up conversion across wide input and output voltage ranges.
Integrated control features include current limit, enable, power good indication, and soft-start functionality.
Designed for high efficiency applications with low quiescent current consumption during operation.

DC DC Switching Controllers Applications

Battery-powered systems requiring automatic step-up/down regulation
Industrial power supplies with varying input sources
Automotive electronics operating under fluctuating voltage conditions

DC DC Switching Controllers Procurement Notes

Verify the specific suffix (e.g., #PBF vs #TRPBF) to confirm packaging type, as tube and reel variants exist. Confirm RoHS compliance status via official documentation before integration. Ensure the selected variant matches the required thermal and mechanical constraints for the target PCB layout.

DC DC Switching Controllers Selection Notes

Select this component when a single controller must handle both buck and boost operations without external MOSFET drivers. Consider the 32-QFN package for space-constrained designs. Evaluate thermal performance requirements given the 10 A capability and ensure adequate heatsinking or copper area for the exposed pad.

DC DC Switching Controllers Part Context

The LTC3780 belongs to Analog Devices' family of high-performance DC/DC controllers. It is distinct from the LTC3784, which is a multiphase boost controller, and the LTC3789, another buck-boost option. The IUH suffix indicates an industrial temperature grade and QFN package configuration.

DC DC Switching Controllers Replacement Considerations

LTC3789EUFD#PBF offers similar buck-boost functionality in a 28-QFN package. Designers should verify pin compatibility and control loop stability when substituting between these models.