LT8705IFE#TRPBF

$15.04

Description：IC REG CTRLR BUCK-BOOST 38TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:e85568c0a531 Category: DC DC Switching Controllers Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG CTRLR BUCK-BOOST 38TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：Transistor Driver
Function：Step-Up/Step-Down
Output Configuration：Positive
Topology：Buck-Boost
Number of Outputs：2
Output Phases：2
Voltage - Supply (Vcc/Vdd)：2.8V ~ 80V
Frequency - Switching：100kHz ~ 400kHz
Duty Cycle (Max)：-
Synchronous Rectifier：Yes
Clock Sync：Yes
Serial Interfaces：-
Control Features：Enable, Frequency Control, Soft Start
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：38-TFSOP (0.173", 4.40mm Width) 31 Leads, Exposed Pad
Supplier Device Package：38-TSSOP-EP

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LT8705IFE#TRPBF

Overview

The LT8705IFE#TRPBF is a synchronous four-switch buck-boost DC/DC controller manufactured by Analog Devices Inc. It operates with input voltages ranging from 2.8V to 80V, supporting output voltages from 1.3V to 80V. The device features a programmable switching frequency between 100kHz and 400kHz and integrates feedback loops for input current, input voltage, output current, and output voltage. It utilizes a 38-TSSOP-EP package with an exposed pad for thermal management.

Feature Summary

Synchronous four-switch topology enabling operation above, below, or equal to the output voltage
Integrated closed-loop control for input current, input voltage, output current, and output voltage
Supports clock synchronization for multi-phase or parallel system expansion

Applications

Supercapacitor backup power systems
Telecom voltage stabilizers
Industrial battery-powered equipment

Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when ordering. Confirm that the component status is active for production use. Ensure compatibility with the 38-TSSOP-EP footprint on the target PCB layout. Check for any recent process change notifications regarding bond wire materials or epoxy changes before finalizing procurement plans.

Selection Notes

Select this controller for applications requiring wide input voltage ranges relative to the output. It is suitable for designs needing precise regulation across buck, boost, and pass-through modes. Consider the 38-pin package for thermal dissipation requirements. Evaluate the need for external MOSFETs as this is a controller IC rather than a complete power stage solution.

Part Context

This component belongs to the LT8705 series of high-performance buck-boost switching regulator controllers. It is designed to handle complex power conversion tasks where input voltage fluctuates significantly around the output level. The series supports various packaging options including TSSOP-EP for improved heat transfer in dense layouts.