LT8711 - Micropower Synchronous Multitopology Controller with 42V Input Capability
Datasheet Documentation
Datasheet
Press Release
Overview

Features

Typical Application

LT8711 Typical Application
LT8711 Typical Application

Description

The LT®8711 is a multi-topology current mode PWM controller that can easily be configured as a synchronous buck, boost, SEPIC, ZETA or as a nonsynchronous buck-boost converter. Its dual gate drive voltage inputs optimize gate driver efficiency.

The 15µA no-load quiescent current with the output voltage in regulation extends operating run-time in battery powered systems. Low ripple Burst Mode operation enables high efficiency at very light loads while maintaining low output voltage ripple. The LT8711's fixed switching frequency can be set from 100kHz to 750kHz or can be synchronized to an external clock.

The additional features include 100% duty cycle capability when in buck mode, a topology selection pin and adjustable soft-start. LT8711 is available in the 20-lead TSSOP and 20-lead 3mm × 4mm QFN packages.

Packaging

3x4 QFN-20,TSSOP-20

LT8711 Package Drawing
LT8711 Package Drawing
Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price
(1-99)
Price
(1k)*
LT8711EUDC#TRPBF QFN 20 E $3.35 $2.36
LT8711IFE#PBF TSSOP 20 I $3.93 $2.75
LT8711IUDC#TRPBF QFN 20 I $3.63 $2.56
LT8711IUDC#PBF QFN 20 I $3.57 $2.50
LT8711EUDC#PBF QFN 20 E $3.29 $2.30
LT8711IFE#TRPBF TSSOP 20 I $3.99 $2.81
LT8711EFE#TRPBF TSSOP 20 E $3.63 $2.56
LT8711EFE#PBF TSSOP 20 E $3.57 $2.50
* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.


Part Number Description Price Documentation
DC2234A LT8711 Micropower Synchronous Sepic Converter Contact Factory