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LT8711
Micropower Synchronous Multitopology Controller with 42V Input Capability
Overview
Features and Benefits
- Easily Configurable as a Synchronous Buck, Boost, SEPIC, ZETA or Nonsynchronous Buck-Boost Converter
- Wide Input Range: 4.5V to 42V (VIN Can Operate to 0V, when EXTVCC > 4.5V)
- Automatic Low Noise Burst Mode® Operation
- Low IQ in Burst Mode Operation (15μA Operating)
- Input Voltage Regulation for High Impedance Source
- 100% Duty Cycle in Dropout (Buck Mode)
- 2A Gate Drivers (BG and TG) n Adjustable Soft-Start with One Capacitor
- Frequency Programmable from 100kHz to 750kHz
- Can Be Synchronized to External Clock
- Available in 20-Lead TSSOP and 20-Lead 3mm×4mm QFN Packages
Product Details
The LT8711 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.
Applications
- General Purpose DC/DC Conversion
- Automotive Systems
- Industrial Supplies
- Solar Panel Power Converter
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation
Reliability Data (1)
Tools & Simulations
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Reference Materials
Press Releases (1)
Design Resources
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PCN-PDN Information
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LT8711 Discussions
Sample & Buy
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 Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
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