LT8711
RECOMMENDED FOR NEW DESIGNSMicropower Synchronous Multitopology Controller with 42V Input Capability
- Part Models
- 8
- 1ku List Price
- Starting From $3.52
Overview
- 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
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
Documentation
Data Sheet 1
Design Note 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LT8711EFE#PBF | 20-Lead TSSOP w/ EP | ||
| LT8711EFE#TRPBF | 20-Lead TSSOP w/ EP | ||
| LT8711EUDC#PBF | 20-Lead QFN (3mm x 4mm x 0.75mm w/ EP) | ||
| LT8711EUDC#TRPBF | 20-Lead QFN (3mm x 4mm x 0.75mm w/ EP) | ||
| LT8711IFE#PBF | 20-Lead TSSOP w/ EP | ||
| LT8711IFE#TRPBF | 20-Lead TSSOP w/ EP | ||
| LT8711IUDC#PBF | 20-Lead QFN (3mm x 4mm x 0.75mm w/ EP) | ||
| LT8711IUDC#TRPBF | 20-Lead QFN (3mm x 4mm x 0.75mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 6, 2022 - 22_0068 Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL |
||
| LT8711EFE#PBF | PRODUCTION | |
| LT8711EFE#TRPBF | PRODUCTION | |
| LT8711IFE#PBF | PRODUCTION | |
| LT8711IFE#TRPBF | PRODUCTION | |
|
Apr 11, 2019 - 19_0067 Notification of Wafer Fab Location Change for 0.35 BCD Process |
||
| LT8711EFE#PBF | PRODUCTION | |
| LT8711EFE#TRPBF | PRODUCTION | |
| LT8711EUDC#PBF | PRODUCTION | |
| LT8711EUDC#TRPBF | PRODUCTION | |
| LT8711IFE#PBF | PRODUCTION | |
| LT8711IFE#TRPBF | PRODUCTION | |
| LT8711IUDC#PBF | PRODUCTION | |
| LT8711IUDC#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareTools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LT8711
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
