LT8710

RECOMMENDED FOR NEW DESIGNS

Synchronous SEPIC/Inverting/Boost Controller with Output Current Control

Part Models: 4
1ku List Price: Starting From $4.09

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Overview

Wide Input Range: 4.5V to 80V
Rail-to-Rail Output Current Monitor and Control
Input Voltage Regulation for High Impedance Inputs
C/10 or Power Good Indication Pin
MODE Pin for Forced CCM or Pulse-Skipping Operation
Switching Frequency Up to 750kHz
Easily Configurable as a Boost, SEPIC, Inverting or Flyback Converter with Single Feedback Pin
Can Be Synchronized to External Clock
High Gain EN/FBIN Pin Accepts Slowly Varying Input Signals
20-Lead TSSOP Package

The LT8710 is a synchronous PWM DC/DC controller with a rail-to-rail output current monitor and control. The LT8710 is ideal for many types of power supply topologies and can be easily configured for boost, SEPIC, inverting, or flyback configurations.

The LT8710’s rail-to-rail output current monitor and control allows the part to be configured in current limited applications such as battery charging. The FLAG pin can be used as a power good indication or C/10 indication allowing for accurate bulk and float battery voltages.

The LT8710’s switching frequency range can be set between 100kHz and 750kHz using an external resistor or synchronized to an external clock.

The LT8710 also features innovative EN/FBIN pin circuitry that allows for slowly varying input signals and an adjustable undervoltage lockout function. The pin is also used for input voltage regulation to avoid collapsing a high impedance input supply. Additional features such as frequency foldback and soft-start are integrated. The LT8710 is available in a 20-lead TSSOP package.

Applications

High Power Local Power Supply
Wide Input Voltage Range SEPIC/Inverting
Lead Acid Battery Charger
Automotive Engine Control Unit (ECU) Power
Solar Panel Power Converter

Part Models: 4
1ku List Price: Starting From $4.09

Documentation

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
LT8710EFE#PBF	20-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT8710EFE#TRPBF	20-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT8710IFE#PBF	20-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT8710IFE#TRPBF	20-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 6, 2022 - 22_0068 Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL
		PCN22_0068_Form Material_Report Delta Qualification Matrix
LT8710EFE#PBF	PRODUCTION
LT8710EFE#TRPBF	PRODUCTION
LT8710IFE#PBF	PRODUCTION
LT8710IFE#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Protection Switches & Controllers 2
LTC4364	RECOMMENDED FOR NEW DESIGNS	Surge Stopper with Ideal Diode
LTC4359	RECOMMENDED FOR NEW DESIGNS	Ideal Diode Controller with Reverse Input Protection

Parts	Product Life Cycle	Description
LT8709	RECOMMENDED FOR NEW DESIGNS	Negative Input Synchronous Multi-Topology DC/DC Controller

Tools & Simulations

LTspice 3

Models for the following parts are available in LTspice:

LT8710

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.

Evaluation Kits

LT8710EFE Inverting Demo Board | 4.5V ≤ VIN ≤ 28V; VOUT: -5V @ 6A

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Product Details

Demonstration circuit 2067A is a synchronous inverting converter (CUK topology) featuring the LT8710 switching controller. It regulates a –5V, 6A output from a 4.5V to 28V input source, and operates at 300kHz switching frequency. The LT8710 features simple negative or positive output voltage programming. The DC2067 programs a –5V output with a single resistor.