LT8210

RECOMMENDED FOR NEW DESIGNS

LT8210

100V V_IN and V_OUT Synchronous 4-Switch Buck‑Boost DC/DC Controller with PassThru

RECOMMENDED FOR NEW DESIGNS

RECOMMENDED FOR NEW DESIGNS

LT8210 Application Circuit slide

LT8210-pc slide

LT8210 Pin Configuration slide

LT8210 Performance Graph slide

LT8210 Application Circuit

LT8210 Pin Configuration

LT8210 Performance Graph

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Part Models 8

1ku List Price Starting From $7.01

Features

Pin-Selectable PassThru or Fixed Output CCM, DCM, Burst Mode^® Operation
Programmable Non-Switching PassThru Window
18μA PassThru Mode I_Q with 99.9% Efficiency
V_IN Range: 2.8V to 100V (4.5V for Start-Up)
V_OUT Range: 1V to 100V
Reverse Input Protection to –40V
±1.25% Output Voltage Accuracy (–40°C to 125°C)
±3% Accurate Current Monitoring
±5% Accurate Current Regulation
10V Quad N-Channel MOSFET Gate Drivers

EXTV_CC LDO Powers Drivers from V_OUT/External Rail
±20% Cycle-by-Cycle Inductor Current Limit
No Top MOSFET Refresh Noise in Buck or Boost
Fixed/Phase-Lockable Frequency: 80kHz to 400kHz
Spread Spectrum Frequency Modulation for Low EMI
Power Good Output Voltage/Overcurrent Monitor
Available in a 38-Lead TSSOP and 40-Lead (6mm x 6mm) QFN Packages

Additional Details

The LT8210 is a 4-switch synchronous buck-boost DC/DC controller that can operate in passthru, forced continuous, pulse-skipping and Burst Mode^® operation. PassThru is a feature that passes the input directly to the output when the input is within a user programmable window. PassThru mode eliminates switching losses and EMI along with maximizing efficiency. For input voltages above or below the passthru window, the buck or boost regulation loops maintain the output at the set maximum or minimum values, respectively.

The GATEV_CC driver supply is regulated to 10.6V allowing the use of standard-level MOSFETs and can be powered through the EXTV_CC pin for improved efficiency. The GATEV_CC regulator is back-drive-protected to ride through input brownouts while maintaining regulation. Optional reverse input protection down to –40V can be implemented with the addition of a single N-channel MOSFET. The LT8210 includes a precision current sense amplifier that can accurately monitor and limit output or input average current.

Applications

Automotive, Industrial, Telecom, Avionics Systems
Automotive Start-Stop, Emergency Call Applications
ISO 7637, ISO 16750, MIL-1275, DO-160 Applications

View All Documentation

Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

Search

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Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

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Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 8

1ku List Price Starting From $7.01

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Technical Documents 6

LT8210: 100V V_IN and V_OUT Synchronous 4-Switch Buck-Boost DC/DC Controller with Pass-Thru Data Sheet (Rev.B) 06/21/2019

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R570 Reliability Data 03/23/2018

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DC2814A-B Demo Manual 09/25/2019

DC2814A-A Demo Manual 09/25/2019

DC2814A-C Demo Manual 09/25/2019

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4-Switch Buck-Boost Controller with Pass-Thru Capability Eliminates Switching Noise 11/01/2019

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Reference Materials 5

Why Using PassThru Technology Can Help Extend an Energy Storage System’s Life 06/01/2023

Protecting and Powering Automotive Electronics Systems with No Switching Noise and 99.9% Efficiency 02/01/2020

Video

3

Thumbnail Image

Video

2020-02-27

03:24

LT8210 Buck-Boost Controller with Pass-Thru Superimposed AC Demo

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Thumbnail Image

Video

2020-10-20

03:24

Superimposed AC/Audio Tests of the LT8210

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Thumbnail Image

Video

2024-04-30

01:55

Increase System Efficiency with ADI's PassThru Technology

Learn More

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Design Resources 8

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
LT8210EFE#PBF	38-Lead TSSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8210EFE#TRPBF	38-Lead TSSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8210EUJ#PBF	40-Lead QFN (6mm x 6mm x 0.75mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8210EUJ#TRPBF	40-Lead QFN (6mm x 6mm x 0.75mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8210IFE#PBF	38-Lead TSSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8210IFE#TRPBF	38-Lead TSSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8210IUJ#PBF	40-Lead QFN (6mm x 6mm x 0.75mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8210IUJ#TRPBF	40-Lead QFN (6mm x 6mm x 0.75mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

LT8210EFE#PBF
Pin/Package Drawing
38-Lead TSSOP w/ EP
Documentation

HTML Material Declaration

external-link

HTML Reliablity Data

external-link

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT8210EFE#TRPBF
Pin/Package Drawing
38-Lead TSSOP w/ EP
Documentation

HTML Material Declaration

external-link

HTML Reliablity Data

external-link

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT8210EUJ#PBF
Pin/Package Drawing
40-Lead QFN (6mm x 6mm x 0.75mm w/ EP)
Documentation

HTML Material Declaration

external-link

HTML Reliablity Data

external-link

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT8210EUJ#TRPBF
Pin/Package Drawing
40-Lead QFN (6mm x 6mm x 0.75mm w/ EP)
Documentation

HTML Material Declaration

external-link

HTML Reliablity Data

external-link

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT8210IFE#PBF
Pin/Package Drawing
38-Lead TSSOP w/ EP
Documentation

HTML Material Declaration

external-link

HTML Reliablity Data

external-link

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT8210IFE#TRPBF
Pin/Package Drawing
38-Lead TSSOP w/ EP
Documentation

HTML Material Declaration

external-link

HTML Reliablity Data

external-link

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT8210IUJ#PBF
Pin/Package Drawing
40-Lead QFN (6mm x 6mm x 0.75mm w/ EP)
Documentation

HTML Material Declaration

external-link

HTML Reliablity Data

external-link

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT8210IUJ#TRPBF
Pin/Package Drawing
40-Lead QFN (6mm x 6mm x 0.75mm w/ EP)
Documentation

HTML Material Declaration

external-link

HTML Reliablity Data

external-link

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

PCN/PDN Information

Filter by Model

Part Models

Product Lifecycle

PCN

Apr 6, 2022

- 22_0068

Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

LT8210EFE#PBF

PRODUCTION

LT8210EFE#TRPBF

PRODUCTION

LT8210IFE#PBF

PRODUCTION

LT8210IFE#TRPBF

PRODUCTION

pdf

PCN22_0068_Form

xls

Material_Report

xlsm

Delta Qualification Matrix

Mar 20, 2020

- 19_0067

Notification of Wafer Fab Location Change for 0.35 BCD Process

LT8210EFE#PBF

PRODUCTION

LT8210EFE#TRPBF

PRODUCTION

LT8210EUJ#PBF

PRODUCTION

LT8210EUJ#TRPBF

PRODUCTION

LT8210IFE#PBF

PRODUCTION

LT8210IFE#TRPBF

PRODUCTION

LT8210IUJ#PBF

PRODUCTION

LT8210IUJ#TRPBF

PRODUCTION

pdf

PCN19_0067_Form

xls

Material_Report

pdf

Qualification Results Summary

pdf

Other

Filter by Model

Part Models

Product Lifecycle

PCN

Apr 6, 2022

- 22_0068

Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

LT8210EFE#PBF

PRODUCTION

LT8210EFE#TRPBF

PRODUCTION

LT8210IFE#PBF

PRODUCTION

LT8210IFE#TRPBF

PRODUCTION

pdf

PCN22_0068_Form

xls

Material_Report

xlsm

Delta Qualification Matrix

Mar 20, 2020

- 19_0067

Notification of Wafer Fab Location Change for 0.35 BCD Process

LT8210EFE#PBF

PRODUCTION

LT8210EFE#TRPBF

PRODUCTION

LT8210EUJ#PBF

PRODUCTION

LT8210EUJ#TRPBF

PRODUCTION

LT8210IFE#PBF

PRODUCTION

LT8210IFE#TRPBF

PRODUCTION

LT8210IUJ#PBF

PRODUCTION

LT8210IUJ#TRPBF

PRODUCTION

pdf

PCN19_0067_Form

xls

Material_Report

pdf

Qualification Results Summary

pdf

Other

DC2814A-A

LT8210 Demo Board | 8V to 40VIN, 80VIN Surge (60s), Operates Down to 3.5VIN after Start-Up, VOUT = 8V to 16V at 3A

DC2814A-A

LT8210 Demo Board | 8V to 40VIN, 80VIN Surge (60s), Operates Down to 3.5VIN after Start-Up, VOUT = 8V to 16V at 3A

Buy Now View Details

Product Detail

Demonstration circuit 2814A-A is a high voltage, high efficiency synchronous buck-boost DC/DC converter with an input voltage range of 8V to 80V. After the part has started, the input voltage can run down to 3.5V. It can supply a 3A maximum load current with an output range of 8V to 16V. The demo board features the LT8210EUJ controller. The constant frequency current mode architecture allows a phase-lockable frequency of up to 400kHz, while an optional input or output current feedback loop provides support for applications such as battery charging. With a wide input range, wide output range, and seamless transfers between operation modes, the LT8210 is ideal for industrial, automotive, medical, military, and avionics applications.

The converter has four modes of operation: burst, pulse skip, forced continuous mode, or pass-thru. Pass-thru is a feature that passes the input directly to the output when the input voltage is within a user programmable window. Switching losses drop to zero and efficiency is maximized. For input voltage above or below the pass-thru window, the buck or boost regulation loops maintain the output at the set maximum or minimum values, respectively. Reverse input protection is also implemented on this demo board.

The available versions of the DC2814A are:

DC2814A-A: 8V to 40V_IN, 80V_IN Surge (60s), Operates Down to 3.5V_IN after Start-Up, V_OUT = 8V to 16V at 3A

DC2814A-B: 9V to 36V_IN, 80V_IN Surge (60s), V_OUT = 24V to 36V at 2.5A

DC2814A-C: 26V to 80V_IN, V_OUT = 36V to 56V at 2A

Resources

PDF

DC2814A Schematic

110.17 K

ZIP

DC2814A-A Design Files

5.93 M

PDF

DC2814A-A Demo Manual

919.86 K

Show More

reference details image

DC2814A-C

LT8210 Demo Board | 26V to 80VIN, VOUT = 36V to 56V at 2A

LT8210 Demo Board | 26V to 80VIN, VOUT = 36V to 56V at 2A

Download

Print

DC2814A-C

LT8210 Demo Board | 26V to 80VIN, VOUT = 36V to 56V at 2A

Buy Now View Details

Product Detail

Demonstration circuit 2814A-C is a high voltage, high efficiency synchronous buck-boost DC/DC converter with an input voltage range of 26V to 80V. It can supply a 2A maximum load current with an output range of 36V to 56V. The demo board features the LT8210EUJ controller. The constant frequency current mode architecture allows a phase-lockable frequency of up to 400kHz, while an optional input or output current feedback loop provides support for applications such as battery charging. With a wide input range, wide output range and seamless transfers between operation modes, the LT8210 is ideal for industrial, automotive, medical, military and avionics applications.

The converter has four modes of operation: burst, pulse skip, forced continuous mode, or pass-thru. Pass-thru is a feature that passes the input directly to the output when the input voltage is within a user programmable window. Switching losses drop to zero and efficiency is maximized. For input voltage above or below the pass-thru window the buck or boost regulation loops maintain the output at the set maximum or minimum values, respectively. Reverse input protection to –40V is also implemented on this demo board.

The available versions of the DC2814A are:

DC2814A-A: 8V to 40V_IN, 80V_IN Surge (60s), Operates Down to 3.5V_IN after Start-Up, V_OUT = 8V to 16V at 3A

DC2814A-B: 9V to 36V_IN, 80V_IN Surge (60s), V_OUT = 24V to 36V at 2.5A

DC2814A-C: 26V to 80V_IN, V_OUT = 36V to 56V at 2A

Resources

PDF

DC2814A Schematic

110.17 K

ZIP

DC2814A-C Design Files

5.86 M

PDF

DC2814A-C Demo Manual

930.83 K

Show More

reference details image

DC2814A-B

LT8210 Demo Board | 9V to 36VIN, 80VIN Surge (60s), VOUT = 24V to 36V at 2.5A

LT8210 Demo Board | 9V to 36VIN, 80VIN Surge (60s), VOUT = 24V to 36V at 2.5A

Download

Print

DC2814A-B

LT8210 Demo Board | 9V to 36VIN, 80VIN Surge (60s), VOUT = 24V to 36V at 2.5A

Buy Now View Details

Product Detail

Demonstration circuit 2814A-B is a high voltage, high efficiency synchronous buck-boost DC/DC converter with an input voltage range of 9V to 80V. It can supply a 2.5A maximum load current with an output range of 24V to 34V. The demo board features the LT8210EUJ controller. The constant frequency current mode architecture allows a phase-lockable frequency of up to 400kHz, while an optional input or output current feedback loop provides support for applications such as battery charging. With a wide input range, wide output range, and seamless transfers between operation modes, the LT8210 is ideal for industrial, automotive, medical, military, and avionics applications.

The converter has four modes of operation: burst, pulse skip, forced continuous mode, or pass-thru. Pass-thru is a feature that passes the input directly to the output when the input voltage is within a user programmable window. Switching losses drop to zero and efficiency is maximized. For input voltage above or below the pass-thru window, the buck or boost regulation loops maintain the output at the set maximum or minimum values, respectively. Reverse input protection to –40V is also implemented on this demo board.

The available versions of the DC2814A are:

DC2814A-A: 8V to 40V_IN, 80V_IN Surge (60s), Operates Down to 3.5V_IN after Start-Up, V_OUT = 8V to 16V at 3A

DC2814A-B: 9V to 36V_IN, 80V_IN Surge (60s), V_OUT = 24V to 36V at 2.5A

DC2814A-C: 26V to 80V_IN, V_OUT = 36V to 56V at 2A

Resources

PDF

DC2814A Schematic

110.17 K

ZIP

DC2814A-B Design Files

5.87 M

PDF

DC2814A-B Demo Manual

941.92 K

Show More

DC2814A-A

LT8210 Demo Board | 8V to 40VIN, 80VIN Surge (60s), Operates Down to 3.5VIN after Start-Up, VOUT = 8V to 16V at 3A

evaluation kit item images

DC2814A-C

LT8210 Demo Board | 26V to 80VIN, VOUT = 36V to 56V at 2A

evaluation kit item images

DC2814A-B

LT8210 Demo Board | 9V to 36VIN, 80VIN Surge (60s), VOUT = 24V to 36V at 2.5A

LTspice 2

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

Lt Spice

LT8210 Demo Circuit - Pass-Thru Regulator for Automotive Electronics Systems with 99.9% Efficiency (3-100V to 12V @ 5A)

Lt Spice

LT8210 - Buck-Boost Regulators

1 Years Ago

RE: LT8210 Power Supply Design

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