LT8300
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LT8300

100VIN Micropower Isolated Flyback Converter with 150V/260mA Switch

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LTspice LT8300 Demo Circuit - 100V µPower Isolated Flyback Converter (22-75V to 5V @ 0.25A) Download 2.00KB LTspice LT8300 - Switching Regulators Download 1.81 KB
Part Models 14
1ku List Price Starting From $3.61
Features
  • 6V to 100V Input Voltage Range
  • 260mA, 150V Internal DMOS Power Switch
  • Low Quiescent Current
    • 70µA in Sleep Mode
    • 330µA in Active Mode
  • Boundary Mode Operation at Heavy Load
  • Low-Ripple Burst Mode® Operation at Light Load
  • Minimum Load <0.5% (Typ) of Full Output
  • VOUT Set with a Single External Resistor
  • No Transformer Third Winding or Opto-Isolator Required for Regulation
  • Accurate EN/UVLO Threshold and Hysteresis
  • Internal Compensation and Soft-Start
  • 5-Lead TSOT-23 Package
  • AEC-Q100 Qualified for Automotive Applications
Additional Details
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The LT8300 is a micropower high voltage isolated flyback converter. By sampling the isolated output voltage directly from the primary-side flyback waveform, the part requires no third winding or opto-isolator for regulation. The output voltage is programmed with a single external resistor. Internal compensation and soft-start further reduce external component count. Boundary mode operation provides a small magnetic solution with excellent load regulation. Low ripple Burst Mode operation maintains high efficiency at light load while minimizing the output voltage ripple. A 260mA, 150V DMOS power switch is integrated along with all high voltage circuitry and control logic into a 5-lead ThinSOT™ package.

The LT8300 operates from an input voltages range of 6V to 100V and can deliver up to 2W of isolated output power. The high level of integration and the use of boundary and low ripple burst modes result in a simple to use, low component count, and high efficiency application solution for isolated power delivery.

Applications

  • Isolated Telecom, Automotive, Industrial, Medical Power Supplies
  • Isolated Auxiliary/Housekeeping Power Supplies
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file View Data Sheet (Rev.A)
Documentation View All Documentation
LTspice LT8300 Demo Circuit - 100V µPower Isolated Flyback Converter (22-75V to 5V @ 0.25A) Download 2.00KB LTspice LT8300 - Switching Regulators Download 1.81 KB
Part Models 14
1ku List Price Starting From $3.61
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LT8300

Documentation

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Data Sheet

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UPDATED 08/14/2012
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LT8300: 100VIN Micropower Isolated Flyback Converter with 150V/260mA Switch Data Sheet (Rev.A)

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UPDATED 09/26/2012
Japanese

LT8300: 150V/260mAスイッチを備えた100V入力のマイクロパワー絶縁型フライバック・コンバータ データシート

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Design Note

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UPDATED 02/25/2014
English
DN525 - Monolithic No-Opto Isolated Flyback Converter Provides Versatile Solution redirect icon

252.00K

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UPDATED 02/24/2014
Chinese
DN525 - 无需使用光耦合器的单片隔离型反激式转换器可提供通用型解决方案 redirect icon

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UPDATED 03/13/2014
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DN525 - 幅広いソリューションを提供するオプトカプラ不要のモノリシック 絶縁型フライバック・コンバータ redirect icon

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UPDATED 10/24/2012
English
DN509 - Micropower Isolated Flyback Converter with Input Voltage Range from 6V to 100V redirect icon

706.00K

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UPDATED 11/19/2012
Chinese
DN509 - 具 6V 至 100V 输入电压范围的微功率隔离反激式转换器 redirect icon

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UPDATED 01/07/2013
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DN509 - 入力電圧範囲6V ～ 100V のマイクロパワー絶縁型フライバック・ コンバータ redirect icon

297.00K

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User Guide

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UPDATED 09/26/2012
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DC1825A - Demo Manual redirect icon

181.00K

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Reliability Data

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UPDATED 03/23/2018
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R570 Reliability Data redirect icon

415.69 K

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Application Note

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UPDATED 03/11/2019
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AN-1599: IEC 61000-4-x and CISPR 11 Tested Analog Output Design with the AD5758 for Industrial Process Control Applications (Rev.B) redirect icon

3.08 M

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UPDATED 03/11/2019
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AN-1599：按照IEC 61000-4-x和CISPR 11标准测试、采用AD5758、适合工业过程控制应用的模拟输出设计 (Rev.0) redirect icon

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Documentation

Documentation

Technical Documents 6
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Data Sheet 1

LT8300: 100VIN Micropower Isolated Flyback Converter with 150V/260mA Switch Data Sheet (Rev.A)

Reliability Data 1

R570 Reliability Data

User Guide 1

DC1825A - Demo Manual

Application Note 1

AN-1599: IEC 61000-4-x and CISPR 11 Tested Analog Output Design with the AD5758 for Industrial Process Control Applications (Rev.B)

Design Note 2

DN525 - Monolithic No-Opto Isolated Flyback Converter Provides Versatile Solution
DN509 - Micropower Isolated Flyback Converter with Input Voltage Range from 6V to 100V

Solutions Bulletin & Brochure 2

Isolated Power Your Way
Simple Isolated Power Excellent Regulation Over Line, Load & Temp

Product Selector Card 1

No-Opto Isolated Flyback Converters

Video

1

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Video

2017-09-18

Simple and Efficient Sub-2W Isolated Power Supply

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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
LT8300ES5#TRMPBF 5-Lead TSOT-23 external-link
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LT8300ES5#TRPBF 5-Lead TSOT-23 external-link
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LT8300ES5#WTRMPBF 5-Lead TSOT-23 external-link
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LT8300ES5#WTRPBF 5-Lead TSOT-23 external-link
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LT8300HS5#TRMPBF 5-Lead TSOT-23 external-link
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LT8300HS5#TRPBF 5-Lead TSOT-23 external-link
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LT8300HS5#WTRMPBF 5-Lead TSOT-23 external-link
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LT8300HS5#WTRPBF 5-Lead TSOT-23 external-link
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LT8300IS5#TRMPBF 5-Lead TSOT-23 external-link
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LT8300IS5#TRPBF 5-Lead TSOT-23 external-link
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LT8300IS5#WTRMPBF 5-Lead TSOT-23 external-link
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  • Material Declaration external-link
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LT8300IS5#WTRPBF 5-Lead TSOT-23 external-link
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LT8300MPS5#TRMPBF 5-Lead TSOT-23 external-link
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LT8300MPS5#TRPBF 5-Lead TSOT-23 external-link
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Apr 11, 2019

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Notification of Wafer Fab Location Change for 0.35 BCD Process

LT8300ES5#TRMPBF

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LT8300ES5#TRPBF

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LT8300HS5#TRMPBF

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Sep 14, 2021

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Test Site Transfer from Analog Devices Singapore to Analog Devices General Trias Philippines

LT8300HS5#TRMPBF

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LT8300HS5#TRPBF

PRODUCTION

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PCN20_0231_Form

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Test Correlation Report

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Apr 11, 2019

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Notification of Wafer Fab Location Change for 0.35 BCD Process

LT8300ES5#TRMPBF

PRODUCTION

LT8300ES5#TRPBF

PRODUCTION

LT8300HS5#TRMPBF

PRODUCTION

LT8300HS5#TRPBF

PRODUCTION

LT8300IS5#TRMPBF

PRODUCTION

LT8300IS5#TRPBF

PRODUCTION

LT8300MPS5#TRMPBF

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LT8300MPS5#TRPBF

PRODUCTION

pdf

PCN19_0067_Form

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xls

Material_Report

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xlsm

Delta Qualification Matrix

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pdf

Qualification Results Summary

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Detailed Parts List

pdf

Other

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Sep 14, 2021

- 20_0231

arrow down

Test Site Transfer from Analog Devices Singapore to Analog Devices General Trias Philippines

LT8300HS5#TRMPBF

PRODUCTION

LT8300HS5#TRPBF

PRODUCTION

pdf

PCN20_0231_Form

external-icon
Test Correlation Report
Other

xls

Material_Report

Download

xlsm

Delta Qualification Matrix

Download
Other
Qualification Results Summary
Test Correlation Report
Qualification Results Summary
Test Correlation Report
Qualification Results Summary
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Software & Part Ecosystem

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Evaluation Kit

Evaluation Kits 1

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DC1825A

LT8300ES5 Demo Board | Isolated Flyback, 22V ≤ VIN ≤ 75V, VOUT = 5V @ 250mA

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DC1825A

LT8300ES5 Demo Board | Isolated Flyback, 22V ≤ VIN ≤ 75V, VOUT = 5V @ 250mA

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DC1825A
LT8300ES5 Demo Board | Isolated Flyback, 22V ≤ VIN ≤ 75V, VOUT = 5V @ 250mA
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Product Detail

Demonstration circuit 1825A is an isolated flyback converter featuring the LT8300. This demo circuit outputs 5.0V, and maintains tight regulation with a load current from ~1mA to 250mA and over an input from 22V to 75V, with a nominal 48V. The output current capability increases with the input voltage. The DC1825A needs a very small minimum load (~1mA) to regulate the output voltage, thanks to the accurate current limit capability and ultra low switching frequency of the LT8300 at very light load. The standby input current of the demo circuit is less than 400μA (typical) because of the low quiescent current design of the IC and very small minimum load requirement.


 


Resources

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DC1825A - Design Files Download

566.00K

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DC1825A - Demo Manual Download

181.00K

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DC1825A - Schematic Download

34.00K

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Evaluation Kits1

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DC1825A

LT8300ES5 Demo Board | Isolated Flyback, 22V ≤ VIN ≤ 75V, VOUT = 5V @ 250mA
Tools & Simulations

Tools & Simulations 1

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.

spice tool Lt Spice

LT8300 Demo Circuit - 100V µPower Isolated Flyback Converter (22-75V to 5V @ 0.25A) Download

2.00K

spice tool Lt Spice

LT8300 - Switching Regulators Download

1.81 K

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