Datasheet > LT8303

LT8303

更新时间： 2024-10-20 14:58:23

品牌	Logo	应用领域
亚德诺 - ADI		开关转换器
页数	文件大小	规格书
24页	2219K
描述
具 150V/450mA 开关的 100VIN 微功率隔离型反激式转换器

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LT8303 数据手册

LT8303

100V Micropower Isolated

Flyback Converter with

150V/450mA Switch

DESCRIPTION

FEATURES

TheLT^®8303isamicropowerhighvoltageisolatedflyback

converter. By sampling the isolated output voltage directly

from the primary-side flyback waveform, the part requires

nothirdwindingoropto-isolatorforregulation.Theoutput

voltage is programmed with a single external resistor.

Internalcompensationandsoft-startfurtherreduceexternal

component count. Boundary mode operation provides a

small magnetic solution with excellent load regulation.

LowrippleBurstModeoperationmaintainshighefficiency

at light load while minimizing the output voltage ripple.

A 450mA, 150V DMOS power switch is integrated along

withallhighvoltagecircuitryandcontrollogicintoa5-lead

ThinSOT™ package.

5.5V to 100V Input Voltage Range

450mA, 150V Internal DMOS Power Switch

Up to 5W of Output Power

Low Quiescent Current:

70µA in Sleep Mode

280µA 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

Set with a Single External Resistor

OUT

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

The LT8303 operates from an input voltages range of 5.5V

to 100V and can deliver up to 5W of isolated output power.

Thehighlevelofintegrationandtheuseofboundarymode

and low ripple Burst Mode operations result in a simple to

use, lowcomponentcount, andhighefficiencyapplication

solution for isolated power delivery.

AEC-Q100 Qualified for Automotive Applications

APPLICATIONS

Isolated Telecom, Datacom, Automotive, Industrial,

L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks

and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the

property of their respective owners. Protected by U.S. Patents, including 5438499, 7463497,

and 7471522.

and Medical Power Supplies

Isolated Auxiliary/Housekeeping Power Supplies

TYPICAL APPLICATION

6V to 80V_IN, 5V_OUTIsolated Flyback Converter

Efficiency vs Load Current

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Rev. B

For more information www.analog.com

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与LT8303相关器件

型号	品牌	获取价格	描述	数据表
LT8303ES5#PBF	Linear	获取价格	LT8303 - 100Vin Micropower Isolated Flyback Converter with 150V/450mA Switch; Package: SOT
LT8303ES5#TRMPBF	Linear	获取价格	LT8303 - 100Vin Micropower Isolated Flyback Converter with 150V/450mA Switch; Package: SOT
LT8303ES5#TRPBF	Linear	获取价格	LT8303 - 100Vin Micropower Isolated Flyback Converter with 150V/450mA Switch; Package: SOT
LT8304	ADI	获取价格	具 150V/2A 开关的 100VIN 微功率 No-Opto 隔离型反激式转换器
LT8306	ADI	获取价格	60V Low IQ No-Opto Isolated Flyback Controller
LT8309	ADI	获取价格	副边同步整流器驱动器
LT831	ETC	获取价格	Optoelectronic
LT8310	Linear	获取价格	100VIN Forward Converter Controller
LT8310	ADI	获取价格	100VIN 正激式转换器控制器
LT8310_15	Linear	获取价格	100VIN Forward Converter Controller

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