Datasheet > LT8608B

LT8608B

更新时间： 2022-02-26 14:07:53

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
24页	2635K
描述
42V, 1.5A Synchronous Step-Down Regulator with 2.5Î¼A Quiescent Current

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LT8608B 数据手册

LT8608/LT8608B

42V, 1.5A Synchronous Step-Down Regulator

with 2.5µA Quiescent Current

FEATURES

DESCRIPTION

The LT^®8608 is a compact, high efficiency, high speed

synchronous monolithic step-down switching regulator

thatconsumesonly1.7µAofquiescentcurrent.TheLT8608

can deliver 1.5A of continuous current. Low ripple Burst

Mode operation enables high efficiency down to very low

output currents while keeping the output ripple below

10mV. Internal compensation with peak current mode

topology allows the use of small inductors and results in

fast transient response and good loop stability. The EN/

UV pin has an accurate 1V threshold and can be used to

Wide Input Voltage Range: 3.0V to 42V

Ultralow Quiescent Current Burst Mode^®Operation:

<2.5µA I Regulating 12V to 3.3V

OUT

Output Ripple <10mV

P-P

High Efﬁciency 2MHz Synchronous Operation:

>92% Efﬁciency at 0.5A, 5V

from 12V

OUT

1.5A Continuous Output Current

Fast Minimum Switch-On Time: 35ns

Adjustable and Synchronizable: 200kHz to 2.2MHz

Spread Spectrum Frequency Modulation for Low EMI

Allows Use of Small Inductors

program V undervoltage lockout or to shut down the

Low Dropout

LT8608. The PG flag signals when V

is within 8.5ꢀ of

OUT

Peak Current Mode Operation

theprogrammedoutputvoltageaswellasfaultconditions.

Accurate 1V Enable Pin Threshold

Internal Compensation

The MSOP package includes a SYNC pin to synchronize

to an external clock, or to select Burst Mode operation

or pulse-skipping with or without spread-spectrum; the

TR/SS pin programs soft-start or tracking. The DFN

package omits these pins and can be purchased in pulse-

skipping or Burst Mode operation varieties.

Output Soft-Start and Tracking

Small 10-Lead MSOP Package or 8-Lead

2mm × 2mm DFN Package

APPLICATIONS

PACKAGE

MSE

SYNC FUNCTIONALITY

Programmable

LT8608MSE

LT8608DFN

LT8608BDFN

General Purpose Step Down

DFN

Burst Mode Operation

Pulse-Skipping Mode

Low EMI Step Down

DFN

All registered trademarks and trademarks are the property of their respective owners.

12V_INto 5V_OUTEfficiency

TYPICAL APPLICATION

ꢀꢁꢁ

ꢀꢁ

5V, 2MHz Step-Down

ꢀ

ꢁꢂ

ꢀ

ꢃꢄꢅ

ꢄꢟ

ꢁꢂ

ꢔꢌꢔꢀ ꢅꢉ ꢒꢏꢀ

ꢒꢌꢓꢎꢊ

ꢋꢌꢍꢎꢊ

ꢉꢂ ꢉꢊꢊ

ꢆꢂꢇꢈꢀ

ꢄꢛꢂC

ꢏꢌꢏꢎꢚ

ꢀ

ꢉꢈꢅ

ꢔꢀ

ꢍꢌꢔꢕ

ꢍꢋꢐꢊ

ꢜꢅꢖꢘꢋꢖ

ꢁꢂꢅꢀ

ꢠꢝ

ꢊꢃ

ꢅRꢇꢄꢄ

Rꢅ

ꢍꢑ

ꢀꢀ

ꢍꢎꢊ ꢍꢖꢌꢏꢗ

ꢍꢖꢓꢗ

ꢏꢏꢎꢊ

ꢀ

ꢀ ꢁꢂꢃꢄ

ꢀꢁ

ꢝꢂꢞ

ꢀꢁ

ꢖꢘꢋꢖ ꢅꢕꢋꢍꢙ

ꢀ

ꢀꢁꢂꢃ ꢀꢁꢂꢀ ꢀꢁꢂꢃ ꢀꢁꢂꢂ ꢀꢁꢂꢃ ꢀꢁꢂꢃ

ꢀꢁꢂ

ꢀ

ꢀꢁꢂ

ꢀꢁꢂꢀ ꢃꢄꢂꢅꢆ

Rev C

Document Feedback

For more information www.analog.com

12 3 4 5 6 7...24

中文翻译

下载PDF

与LT8608B相关器件

型号	品牌	获取价格	描述	数据表
LT8608EMSE#PBF	Linear	获取价格	LT8608 - 42V, 1.5A Synchronous Step-Down Regulator with 2.5µA Quiescent Current;
LT8608IMSE#PBF	Linear	获取价格	LT8608 - 42V, 1.5A Synchronous Step-Down Regulator with 2.5µA Quiescent Current;
LT8608S	ADI	获取价格	具有3μA静态电流的42V、1.5A同步降压稳压器
LT8609	Linear	获取价格	42V, Low IQ, Quad Output Triple Monolithic Buck Converter and Boost Controller
LT8609	ADI	获取价格	具有 2.5μA 静态电流的 42V、3A 同步降压型稳压器
LT8609A	Linear	获取价格	42V, Low IQ, Quad Output Triple Monolithic Buck Converter and Boost Controller
LT8609AEMSE#TRPBF	Linear	获取价格	LT8609/LT8609A/LT8609B - 42V, 2A/3A Peak Synchronous Step-Down Regulator with 2.5&#181
LT8609AIMSE#PBF	Linear	获取价格	LT8609/LT8609A/LT8609B - 42V, 2A/3A Peak Synchronous Step-Down Regulator with 2.5&#181
LT8609B	ADI	获取价格	42V, 750mA Synchronous Step-Down Regulator wi
LT8609BEMSE#PBF	Linear	获取价格	LT8609/LT8609A/LT8609B - 42V, 2A/3A Peak Synchronous Step-Down Regulator with 2.5&#181

与LT8608B相关文章

压敏电阻器在直流电路中的过压保护应用探讨
2024-06-07

2
电感耐压值及其与电感大小的关系
2024-06-07

5
CNY17F光耦合器：特性、应用、封装、引脚功能及替换型号解析
2024-06-07

4
DS1307资料解析：特性、引脚说明、替代推荐
2024-06-07

3

产品中心

服务支持

精选活动

关于我们

帮助中心

LT8608B

LT8608B 数据手册

与LT8608B相关器件

与LT8608B相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LT8608B

LT8608B 数据手册

与LT8608B相关器件

与LT8608B相关文章

您还可以找

您在本页遇到什么问题？