Datasheet > LT8608

LT8608

更新时间： 2023-12-20 18:45:04

品牌	Logo	应用领域
亚德诺 - ADI		稳压器
页数	文件大小	规格书
24页	2778K
描述
具有 2.5μA 静态电流的 42V、1.5A 同步降压型稳压器

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中文翻译

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数据手册

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LT8608 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 syn-

chronous monolithic step-down switching regulator that

consumes only 1.7µA of quiescent current. The LT8608

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

program V_INundervoltage lockout or to shut down the

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

Low Dropout

Peak Current Mode Operation

Accurate 1V Enable Pin Threshold

Internal Compensation

Output Soft-Start and Tracking

Small 10-Lead MSOP Package or 8-Lead

2mm × 2mm DFN Package

LT8608. The PG flag signals when V

the programmed output voltage as well as fault conditions.

is within 8.5% of

OUT

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.

AEC-Q100 Qualified for Automotive Applications

PACKAGE

MSE

SYNC FUNCTIONALITY

Programmable

APPLICATIONS

LT8608MSE

LT8608DFN

LT8608BDFN

DFN

Burst Mode Operation

Pulse-Skipping Mode

General Purpose Step Down

DFN

Low EMI Step Down

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

12V_INto 5V_OUTEfficiency

TYPICAL APPLICATION

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5V, 2MHz Step-Down

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Rev. E

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与LT8608相关器件

型号	品牌	获取价格	描述	数据表
LT8608B	Linear	获取价格	42V, 1.5A Synchronous Step-Down Regulator wit
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

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