LT3686AHMSE#PBF

更新时间： 2024-01-27 01:53:47

品牌	Logo	应用领域
凌特 - Linear		稳压器
页数	文件大小	规格书
28页	551K
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中文翻译

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数据手册

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LT3686AHMSE#PBF 数据手册

LT3686

37V/1.2A Step-Down

Regulator in 3mm × 3mm DFN

FeAtures

Description

The LT^®3686 is a current mode PWM step-down DC/DC

converter with an internal 1.2A power switch, packaged in

10-lead 3mm × 3mm DFN. The wide input range of 3.6V to

37V makes the LT3686 suitable for regulating power from

awidevarietyofsources,including24Vindustrialsupplies

and automotive batteries. Its high maximum frequency al-

lows the use of tiny inductors and capacitors, resulting in

a very small solution. Operating frequency above the AM

band avoids interfering with radio reception, making the

LT3686 particularly suitable for automotive applications.

Wide Input Range:

Operation from 3.6V to 37V

Overvoltage Lockout Protects Circuit Through

55V Transients

Low Minimum On-Time:

Converts 16V to 3.3V

1.2A Output Current

at 2MHz

OUT

Adjustable Frequency: 300kHz to 2.5MHz

Constant Switching Frequency at Light Loads

Tracking and Soft-Start

Precision UVLO

Cycle-by-cycle current limit and DA current sense provide

protectionagainstfaultconditions.Soft-startandfrequency

foldback eliminate input current surge during start-up. An

optional internal regulated active load at the output via the

BDpinkeepstheLT3686atfullswitchingfrequencyatlight

loads, resulting in low, predictable output ripple above the

audioandAMbands.Internalcompensationandaninternal

boost diode reduce external component count.

Short-Circuit Robust

I in Shutdown <1µA

Internally Compensated

10-Lead 3mm × 3mm DFN Package

ApplicAtions

Automotive Systems

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

Technology Corporation. All other trademarks are the property of their respective owners.

Battery-Powered Equipment

Wall Transformer Regulation

Distributed Supply Regulation

typicAl ApplicAtion

3.3V Step-Down Converter

12V_INEfﬁciency (2.1MHz)

6V TO 37V

3.3V

OUT

2.2µF

EN/UVLO

BOOST

0.22µF

6.8µH

OUT

LT3686

GND

3.3V

1.2A

MODE

OUT

MBRM140

31.6k

10nF

10k

22µF

15.4k

3686 TA01a

400

600

800 1000 1200

LOAD CURRENT (mA)

200

(V 6V TO 16V AT 2.1MHz)

3686 TA01b

3686fa

ꢀ

12 3 4 5 6 7...28

中文翻译

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与LT3686AHMSE#PBF相关器件

型号	品牌	获取价格	描述	数据表
LT3686AHMSE#TRPBF	Linear	获取价格	LT3686A - 37V/1.2A Step-Down Regulator in 3mm x 3mm DFN and MSE; Package: MSOP; Pins: 12;
LT3686AIDD#TRPBF	Linear	获取价格	LT3686A - 37V/1.2A Step-Down Regulator in 3mm x 3mm DFN and MSE; Package: DFN; Pins: 10; T
LT3686AIMSE#PBF	Linear	获取价格	LT3686A - 37V/1.2A Step-Down Regulator in 3mm x 3mm DFN and MSE; Package: MSOP; Pins: 12;
LT3686AIMSE#TRPBF	Linear	获取价格	LT3686A - 37V/1.2A Step-Down Regulator in 3mm x 3mm DFN and MSE; Package: MSOP; Pins: 12;
LT3686EDD	Linear	获取价格	37V/1.2A Step-Down Regulator in 3mm × 3mm DFN
LT3686EDD#PBF	Linear	获取价格	LT3686 - 37V/1.2A Step-Down Regulator in 3mm x 3mm DFN; Package: DFN; Pins: 10; Temperatur
LT3686EDD#TRPBF	Linear	获取价格	LT3686 - 37V/1.2A Step-Down Regulator in 3mm x 3mm DFN; Package: DFN; Pins: 10; Temperatur
LT3686EDDPBF	Linear	获取价格	37V/1.2A Step-Down Regulator in 3mm × 3mm DFN
LT3686EDDTRPBF	Linear	获取价格	37V/1.2A Step-Down Regulator in 3mm × 3mm DFN
LT3686HDD#PBF	Linear	获取价格	LT3686 - 37V/1.2A Step-Down Regulator in 3mm x 3mm DFN; Package: DFN; Pins: 10; Temperatur

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