Datasheet > 电源电路 > 开关式稳压器或控制器> LT3724IFE-PBF

LT3724IFE-PBF

更新时间： 2024-11-05 05:43:35

品牌	Logo	应用领域
凌特 - Linear		开关控制器
页数	文件大小	规格书
24页	293K
描述
High Voltage, Current Mode Switching Regulator Controller

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中文翻译

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数据手册

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LT3724IFE-PBF 数据手册

LT3724

High Voltage, Current Mode

Switching Regulator Controller

FEATURES

DESCRIPTION

TheLT^®3724isaDC/DCcontrollerusedformediumpower,

low part count, low cost, high efﬁciency supplies. It of-

fers a wide 4V-60V input range (7.5V minimum startup

voltage)andcanimplementstep-down, step-up, inverting

and SEPIC topologies.

Wide Input Range: 4V to 60V

Output Voltages up to 36V (Step-Down)

Burst Mode^®Operation: <100μA Supply Current

10μA Shutdown Supply Current

1.3ꢀ ꢁeference Accuracy

200kHz Fixed Frequency

The LT3724 includes Burst Mode operation, which re-

duces quiescent current below 100μA and maintains

high efﬁciency at light loads. An internal high voltage bias

regulator allows for simple biasing and can be back driven

to increase efﬁciency.

Drives N-Channel MOSFET

Programmable Soft-Start

Programmable Undervoltage Lockout

Internal High Voltage ꢁegulator for Gate Drive

Thermal Shutdown

Additional features include ﬁxed frequency current mode

controlforfastlineandloadtransientresponse;agatedriver

capable of driving large N-channel MOSFETs; a precision

undervoltage lockout function; 10μA shutdown current;

short-circuit protection; and a programmable soft-start

function that directly controls output voltage slew rates at

startup which limits inrush current, minimizes overshoot

and facilitates supply sequencing.

Current Limit Unaffected by Duty Cycle

16-Pin Thermally Enhanced TSSOP Package

APPLICATIONS

Industrial Power Distribution

12V and 42V Automotive and Heavy Equipment

High Voltage Single Board Systems

Distributed Power Systems

Avionics

Telecom Power

The LT3724 is available in a 16-lead thermally enhanced

TSSOP package.

L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

Burst Mode is a trademark of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

Protected by U.S. Patents including 5731694, 6498466, 6611131.

TYPICAL APPLICATION

High Voltage Step-Down Regulator

Efﬁciency and Power Loss

vs Load Current

30V TO

60V

BOOST

68μF

0.22μF

10Ω

Si7852

EFFICIENCY

LT3724

0.025Ω

OUT

SHDN

24V

47μH

75W

68.1k

200k

SS3H9

OUT

330μF

Burst_EN

1μF

LOSS

PGND

40.2k

= 48V

SENSE

680pF

120pF

1000pF

–

0.1

SGND

SENSE

LOAD CUꢁꢁENT (A)

4.99k

93.1k

3724 TA01b

3724 TA01a

3724fc

12 3 4 5 6 7...24

中文翻译

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与LT3724IFE-PBF相关器件

型号	品牌	获取价格	描述	数据表
LT3724IFE-TRPBF	Linear	获取价格	High Voltage, Current Mode Switching Regulator Controller
LT3724MPFE	Linear	获取价格	High Voltage, Current Mode Switching Regulator Controller
LT3724MPFE#PBF	Linear	获取价格	LT3724 - High Voltage, Current Mode Switching Regulator Controller; Package: TSSOP; Pins:
LT3724MPFE#TR	Linear	获取价格	LT3724 - High Voltage, Current Mode Switching Regulator Controller; Package: TSSOP; Pins:
LT3724MPFE#TRPBF	Linear	获取价格	LT3724 - High Voltage, Current Mode Switching Regulator Controller; Package: TSSOP; Pins:
LT3724MPFE-TR	Linear	获取价格	High Voltage, Current Mode Switching Regulator Controller
LT373L	ETC	获取价格	Optoelectronic
LT373L-UR	ETC	获取价格	Optoelectronic
LT3740	Linear	获取价格	Wide Operating Range, Valley Mode, No RSENSE™
LT3740	ADI	获取价格	宽工作范围、谷值模式、No R SENSE? 同步降压型控制器

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