Datasheet > LTC3534

LTC3534

更新时间： 2024-11-12 11:45:59

品牌	Logo	应用领域
Linear Systems		转换器
页数	文件大小	规格书
40页	618K
描述
40V, 2A Synchronous Buck-Boost DC/DC Converter

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中文翻译

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数据手册

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LTC3534 数据手册

LTC3115-1

40V, 2A Synchronous

Buck-Boost DC/DC

Converter

FEATURES

DESCRIPTION

TheLTC^®3115-1isahighvoltagemonolithicsynchronous

buck-boostDC/DCconverter.Itswide2.7Vto40Vinputand

output voltage ranges make it well suited to a wide variety

of automotive and industrial applications. A proprietary

low noise switching algorithm optimizes efficiency with

input voltages that are above, below or even equal to the

output voltage and ensures seamless transitions between

operational modes.

Wide V Range: 2.7V to 40V

Wide V

Range: 2.7V to 40V

OUT

1A Output Current for V ≥ 3.6V, V

= 5V

OUT

2A Output Current in Step-Down Operation

for V ≥ 6V

Programmable Frequency: 100kHz to 2MHz

Synchronizable Up to 2MHz with an External Clock

Up to 95% Efficiency

30µA No-Load Quiescent Current in Burst Mode^®

Operation

Programmable frequency PWM mode operation provides

low noise, high efficiency operation and the ability to syn-

chronizeswitchingtoanexternalclock.Switchingfrequen-

ciesupto2MHzaresupportedtoallowuseofsmallvalued

inductors for miniaturization of the application circuit. Pin

selectable Burst Mode operation reduces standby current

and improves light load efficiency which combined with a

3µAshutdowncurrentmaketheLTC3115-1ideallysuitedfor

battery-powered applications. Additional features include

output disconnect in shutdown, short-circuit protection

and internal soft-start. The LTC3115-1 is available in ther-

mally enhanced 16-lead 4mm × 5mm × 0.75mm DFN and

20-lead TSSOP packages.

Ultralow Noise Buck-Boost PWM

Internal Soft-Start

3µA Supply Current in Shutdown

Programmable Input Undervoltage Lockout

Small 4mm × 5mm × 0.75mm DFN Package

Thermally Enhanced 20-Lead TSSOP Package

APPLICATIONS

24V/28V Industrial Applications

Automotive Power Systems

Telecom, Servers and Networking Equipment

FireWire Regulator

Multiple Power Source Supplies

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

trademarks and No R

is a trademark of Linear Technology Corporation. All other

SENSE

trademarks are the property of their respective owners. Protected by U.S. Patents including

6404251, 6166527 and others pending.

TYPICAL APPLICATION

Efficiency vs V_IN

10µH

= 0.5A

LOAD

0.1µF

BST1 SW1

SW2 BST2

= 1A

LOAD

2.7V TO

40V

1A V > 3.6V

OUT

2A V ≥ 6V

4.7µF

47µF

33pF

15k

LTC3115-1

3300pF

60.4k

BURST PWM

OFF ON

PWM/SYNC

RUN

249k

GND

PGND

47.5k

4.7µF

(OPTIONAL)

31151 TA01b

3115 TA01a

INPUT VOLTAGE (V)

31151f

12 3 4 5 6 7...40

中文翻译

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与LTC3534相关器件

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LTC3534EDHC#PBF	Linear	获取价格	LTC3534 - 7V, 500mA Synchronous Buck-Boost DC/DC Converter; Package: DFN; Pins: 16; Temper
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LTC3535EDD-PBF	Linear	获取价格	Dual Channel 550mA 1MHz Synchronous Step-Up DC/DC Converter
LTC3535EDD-TRPBF	Linear	获取价格	Dual Channel 550mA 1MHz Synchronous Step-Up DC/DC Converter
LTC3536	ADI	获取价格	1A、低噪声、降压-升压型 DC/DC 转换器
LTC3536EDD#PBF	Linear	获取价格	LTC3536 - 1A Low Noise, Buck-Boost DC/DC Converter; Package: DFN; Pins: 10; Temperature Ra
LTC3536IMSE#PBF	Linear	获取价格	暂无描述
LTC3536IMSE#TRPBF	Linear	获取价格	暂无描述
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