LTC3526L

更新时间： 2024-10-02 05:43:55

品牌	Logo	应用领域
凌特 - Linear		转换器
页数	文件大小	规格书
16页	266K
描述
550mA 1MHz Synchronous Step-Up DC/DC Converters in 2mm × 2mm DFN

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LTC3526L 数据手册

LTC3526L/LTC3526LB

550mA 1MHz Synchronous

Step-Up DC/DC Converters

in 2mm × 2mm DFN

DESCRIPTION

FEATURES

The LTC^®3526L/LTC3526LB are synchronous, fixed

frequency step-up DC/DC converters with output discon-

nect. Synchronous rectiﬁcation enables high efﬁciency in

the low proﬁle 2mm × 2mm DFN package. Battery life in

single AA/AAA powered products is extended further with

a 680mV start-up voltage and operation down to 500mV

once started.

■

Delivers 3.3V at 100mA from a Single Alkaline/

NiMH Cell or 3.3V at 200mA from Two Cells

■

V Start-Up Voltage: 680mV

■

1.5V to 5.25V V

Range

OUT

Up to 94% Efﬁciency

Output Disconnect

1MHz Fixed Frequency Operation

V > V

Operation

OUT

A switching frequency of 1MHz minimizes solution foot-

print by allowing the use of tiny, low proﬁle inductors

and ceramic capacitors. The current mode PWM design

is internally compensated, reducing external parts count.

The LTC3526L features Burst Mode operation at light load

conditions allowing it to maintain high efﬁciency over a

widerangeofload.TheLTC3526LBfeaturesﬁxedfrequency

operation for low noise applications. Anti-ring circuitry

reduces EMI by damping the inductor in discontinuous

mode. Additional features include a low shutdown current

of under 1μA and thermal shutdown.

Integrated Soft-Start

Current Mode Control with Internal Compensation

Burst Mode^®Operation with 9μA I (LTC3526L)

Low Noise PWM Operation (LT3526LB)

Internal Synchronous Rectiﬁer

Logic Controlled Shutdown (I < 1μA)

Anti-Ring Control

Low Proﬁle (2mm × 2mm × 0.75mm)

DFN-6 Package

APPLICATIONS

The LTC3526L/LTC3526LB are housed in a 2mm × 2mm

× 0.75mm DFN package.

■

Medical Instruments

■

Noise Canceling Headphones

■

Wireless Mice

Bluetooth Headsets

, LT, LTC, LTM and Burst Mode are registered trademarks of Linear Technology

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

■

TYPICAL APPLICATION

Efﬁciency and Power Loss vs Load Current

100

1000

100

= 2.4V

4.7μH

EFFICIENCY

OUT

3.3V

OUT

1.6V TO 3.2V

200mA

4.7μF

LTC3526L

SHDN FB

GND

1.78M

POWER LOSS

4.7μF

OFF ON

3526 TA01a

0.1

0.01

0.1

100

1000

LOAD CURRENT (mA)

3526 TA01b

3526lfb

12 3 4 5 6 7...16

中文翻译

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与LTC3526L相关器件

型号	品牌	获取价格	描述	数据表
LTC3526L_15	Linear	获取价格	550mA 1MHz Synchronous Step-Up DC/DC Converters
LTC3526L-2	Linear	获取价格	400mA Step-Up DC/DC Converter with Maximum Power Point Control and 250mV Start-Up
LTC3526L-2	ADI	获取价格	采用 2mm x 2mm DFN 封装的 550mA 2MHz 同步升压型 DC/DC 转
LTC3526L-2_15	Linear	获取价格	550mA 2MHz Synchronous Step-Up DC/DC Converters
LTC3526LB	Linear	获取价格	550mA 1MHz Synchronous Step-Up DC/DC Converte
LTC3526LB_15	Linear	获取价格	550mA 1MHz Synchronous Step-Up DC/DC Converters
LTC3526LB-2	Linear	获取价格	500mA 1MHz Synchronous Step-Up DC/DC Converters in 2mm X 2mm DFN
LTC3526LB-2_15	Linear	获取价格	550mA 2MHz Synchronous Step-Up DC/DC Converters
LTC3526LBEDC-2#PBF	Linear	获取价格	LTC3526LBEDC-2#PBF
LTC3526LBEDC-2#TRPBF	Linear	获取价格	LTC3526L-2 - 550mA 2MHz Synchronous Step-Up DC/DC Converters in 2mm x 2mm DFN; Package: DF

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