Datasheet > LTC3563_15

LTC3563_15

更新时间： 2024-01-23 16:52:55

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
16页	255K
描述
500mA, Synchronous Step-Down DC/DC Converter with Selectable Output Voltage

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中文翻译

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数据手册

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LTC3563_15 数据手册

LTC3526/LTC3526B

500mA 1MHz Synchronous

Step-Up DC/DC Converters

in 2mm × 2mm DFN

DESCRIPTION

FEATURES

Delivers 3.3V at 100mA from a Single Alkaline/

TheLTC^®3526/LTC3526Baresynchronous,ﬁxedfrequency

step-up DC/DC converters with output disconnect. Syn-

chronous rectiﬁcation enables high efﬁciency in the low

proﬁle 2mm × 2mm DFN package. Battery life in single

AA/AAA powered products is extended further with an

850mV start-up voltage and operation down to 500mV

once started.

NiMH Cell or 3.3V at 200mA from Two Cells

V Start-Up Voltage: 850mV

1.6V 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

internallycompensated,reducingexternalpartscount.The

LTC3526 features automatic Burst Mode operation at light

load conditions, while the LTC3526B features continuous

switching at light loads. Anti-ringing control circuitry also

reduces EMI concerns by damping the inductor in discon-

tinuousmode. Additionalfeaturesincludealowshutdown

current of under 1μA and thermal shutdown.

Integrated Soft-Start

Current Mode Control with Internal Compensation

Automatic Burst Mode^®Operation with 9μA

Quiescent Current (LTC3526)

Low Noise PWM Operation (LTC3526B)

Internal Synchronous Rectiﬁer

Logic Controlled Shutdown (I < 1μA)

Anti-Ringing Control

Low Proﬁle (2mm × 2mm × 0.75mm) DFN Package

The LTC3526/LTC3526B are housed in a 2mm × 2mm ×

APPLICATIONS

0.75mm DFN package.

Medical Instruments

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

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

Flash-Based MP3 Players

Noise Canceling Headphones

Wireless Mice

Bluetooth Headsets

TYPICAL APPLICATION

LTC3526 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

1μF

LTC3526

SHDN

GND

1.78M

POWER LOSS

OFF ON

4.7μF

0.1

0.01

3526 TA01a

0.01

0.1

100

1000

LOAD CURRENT (mA)

3526 TA01b

3526bfb

12 3 4 5 6 7...16

中文翻译

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与LTC3563_15相关器件

型号	品牌	获取价格	描述	数据表
LTC3563EDC	Linear	获取价格	500mA, Synchronous Step-Down DC/DC Converter with Selectable Output Voltage
LTC3563EDC#PBF	Linear	获取价格	LTC3563 - 500mA, Synchronous Step-Down DC/DC Converter with Selectable Output Voltage; Pac
LTC3563EDC#TR	Linear	获取价格	IC 1.75 A SWITCHING REGULATOR, 2700 kHz SWITCHING FREQ-MAX, PDSO6, 2 X 2 MM, PLASTIC, MO-2
LTC3563EDC#TRM	Linear	获取价格	IC 1.75 A SWITCHING REGULATOR, 2700 kHz SWITCHING FREQ-MAX, PDSO6, 2 X 2 MM, PLASTIC, MO-2
LTC3563EDC#TRMPBF	Linear	获取价格	LTC3563 - 500mA, Synchronous Step-Down DC/DC Converter with Selectable Output Voltage; Pac
LTC3563EDC#TRPBF	Linear	获取价格	LTC3563 - 500mA, Synchronous Step-Down DC/DC Converter with Selectable Output Voltage; Pac
LTC3564	Linear	获取价格	2.25MHz, 1.25A Synchronous Step-Down Regulator
LTC3564	ADI	获取价格	2.25MHz、1.25A、同步降压型稳压器
LTC3564EDCB#TRMPBF	Linear	获取价格	LTC3564 - 2.25MHz, 1.25A Synchronous Step-Down Regulator; Package: DFN; Pins: 6; Temperatu
LTC3564EDCB-PBF	Linear	获取价格	2.25MHz, 1.25A Synchronous Step-Down Regulator

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