Datasheet > LTC3525-5

LTC3525-5

更新时间： 2024-01-24 02:47:30

品牌	Logo	应用领域
凌特 - Linear		转换器
页数	文件大小	规格书
12页	270K
描述
400mA Micropower Synchronous Step-Up DC/DC Converter with Output Disconnect

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中文翻译

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LTC3525-5 数据手册

LTC3525-3/

LTC3525-3.3/LTC3525-5

400mA Micropower

Synchronous Step-Up DC/DC

Converter with Output Disconnect

DESCRIPTIO

FEATURES

The LTC^®3525-3/LTC3525-3.3/LTC3525-5 are high ef-

ﬁciency synchronous step-up DC/DC converters with

output disconnect that can start up with an input as low

as 1V. They offer a compact, high efﬁciency alternative to

charge pumps in single cell or dual cell alkaline or Li-ion

applications. Only three small external components are

required. The LTC3525 is offered in ﬁxed output voltages

of 3V, 3.3V or 5V.

■

Up to 95% Efﬁciency

■

Output Disconnect and Inrush Current Limit

■

Fixed Output Voltages of 3V, 3.3V or 5V

■

Delivers 65mA at 3V from a 1V Input

■

Delivers 60mA at 3.3V from a 1V Input,

or 140mA at 3.3V from a 1.8V Input

■

Delivers 175mA at 5V from a 3V Input

Burst Mode^®Operation: I = 7µA

■

Only Three External Components

The device includes a 0.5Ω N-channel MOSFET switch

and a 0.8Ω P-channel synchronous rectiﬁer. Peak switch

current ranges from 150mA to 400mA, depending on

load, providing enhanced efﬁciency. Quiescent current

is an ultralow 7µA, maximizing battery life in portable

applications.

■

V > V

Operation

OUT

■

<1µA Shutdown Current

Antiringing Control

Short-Circuit and Overtemperature Protection

Very Low Proﬁle of 1mm

Tiny 6-Pin SC70 Package

Other features include <1µA shutdown current, anti-

ringing control and thermal shutdown. The LTC3525 is

available in a tiny 6-pin SC70 package.

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

Burst Mode is a registered trademark of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

Patents Pending

APPLICATIO S

■

MP3 Players

■

Portable Instruments

■

Glucose Meters

Digital Cameras

■

TYPICAL APPLICATIO

LTC3525-3.3 Efﬁciency and Power

Loss vs Load Current

L1*

10µH

100

LTC3525-3.3

EFFICIENCY

OUT

1V to 1.6V

3.3V

SHDN

GND

OFF ON

60mA

POWER LOSS

GND

1µF

10µF

0.1

= 3V

= 2.4V

= 1.2V

3525 TA01

0.01

0.1

100

1000

*MURATA LQH32CN100K53

LOAD (mA)

LT3525 • TA02

3525fa

12 3 4 5 6 7...12

中文翻译

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与LTC3525-5相关器件

型号	品牌	获取价格	描述	数据表
LTC3525-5_15	Linear	获取价格	400mA Micropower Synchronous Step-Up DC/DC Converter with Output Disconnect
LTC3525D-3.3	Linear	获取价格	400mA Micropower Synchronous Step-Up DC/DC Converter with Pass Through Mode
LTC3525D-3.3	ADI	获取价格	具穿透模式的 400mA 微功率同步升压型 DC/DC 转换器
LTC3525DESC6-3.3	Linear	获取价格	400mA Micropower Synchronous Step-Up DC/DC Converter with Pass Through Mode
LTC3525DESC6-3.3#TRM	Linear	获取价格	LTC3525D-3.3 - 400mA Micropower Synchronous Step-Up DC/DC Converter with Pass Through Mode
LTC3525DESC6-3.3#TRPBF	Linear	获取价格	LTC3525D-3.3 - 400mA Micropower Synchronous Step-Up DC/DC Converter with Pass Through Mode
LTC3525ESC6-3	Linear	获取价格	400mA Micropower Synchronous Step-Up DC/DC Converter with Output Disconnect
LTC3525ESC6-3#PBF	Linear	获取价格	IC 0.45 A SWITCHING REGULATOR, PDSO6, LEAD FREE, PLASTIC, MO-203AB, EIAJ, SC-70, 6 PIN, Sw
LTC3525ESC6-3#TR	Linear	获取价格	LTC3525 - 400mA Micropower Synchronous Step-Up DC/DC Converter with Output Disconnect; Pac
LTC3525ESC6-3#TRM	Linear	获取价格	LTC3525 - 400mA Micropower Synchronous Step-Up DC/DC Converter with Output Disconnect; Pac

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