Datasheet > LTC3576

LTC3576

更新时间： 2024-11-01 05:43:55

品牌	Logo	应用领域
凌特 - Linear		开关
页数	文件大小	规格书
48页	582K
描述
Switching Power Manager with USB On-the-Go + Triple Step-Down DC/DCs

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中文翻译

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数据手册

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LTC3576 数据手册

LTC3576/LTC3576-1

Switching Power Manager

with USB On-the-Go + Triple

Step-Down DC/DCs

FEATURES

DESCRIPTION

The LTC^®3576/LTC3576-1 are highly integrated power

Bidirectional Switching Regulator with Bat-

Track™ Adaptive Output Control Provides Efﬁcient management and battery charger ICs for Li-Ion/Polymer

Charging and a 5V Output for USB On-The-Go

Bat-Track Control of External High Voltage Step-

Down Switching Regulator

battery applications. They each include a high efﬁciency,

bidirectional switching PowerPath™ manager with auto-

maticloadprioritization,abatterycharger,anidealdiode,a

controller for an external high voltage switching regulator

andthreegeneralpurposestep-downswitchingregulators

Overvoltage Protection Guards Against Damage

“Instant-On” Operation with Discharged Battery

Triple Step-Down Switching Regulators with I C

with I C adjustable output voltages. The internal switch-

Adjustable Outputs (1A/400mA/400mA I

)

ing regulators automatically limit input current for USB

compatibility and can also generate 5V at 500mA for USB

on-the-go applications when powered from the battery.

BoththeUSBandexternalswitchingregulatorpowerpaths

featureBat-Trackoptimizedchargingtoprovidemaximum

180mΩ Internal Ideal Diode + External^OI^Ud^Teal Diode

Controller Powers the Load in Battery Mode

Li-Ion/Polymer Battery Charger (1.5A Max I

Battery Float Voltage: 4.2V (LTC3576), 4.1V (LTC3576-1)

)

CHG

Compact (4mm × 6mm × 0.75mm) 38-pin QFN Package power to the application from supplies as high as 38V. An

overvoltage circuit protects the LTC3576/LTC3576-1 from

APPLICATIONS

damageduetohighvoltageontheV

orWALLpinswith

BUS

justtwoexternalcomponents.TheLTC3576/LTC3576-1are

available in a low proﬁle 38-pin (4mm × 6mm × 0.75mm)

QFN package.

HDD-Based Media Players

GPS, PDAs, Digital Cameras, Smart Phones

Automotive Compatible Portable Electronics

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

and PowerPath are trademarks of Linear Technology Corporation. All other trademarks are the

property of their respective owners. Protected by U.S. Patents, including 6522118, 6404251.

TYPICAL APPLICATION

High Efﬁciency PowerPath Manager with Overvoltage Protection

and Triple Step-Down Regulator

AUTOMOTIVE

LT3653

FIREWIRE, ETC.

PowerPath Switching Regulator Efﬁciency

to System Load (P_VOUT/P_VBUS

)

USB OR

5V AC

ADAPTER

OVERVOLTAGE

PROTECTION

EXTERNAL HIGH VOLTAGE

BUCK CONTROLLER

100

TO OTHER

LOADS

USB COMPLIANT

BIDIRECTIONAL

SWITCHING

BAT = 4.2V

BAT = 3.3V

REGULATOR

CC/CV

OPTIONAL

BATTERY

CHARGER

CHARGE

LTC3576/LTC3576-1

Li-Ion

= 5V

BUS

= 0mA

BAT

10x MODE

3.3V/20mA

RTC/LOW

ALWAYS ON LDO

POWER LOGIC

100

1000

0.8V TO 3.6V/400mA

LOAD CURRENT (mA)

MEMORY

I/O

TRIPLE

HIGH EFFICIENCY

STEP-DOWN

SWITCHING

REGULATORS

3576 TA01b

ENABLE

CONTROLS

0.8V TO 3.6V/1A

CORE

μPROCESSOR

RST

I C

I C PORT

3576 TA01

3576f

12 3 4 5 6 7...48

中文翻译

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与LTC3576相关器件

型号	品牌	获取价格	描述	数据表
LTC3576_15	Linear	获取价格	Switching Power Manager with USB On-the-Go Triple Step-Down DC/DCs
LTC3576-1	Linear	获取价格	Switching Power Manager with USB On-the-Go + Triple Step-Down DC/DCs
LTC3576-1_15	Linear	获取价格	Switching Power Manager with USB On-the-Go Triple Step-Down DC/DCs
LTC3576EUFE#TRPBF	Linear	获取价格	LTC3576/LTC3576-1 - Switching Power Manager with USB On-the-Go + Triple Step-Down DC/DCs;
LTC3576EUFE-1#PBF	Linear	获取价格	LTC3576/LTC3576-1 - Switching Power Manager with USB On-the-Go + Triple Step-Down DC/DCs;
LTC3576EUFE-1-PBF	Linear	获取价格	Switching Power Manager with USB On-the-Go + Triple Step-Down DC/DCs
LTC3576EUFE-1-TRPBF	Linear	获取价格	Switching Power Manager with USB On-the-Go + Triple Step-Down DC/DCs
LTC3576EUFE-PBF	Linear	获取价格	Switching Power Manager with USB On-the-Go + Triple Step-Down DC/DCs
LTC3576EUFE-TRPBF	Linear	获取价格	Switching Power Manager with USB On-the-Go + Triple Step-Down DC/DCs
LTC3577	Linear	获取价格	Highly Integrated 6-Channel Portable PMIC

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