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LTC3556EUFD#PBF PDF预览

LTC3556EUFD#PBF

更新时间： 2024-01-14 05:15:05
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
38页 617K
描述
LTC3556 - High Efficiency USB Power Manager with Dual Buck and Buck-Boost DC/DCs; Package: QFN; Pins: 28; Temperature Range: -40°C to 85°C

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中文翻译

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LTC3556EUFD#PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：QFN包装说明：HVQCCN,
针数：28Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：3.11其他特性：ALSO OPERATES IN CURRENT MODE
模拟集成电路 - 其他类型：BATTERY CHARGE CONTROLLER控制模式：VOLTAGE-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：5.5 V
最小输入电压：4.35 V标称输入电压：5 V
JESD-30 代码：R-PQCC-N28JESD-609代码：e3
长度：5 mm湿度敏感等级：1
功能数量：1端子数量：28
最高工作温度：85 °C最低工作温度：
最大输出电流：3 A封装主体材料：PLASTIC/EPOXY
封装代码：HVQCCN封装形状：RECTANGULAR
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：0.8 mm
表面贴装：YES切换器配置：BUCK-BOOST
最大切换频率：2700 kHz技术：CMOS
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：NO LEAD端子节距：0.5 mm
端子位置：QUAD处于峰值回流温度下的最长时间：30
宽度：4 mmBase Number Matches：1

LTC3556EUFD#PBF 数据手册

 浏览型号LTC3556EUFD#PBF的Datasheet PDF文件第2页浏览型号LTC3556EUFD#PBF的Datasheet PDF文件第3页浏览型号LTC3556EUFD#PBF的Datasheet PDF文件第4页浏览型号LTC3556EUFD#PBF的Datasheet PDF文件第5页浏览型号LTC3556EUFD#PBF的Datasheet PDF文件第6页浏览型号LTC3556EUFD#PBF的Datasheet PDF文件第7页 
LTC3556  
High Efficiency USB Power  
Manager with Dual Buck  
and Buck-Boost DC/DCs  
FeaTures  
POWER MANAGER  
DescripTion  
The LTC®3556 is a highly integrated power management  
and battery charger IC for Li-Ion/Polymer battery applica-  
tions.Itincludesahighefficiencycurrentlimitedswitching  
PowerPath manager with automatic load prioritization, a  
battery charger, an ideal diode, and three synchronous  
switching regulators (two bucks and one buck-boost).  
DesignedspecificallyforUSBapplications, theLTC3556’s  
switching power manager automatically limits input cur-  
rent to a maximum of either 100mA or 500mA for USB  
applications or 1A for adapter-powered applications.  
High Efficiency Switching PowerPathTM Controller  
n
with Bat-TrackTM Adaptive Output Control  
n
Programmable USB or Wall Current Limit  
(100mA/500mA/1A)  
n
Full Featured Li-Ion/Polymer Battery Charger  
n
Instant-On Operation with a Discharged Battery  
n
1.5A Maximum Charge Current  
n
Internal 180mΩ Ideal Diode Plus External Ideal Diode  
Controller Powers Load in Battery Mode  
n
Low No-Load I when Powered from BAT (<30µA)  
Q
The LTC3556’s switching input stage transmits nearly all  
of the 2.5W available from the USB port to the system load  
with minimal power wasted as heat. This feature allows  
the LTC3556 to provide more power to the application and  
eases the constraint ofthermal budgeting in small spaces.  
The two buck regulators can provide up to 400mA each  
and the buck-boost can deliver 1A.  
DC/DCs  
n
n
n
n
n
n
n
Dual High Efficiency Buck DC/DCs (400mA/400mA I  
)
OUT  
High Efficiency Buck-Boost DC/DC (1A I  
All Regulators Operate at 2.25MHz  
)
OUT  
Dynamic Voltage Scaling on Two Buck Outputs  
2
I C Control of Enables, Mode, Two V  
Settings  
OUT  
ENALL Pin with Power-Up Sequence Control  
Low No-Load Quiescent Current: 20µA Each  
The LTC3556 is available in the low profile 28-pin (4mm  
× 5mm × 0.75mm) QFN surface mount package.  
L, LT, LTC, LTM, Linear Technology, Burst Mode and the Linear logo are registered trademarks  
and PowerPath and Bat-Track are trademarks of Linear Technology Corporation. All other  
trademarks are the property of their respective owners. Protected by U.S. Patents including  
6522118 and 6404251.  
applicaTions  
n
HDD-Based MP3 Players, PDAs, GPS, PMPs  
n
Other USB-Based Handheld Products  
Typical applicaTion  
Battery Charge Current  
vs Battery Voltage  
High Efficiency PowerPath Manager, Dual Buck, Buck-Boost and LDO  
USB/WALL  
4.5V TO 5.5V  
TO OTHER  
LOADS  
USB COMPLIANT  
STEP-DOWN  
REGULATOR  
700  
600  
500  
400  
300  
200  
100  
0
BATTERY CHARGE CURRENT  
EXTRA CURRENT  
FOR FASTER CHARGING  
CC/CV  
BATTERY  
CHARGER  
0V  
OPTIONAL  
Li-Ion  
500mA USB CURRENT LIMIT  
CHARGE  
+
T
LTC3556  
3.3V/25mA  
RTC/LOW  
POWER LOGIC  
ALWAYS ON LDO  
1
V
= 5V  
BUS  
5X MODE  
0.8V TO 3.6V/400mA  
0.8V TO 3.6V/400mA  
MEMORY  
CORE  
µP  
BATTERY CHARGER PROGRAMMED FOR 1A  
DUAL HIGH EFFICIENCY  
ENALL  
BUCKS  
2
3
2.8  
3.2 3.4 3.6  
3.8  
4
4.2  
3
BATTERY VOLTAGE (V)  
HIGH EFFICIENCY  
BUCK-BOOST  
SEQ  
2.5V to 3.3V/1A  
PGOODALL  
3556 TA01b  
HDD/IO  
3
2
2
I C  
I C PORT  
3556 TA01  
3556fa  
1
For more information www.linear.com/LTC3556  
1234567...38

中文翻译

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