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LTC3553EUD-2#PBF PDF预览

LTC3553EUD-2#PBF

更新时间： 2024-11-11 20:10:55
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
36页 422K
描述
LTC3553-2 - Micropower USB Power Manager with Li-Ion Charger, Always-On LDO and Buck Regulator; Package: QFN; Pins: 20; Temperature Range: -40°C to 85°C

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中文翻译

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LTC3553EUD-2#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, LCC20,.11SQ,16
针数：20Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.7可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：S-PQCC-N20
JESD-609代码：e3长度：3 mm
湿度敏感等级：1信道数量：1
功能数量：1端子数量：20
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：HVQCCN
封装等效代码：LCC20,.11SQ,16封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：NOT SPECIFIED
电源：5 V认证状态：Not Qualified
座面最大高度：0.8 mm子类别：Power Management Circuits
最大供电电流 (Isup)：500 mA最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：4.35 V标称供电电压 (Vsup)：5 V
表面贴装：YES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：0.4 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3 mmBase Number Matches：1

LTC3553EUD-2#PBF 数据手册

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LTC3553-2  
Micropower USB Power  
Manager with Li-Ion Charger,  
Always-On LDO and Buck Regulator  
DESCRIPTION  
FEATURES  
The LTC®3553-2 is a micropower, highly integrated  
n
12μA Standby Mode Quiescent Current (All Outputs On)  
Seamless Transition Between Input Power Sources:  
Li-Ion/Polymer Battery and USB  
240mΩ Internal Ideal Diode Provides Low Loss  
PowerPath™  
High Efficiency 200mA Buck Regulator  
Always-On 150mA Low Dropout (LDO) Linear  
Regulator  
Pushbutton On/Off Control With System Reset  
Full Featured Li-Ion/Polymer Battery Charger  
Programmable Charge Current With Thermal Limiting  
Instant-On Operation With Discharged Battery  
3mm × 3mm × 0.75mm 20-Pin QFN Package  
n
power management and battery charger IC for single-cell  
Li-Ion/Polymer battery applications. It includes a  
PowerPath manager with automatic load prioritization,  
a battery charger, an ideal diode and numerous internal  
protection features. Designed specifically for USB applica-  
tions, the LTC3553-2 power manager automatically limits  
input current to a maximum of either 100mA or 500mA.  
Battery charge current is automatically reduced such that  
the sum of the load current and the charge current does  
not exceed the selected input current limit. The LTC3553-2  
also includes a synchronous buck regulator, an always-on  
low dropout linear regulator (LDO), and a pushbutton  
controller. With all supplies enabled in standby mode, the  
quiescent current drawn from the battery is only 12μA.  
The LTC3553-2 is available in a 3mm × 3mm × 0.75mm  
20-pin QFN package.  
n
n
n
n
n
n
n
n
APPLICATIONS  
n
USB-Based Handheld Products  
n
Portable Li-Ion/Polymer Based Electronic Devices  
L, LT, LTC, LTM, Linear Technology, the Linear logo, and Burst Mode are registered trademarks  
and PowerPath, Hot Swap, 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, 6700364, 5481178, 6304066, 6570372, 6580258, 7511390 and other  
patents pending.  
n
Wearable Electronics  
Low Power Medical Devices  
n
TYPICAL APPLICATION  
4.35V TO 5.5V  
SYSTEM  
LOAD  
Battery Drain Current  
V
V
OUT  
BUS  
USB INPUT  
vs Temperature  
10ꢀF  
10ꢀF  
100k  
LTC3553-2  
18  
V
= 3.8V  
CHRG  
NTC  
BAT  
STBY = 3.8V  
16  
14  
12  
10  
8
BAT  
PROG  
REGULATORS LOAD = 0mA  
100k  
T
+
Li-Ion  
BATTERY  
1.87k  
BUCK AND LDO ON  
ONLY LDO ON  
BVIN  
2.2ꢀF  
V
INLDO  
PGOOD  
HPWR  
6
3.3V  
LDO  
150mA  
4
2.05M  
4.7ꢀF  
SUSP  
DIGITAL  
2
HARD RESET  
CONTROL  
LDO_FB  
SW  
BUCK_ON  
STBY  
0
649k  
–50 –30 –10 10 30 50 70 90 110 130  
TEMPERATURE (°C)  
PBSTAT  
10ꢀH  
10pF  
1.2V  
200mA  
35532 TA01b  
332k  
649k  
10ꢀF  
ON  
BUCK_FB  
ON/OFF  
35532 TA01a  
35532f  
1
1234567...36

中文翻译

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