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LINEAR TECHNOLOGY  LTC3555EUFD#PBF  芯片, USB电源管理器, 28QFN

LINEAR TECHNOLOGY LTC3555EUFD#PBF
Technical Data Sheet (615.47KB) EN 查看所有技术文档

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产品概述

The LTC3555EUFD#PBF is a highly integrated USB compatible Power Management and Battery Charger IC for Li-Ion/Polymer battery applications. They include a high efficiency current limited switching PowerPath manager with automatic load prioritization, a battery charger, an ideal diode and three general purpose synchronous step-down switching regulators. The LTC3555 family limits input current to either 100 or 500mA for USB applications or 1A for adapter-powered applications. Unlike linear chargers, the LTC3555 family's switching architecture transmits nearly all of the power available from the USB port to the load with minimal loss and heat which eases thermal constraints in small spaces. Two of the three general purpose switching regulators can provide up to 400mA and the third can deliver 1A. The entire product can be controlled via I2C or simple I/O. The LTC3555-1/LTC3555-3 versions offer "instant-on" power delivery to the portable product even with a very low battery voltage.
  • High efficiency switching PowerPath™ controller with Bat-Track™ adaptive output control
  • Full featured Li-ion/polymer battery charger
  • 1.5A Maximum charge current
  • Internal 180mR ideal diode + external ideal diode controller powers load in battery mode
  • Low no-load quiescent current when powered from BAT (<32µA)
  • Triple high efficiency step-down DC/DCs (1A/400mA/400mA IOUT)
  • All regulators operate at 2.25MHz
  • Dynamic voltage scaling on two outputs
  • I2C or independent enable, VOUT controls

产品信息

电源电压:
5.5V
降压直流/直流转换器数:
3
低压降稳压器数:
1
整流输出数:
4
数字集成电路封装:
QFN
针脚数:
28引脚
工作温度最小值:
-40°C
工作温度最高值:
85°C
封装:
每个
产品范围:
-
汽车质量标准:
-
MSL:
MSL 1 -无限制
SVHC(高度关注物质):
No SVHC (17-Dec-2015)

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应用

  • 医用;
  • 测试与测量

法律与环境

潮湿敏感级别:
MSL 1 -无限制
原产地:
Malaysia

进行最后一道重要生产流程所在的国家

RoHS 合规:
税则号:
85423990
重量(千克):
.0002

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