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| 型号： | LTC3559EUD |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 1.05 A BATTERY CHARGE CONTROLLER, 2590 kHz SWITCHING FREQ-MAX, PQCC16 |
| 封装： | 3 X 3 MM, PLASTIC, MO-220WEED-2, QFN-16 |
| 文件页数： | 1/24页 |
| 文件大小： | 302K |
| 代理商： | LTC3559EUD |
LTC3559
1
3559f
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Linear USB Battery Charger
with Dual Buck Regulators
The LTC
3559 is a USB battery charger with dual high ef-
ciency buck regulators. The part is ideally suited to power
single cell Li-Ion/Polymer based handheld applications
needing multiple supply rails.
Battery charge current is programmed via the PROG pin
and the HPWR pin, with capability up to 950mA at the BAT
pin. The battery charger has an NTC input for temperature
qualied charging. The
CHRG pin allows battery status to
be monitored continuously during the charging process.
An internal timer controls charger termination.
Each monolithic synchronous buck regulator provides up
to 400mA of output current while operating at efciencies
greater than 90% over the entire Li-Ion/Polymer range.
A MODE pin provides the exibility to place both buck
regulators in a power saving Burst Mode operation or a
low noise pulse skip mode.
The LTC3559 is offered in a low prole thermally enhanced
16-lead (3mm
× 3mm) QFN package.
USB Charger Plus Dual Buck Regulators
Battery Charger
■ Standalone USB Charger
■ Up to 950mA Charge Current Programmable via
Single Resistor
■ HPWR Input Selects 20% or 100% of Programmed
Charge Current
■ NTC Input for Temperature Qualied Charging
■ Internal Timer Termination
■ Bad Battery Detection
■
CHRG indicates C/10 or Timeout
Buck Regulators
■ 400mA Output Current
■ 2.25MHz Constant Frequency Operation
■ Zero Current in Shutdown
■ Low Noise Pulse Skip Operation or Power Saving
Burst Mode Operation
■ Low No Load Quiescent Current: 35
μA
■ Available in a Low Prole Thermally Enhanced
16-Lead 3mm
× 3mm QFN Package
■ SD/Flash-Based MP3 Players
■ Low Power Handheld Applications
VCC
NTC
CHRG
PROG
SUSP
HPWR
EN1
4.7
μH
2.2
μF
10
μF
309k
655k
649k
324k
10
μF
22pF
UP TO 500mA
LTC3559
GND
EXPOSED
PAD
1
μF
4.7
μH
1.74k
EN2
MODE
BAT
USB (4.3V TO 5.5V)
OR AC ADAPTOR
DIGITAL
CONTROL
PVIN
SW1
FB1
SW2
FB2
2.5V
400mA
SINGLE
Li-lon CELL
(2.7V TO 4.2V)
1.2V
400mA
3559 TA01
+
, LT, LTC, LTM and Burst Mode are registered trademarks of Linear Technology
Corporation. All other trademarks are the property of their respective owners.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3559EUD#PBF | 功能描述:IC USB CHARGER 16-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 其它有关文件:STC3100 View All Specifications 特色产品:STC3100 - Battery Monitor IC 标准包装:4,000 系列:- 功能:燃料，电量检测计/监控器 电池化学:锂离子（Li-Ion） 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MiniSO 包装:带卷 (TR) 其它名称:497-10526-2 |
| LTC3559EUD#PBF | 制造商:Linear Technology 功能描述:IC BATT CHARGER W/BUCK REG 16QFN 制造商:Linear Technology 功能描述:IC, BATT CHARGER, W/BUCK REG, 16QFN |
| LTC3559EUD#TRPBF | 功能描述:IC USB CHARGER 16-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC3559EUD-1#PBF | 功能描述:IC USB BATTERY CHARGER 16-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC3559EUD-1#TRPBF | 功能描述:IC USB BATTERY CHARGER 16-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
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