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LTC3563EDC#PBF

更新时间： 2024-01-02 06:08:05
品牌 Logo 应用领域
凌特 - Linear 转换器
页数 文件大小 规格书
16页 272K
描述
LTC3563 - 500mA, Synchronous Step-Down DC/DC Converter with Selectable Output Voltage; Package: DFN; Pins: 6; Temperature Range: -40°C to 85°C

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中文翻译

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LTC3563EDC#PBF 技术参数

是否Rohs认证：符合生命周期：Transferred
零件包装代码：DFN包装说明：HVSON, SOLCC6,.08,20
针数：6Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.21Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：CURRENT-MODE
最大输入电压：5.5 V最小输入电压：2.5 V
标称输入电压：3.6 VJESD-30 代码：S-PDSO-N6
JESD-609代码：e3长度：2 mm
湿度敏感等级：1功能数量：1
端子数量：6最高工作温度：85 °C
最低工作温度：最大输出电流：1.75 A
封装主体材料：PLASTIC/EPOXY封装代码：HVSON
封装等效代码：SOLCC6,.08,20封装形状：SQUARE
封装形式：SMALL OUTLINE, 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
子类别：Switching Regulator or Controllers表面贴装：YES
切换器配置：BUCK最大切换频率：2700 kHz
技术：CMOS温度等级：OTHER
端子面层：Matte Tin (Sn)端子形式：NO LEAD
端子节距：0.5 mm端子位置：DUAL
处于峰值回流温度下的最长时间：30宽度：2 mm
Base Number Matches：1

LTC3563EDC#PBF 数据手册

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LTC3563  
500mA, Synchronous  
Step-Down DC/DC Converter  
with Selectable Output Voltage  
U
DESCRIPTIO  
FEATURES  
The LTC®3563 is a high efficiency monolithic synchro-  
nous buck converter using a constant frequency, current  
■
High Efficiency: Up to 96%  
■
Pin Selectable Output Voltage: 1.28V/1.87V  
Low Ripple (<20mV ) Burst Mode® Operation:  
I = 26µA  
Q
mode architecture. A voltage select input allows the user  
to program the output voltage to 1.28V or 1.87V. Supply  
currentduringoperationisonly26µA,droppingto<1µAin  
shutdown. The2.5Vto5.5Vinputvoltagerangemakesthe  
LTC3563 ideally suited for single Li-Ion battery-powered  
applications.100%dutycycleprovideslowdropoutopera-  
tion, extending battery life in portable systems. Internal  
power switches are optimized to provide high efficiency  
and eliminate the need for an external Schottky diode.  
■
P-P  
■
■
■
■
■
■
■
■
■
Very Low Quiescent Current: Only 26µA  
2.5V to 5.5V Input Voltage Range  
2.25MHz Constant Frequency Operation  
Low Dropout Operation: 100% Duty Cycle  
No Schottky Diode Required  
Internal Soft-Start Limits Inrush Current  
Shutdown Mode Draws <1µA Supply Current  
2% Output Voltage Accuracy  
Current Mode Operation for Excellent Line and Load  
Transient Response  
Overtemperature Protected  
Available in 2mm × 2mm 6-Lead DFN  
U
The switching frequency is internally set at 2.25MHz,  
allowing the use of small surface mount inductors and  
capacitors. The LTC3563 is specifically designed to work  
well with ceramic output capacitors, achieving very low  
output voltage ripple and a small PCB footprint.  
■
■
The LTC3563 is configured for the power saving Burst  
Mode Operation.  
, LTC, LT, LTM and Burst Mode are registered trademarks of Linear Technology  
Corporation. All other trademarks are the property of their respective owners.  
Protected by U.S. Patents, including 5481178, 6580258, 6304066, 6127815, 6498466,  
6611131, 5994885.  
APPLICATIO S  
■
Cellular Telephones  
Wireless and DSL Modems  
Digital Cameras  
MP3 Players  
PDAs and Other Handheld Devices  
■
■
■
■
U
TYPICAL APPLICATIO  
Efficiency and Power Loss vs Output Current  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
1000  
100  
10  
2.2µH  
V
OUT  
V
IN  
1.28V/1.87V  
500mA  
V
SW  
OUT  
IN  
2.7V TO 5.5V  
C
IN  
10µF  
LTC3563  
CER  
RUN  
V
C
OUT  
10µF  
CER  
V
1.28V 1.87V  
SEL  
3563 TA01a  
GND  
1
V
V
= 3.6V  
IN  
OUT  
= 1.87V  
0.1  
1000  
0.1  
1
10  
100  
OUTPUT CURRENT (mA)  
3563 TA01b  
3563f  
1
1234567...16

中文翻译

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