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TC1303B-AL0EUN

更新时间： 2024-11-08 05:29:19
品牌 Logo 应用领域
美国微芯 - MICROCHIP 稳压器
页数 文件大小 规格书
30页 581K
描述
500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output

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TC1303B-AL0EUN 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：TSSOP
包装说明：TSSOP,针数：10
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.04
其他特性：AUTOMATIC PWM TO PFM MODE模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：5.5 V最小输入电压：2.7 V
标称输入电压：3.6 VJESD-30 代码：S-PDSO-G10
JESD-609代码：e3长度：3 mm
湿度敏感等级：1功能数量：1
端子数量：10最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：0.5 A
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装形状：SQUARE封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.1 mm表面贴装：YES
切换器配置：BUCK最大切换频率：2400 kHz
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：GULL WING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：40
宽度：3 mmBase Number Matches：1

TC1303B-AL0EUN 数据手册

 浏览型号TC1303B-AL0EUN的Datasheet PDF文件第2页浏览型号TC1303B-AL0EUN的Datasheet PDF文件第3页浏览型号TC1303B-AL0EUN的Datasheet PDF文件第4页浏览型号TC1303B-AL0EUN的Datasheet PDF文件第5页浏览型号TC1303B-AL0EUN的Datasheet PDF文件第6页浏览型号TC1303B-AL0EUN的Datasheet PDF文件第7页 
TC1303B  
500 mA Synchronous Buck Regulator,  
+ 300 mA LDO with Power-Good Output  
Features  
Description  
• Dual-Output Regulator (500 mA Buck Regulator  
and 300 mA Low-Dropout Regulator)  
The TC1303B combines a 500 mA synchronous buck  
regulator and 300 mA Low-Dropout Regulator (LDO)  
with a power-good monitor to provide a highly  
integrated solution for devices that require multiple  
supply voltages. The unique combination of an  
integrated buck switching regulator and low-dropout  
linear regulator provides the lowest system cost for  
dual-output voltage applications that require one lower  
processor core voltage and one higher bias voltage.  
• Power-Good Output with 300 ms Delay  
• Total Device Quiescent Current = 65 µA, Typ.  
• Independent Shutdown for Buck and LDO  
Outputs  
• Both Outputs Internally Compensated  
• Synchronous Buck Regulator:  
- Over 90% Typical Efficiency  
The 500 mA synchronous buck regulator switches at a  
fixed frequency of 2.0 MHz when the load is heavy  
providing a low noise, small-size solution. When the  
load on the buck output is reduced to light levels, it  
changes operation to a Pulse Frequency Modulation  
(PFM) mode to minimize quiescent current draw from  
the battery. No intervention is necessary for smooth  
transition from one mode to another.  
- 2.0 MHz Fixed Frequency PWM  
(Heavy Load)  
- Low Output Noise  
- Automatic PWM to PFM mode transition  
- Adjustable (0.8V to 4.5V) and Standard Fixed  
Output Voltages (0.8V, 1.2V, 1.5V, 1.8V, 2.5V,  
3.3V)  
The LDO provides a 300 mA auxiliary output that  
requires a single 1 µF ceramic output capacitor,  
minimizing board area and cost. The typical dropout  
voltage for the LDO output is 137 mV for a 200 mA  
load.  
• Low-Dropout Regulator:  
- Low-Dropout Voltage = 137 mV Typ. @  
200 mA  
- Standard Fixed Output Voltages  
(1.5V, 1.8V, 2.5V, 3.3V)  
For the TC1303B, the power-good output logic level is  
based on the regulation of the LDO output only. The  
buck regulator can be turned on and off without affecting  
the power-good signal.  
• Power-Good Function:  
- Monitors LDO Output Function (TC1303B)  
- 300 ms Delay Used for Processor Reset  
• Small 10-pin 3X3 DFN or MSOP Package  
Options  
The TC1303B is available in either the 10-pin DFN or  
MSOP package.  
• Operating Junction Temperature Range:  
- -40°C to +125°C  
Additional protection features include: UVLO,  
overtemperature and overcurrent protection on both  
outputs.  
• Undervoltage Lockout (UVLO)  
• Output Short Circuit Protection  
• Overtemperature Protection  
For a complete listing of TC1303B standard parts, con-  
sult your Microchip representative.  
Applications  
Package Type  
• Cellular Phones  
10-Lead DFN  
10-Lead MSOP  
• Portable Computers  
• USB Powered Devices  
• Handheld Medical Instruments  
• Organizers and PDAs  
P
10  
9
SHDN2  
1
2
3
4
5
P
GND  
SHDN2  
1
2
3
4
5
10  
9
GND  
V
L
V
L
IN2  
X
IN2  
X
V
V
8
IN1  
V
OUT2  
OUT2  
V
IN1  
8
7
SHDN1  
PG  
7
SHDN1  
PG  
V
/V  
A
6
FB1 OUT1  
GND  
A
6
GND  
V
/V  
FB1 OUT1  
© 2005 Microchip Technology Inc.  
DS21949A-page 1  
1234567...30

中文翻译

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