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TC126503ECT

更新时间： 2024-11-21 22:34:31
品牌 Logo 应用领域
美国微芯 - MICROCHIP 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
12页 461K
描述
PFM Step-Up DC/DC Regulators

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中文翻译

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TC126503ECT 技术参数

生命周期：Obsolete零件包装代码：SOT-23A
包装说明：SOT-23A, 5 PIN针数：5
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.7
Is Samacsys：N模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：VOLTAGE-MODE控制技术：PULSE FREQUENCY MODULATION
最大输入电压：10 V最小输入电压：0.7 V
标称输入电压：3 VJESD-30 代码：R-PDSO-G5
长度：2.9 mm功能数量：1
端子数量：5最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：0.4 A
封装主体材料：PLASTIC/EPOXY封装代码：LSSOP
封装等效代码：TSOP5/6,.11,37封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, LOW PROFILE, SHRINK PITCH认证状态：Not Qualified
座面最大高度：1.45 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：BOOST
最大切换频率：115 kHz温度等级：INDUSTRIAL
端子形式：GULL WING端子节距：0.95 mm
端子位置：DUAL宽度：1.6 mm
Base Number Matches：1

TC126503ECT 数据手册

 浏览型号TC126503ECT的Datasheet PDF文件第2页浏览型号TC126503ECT的Datasheet PDF文件第3页浏览型号TC126503ECT的Datasheet PDF文件第4页浏览型号TC126503ECT的Datasheet PDF文件第5页浏览型号TC126503ECT的Datasheet PDF文件第6页浏览型号TC126503ECT的Datasheet PDF文件第7页 
TC125/TC126  
PFM Step-Up DC/DC Regulators  
Features  
General Description  
• Assured Start-up at 0.9V  
The TC125/126 step-up (Boost) switching regulators  
furnish output currents to  
a maximum of 80mA  
• PFM (100kHz Max Operating Frequency)  
• 40µA Maximum Supply Current  
(V = 2V, V = 3V) with typical efficiencies above  
IN  
OUT  
80%. These devices employ pulse frequency modula-  
tion (PFM) for minimum supply current at low loads.  
They are ideal for battery-operated applications  
powered from one or more cells. Maximum supply  
current is less than 70µA at full output load, and less  
(V  
= 3V @ 30mA)  
OUT  
• 0.5µA Shutdown Mode (TC125)  
• Voltage Sense Input (TC126)  
• Requires Only Three External Components  
• 80mA Maximum Output Current  
• Small Package: 5-Pin SOT-23A  
than 5µA in standby (V  
= 3V). Both devices require  
OUT  
only an external inductor, diode, and capacitor to  
implement a complete DC/DC regulator.  
Applications  
The TC126 has separate output voltage sensing and  
chip power inputs for greater application flexibility. The  
TC125 combines the output voltage sensing and chip  
power inputs onto a single package pin, but adds a  
power-saving shutdown mode that suspends regulator  
operation and reduces supply current to less than  
0.5µA when the shutdown control input (SHDN) is low.  
• Palmtops/PDAs  
• Battery-Operated Systems  
• Cameras  
• Portable Communicators  
Device Selection Table  
The TC125/TC126 are available in a small 5-Pin  
SOT-23A package, occupy minimum board space and  
use small external components. The TC125 accepts  
input voltages from 2V to 10V. The TC126 accepts  
input voltages from 2.2V to 10V. Both the TC125 and  
TC126 have a start-up voltage of 0.9V at light load.  
Output  
Voltage  
(V)*  
Operating  
Temp.  
Range  
Part  
Number  
Package  
TC125501ECT  
TC125331ECT  
TC125301ECT  
TC126503ECT  
TC126333ECT  
TC126303ECT  
5.0  
3.3  
3.0  
5.0  
3.3  
3.0  
5-Pin SOT-23A -40°C to +85°C  
5-Pin SOT-23A -40°C to +85°C  
5-Pin SOT-23A -40°C to +85°C  
5-Pin SOT-23A -40°C to +85°C  
5-Pin SOT-23A -40°C to +85°C  
5-Pin SOT-23A -40°C to +85°C  
Typical Application  
Sumida  
100µH CD54  
V
OUT  
MA735  
5V @80mA  
V
IN  
+
47µF/16V  
Tantalum  
*Other output voltages are available. Please contact  
Microchip Technology Inc. for details.  
5
4
–
GND  
LX  
+
2 x "AA"  
Cell  
3V  
TC125  
Package Type  
SHDN PS  
NC  
3
5-Pin SOT-23A  
2
1
LX  
5
GND  
4
LX  
5
GND  
4
Two Cell to 5V Boost Regulator  
TC126  
TC125  
1
2
3
1
2
3
V
SENSE  
NC  
SHDN  
PS  
NC  
DD  
NOTE: 5-Pin SOT-23A is equivalent to the EIAJ SC-74A  
2002 Microchip Technology Inc.  
DS21372B-page 1  
1234567...12

中文翻译

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