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LM2727MTC/NOPB

更新时间： 2024-10-28 20:52:39
品牌 Logo 应用领域
美国国家半导体 - NSC PC开关光电二极管
页数 文件大小 规格书
22页 587K
描述
IC SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO14, PLASTIC, TSSOP-14, Switching Regulator or Controller

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LM2727MTC/NOPB 技术参数

是否Rohs认证： 符合生命周期：Transferred
包装说明：TSSOP, TSSOP14,.25Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.17模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：VOLTAGE-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：16 V最小输入电压：2.2 V
标称输入电压：5 VJESD-30 代码：R-PDSO-G14
JESD-609代码：e3长度：5 mm
湿度敏感等级：1功能数量：1
端子数量：14封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP14,.25
封装形状：RECTANGULAR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子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：PUSH-PULL
最大切换频率：2000 kHz技术：BICMOS
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：40宽度：4.4 mm
Base Number Matches：1

LM2727MTC/NOPB 数据手册

 浏览型号LM2727MTC/NOPB的Datasheet PDF文件第2页浏览型号LM2727MTC/NOPB的Datasheet PDF文件第3页浏览型号LM2727MTC/NOPB的Datasheet PDF文件第4页浏览型号LM2727MTC/NOPB的Datasheet PDF文件第5页浏览型号LM2727MTC/NOPB的Datasheet PDF文件第6页浏览型号LM2727MTC/NOPB的Datasheet PDF文件第7页 
June 2003  
LM2727/LM2737  
N-Channel FET Synchronous Buck Regulator Controller  
for Low Output Voltages  
General Description  
Features  
n Input power from 2.2V to 16V  
The LM2727 and LM2737 are high-speed, synchronous,  
switching regulator controllers. They are intended to control  
currents of 0.7A to 20A with up to 95% conversion efficien-  
cies. The LM2727 employs output over-voltage and under-  
voltage latch-off. For applications where latch-off is not de-  
sired, the LM2737 can be used. Power up and down  
sequencing is achieved with the power-good flag, adjustable  
soft-start and output enable features. The LM2737 and  
LM2737 operate from a low-current 5V bias and can convert  
from a 2.2V to 16V power rail. Both parts utilize a fixed-  
frequency, voltage-mode, PWM control architecture and the  
switching frequency is adjustable from 50kHz to 2MHz by  
adjusting the value of an external resistor. Current limit is  
achieved by monitoring the voltage drop across the on-  
resistance of the low-side MOSFET, which enhances low  
duty-cycle operation. The wide range of operating frequen-  
cies gives the power supply designer the flexibility to fine-  
tune component size, cost, noise and efficiency. The adap-  
tive, non-overlapping MOSFET gate-drivers and high-side  
bootstrap structure helps to further maximize efficiency. The  
high-side power FET drain voltage can be from 2.2V to 16V  
and the output voltage is adjustable down to 0.6V.  
n Output voltage adjustable down to 0.6V  
n Power Good flag, adjustable soft-start and output enable  
for easy power sequencing  
n Output over-voltage and under-voltage latch-off  
(LM2727)  
n Output over-voltage and under-voltage flag (LM2737)  
n Reference Accuracy: 1.5% (0˚C - 125˚C)  
n Current limit without sense resistor  
n Soft start  
n Switching frequency from 50 kHz to 2 MHz  
n TSSOP-14 package  
Applications  
n Cable Modems  
n Set-Top Boxes/ Home Gateways  
n DDR Core Power  
n High-Efficiency Distributed Power  
n Local Regulation of Core Power  
Typical Application  
20049410  
© 2003 National Semiconductor Corporation  
DS200494  
www.national.com  
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