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LP3991TLX-1.55/NOPB PDF预览

LP3991TLX-1.55/NOPB

更新时间： 2024-09-09 19:51:59
品牌 Logo 应用领域
德州仪器 - TI 输出元件调节器
页数 文件大小 规格书
21页 1071K
描述
300-mA LDO for Digital Applications 4-DSBGA

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LP3991TLX-1.55/NOPB 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：FBGA, BGA4,2X2,20Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
Factory Lead Time：6 weeks风险等级：5.65
可调性：FIXED最大绝对输入电压：6.5 V
JESD-30 代码：S-PBGA-B4JESD-609代码：e1
最大电网调整率：0.024%湿度敏感等级：1
输出次数：1端子数量：4
工作温度TJ-Max：125 °C工作温度TJ-Min：-40 °C
最大输出电流 1：0.3 A标称输出电压 1：1.55 V
封装主体材料：PLASTIC/EPOXY封装代码：FBGA
封装等效代码：BGA4,2X2,20封装形状：SQUARE
封装形式：GRID ARRAY, FINE PITCH包装方法：TAPE AND REEL
峰值回流温度（摄氏度）：260认证状态：Not Qualified
调节器类型：FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR子类别：Other Regulators
表面贴装：YES技术：CMOS
端子面层：Tin/Silver/Copper (Sn/Ag/Cu)端子形式：BALL
端子节距：0.5 mm端子位置：BOTTOM
处于峰值回流温度下的最长时间：NOT SPECIFIED最大电压容差：3%
Base Number Matches：1

LP3991TLX-1.55/NOPB 数据手册

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LP3991  
www.ti.com  
SNVS296H –DECEMBER 2006–REVISED MAY 2013  
LP3991 300mA Linear Voltage Regulator for Digital Applications  
Check for Samples: LP3991  
1
FEATURES  
DESCRIPTION  
Operating from a minimum input voltage of 1.65V, the  
LP3991 regulator has been designed to provide fixed  
stable output voltages for load currents up to 300mA.  
This device is suitable where accurate, low voltages  
are required from low input voltage sources and is  
therefore suitable for post regulation of switched  
mode regulators. In such applications, significant  
improvements in performance and EMI can be  
realized, with little reduction in overall efficiency. The  
LP3991 will provide fixed outputs as low as 1.2V from  
a wide input range of 1.65V to 4.0V Using the enable  
pin, the device may be controlled to provide a  
shutdown state, in which negligible supply current is  
drawn.  
2
•
•
•
•
•
•
•
•
•
Operation from 1.65V to 4.0V Input  
1% Accuracy at Room Temperature  
Output Voltage from 1.2V to 2.8V  
125mV Dropout at 300mA Load  
50µA Quiescent Current at 1mA Load  
Inrush Current Controlled to 600mA  
PSRR 65dB at 1kHz  
100µs Start-Up Time for 1.5V VOUT  
Stable with Ceramic Capacitors as Small as  
0402  
•
Thermal-Overload and Short-Circuit Protection  
The LP3991 is designed to be stable with space  
saving ceramic capacitors as small as 0402 case  
size.  
APPLICATIONS  
•
•
•
Post DC/DC Regulator  
Battery Operated Devices  
Hand-Held Information Appliances  
Performance is specified for a -40°C to 125°C  
junction temperature range.  
For output voltage options please contact your local  
Texas Instruments sales office.  
PACKAGE  
•
4 Pin DSBGA (0.963mm x 1.446mm)  
Typical Application Circuit  
LP3991  
V
V
IN  
IN  
B2  
1.0 mF  
V
OUT  
B1  
C
IN  
4.7 mF  
C
*
OUT  
Load  
V
EN  
V
EN  
A2  
Gnd  
A1  
* For V  
= 1.3V or less, C  
OUT  
OUT  
may be reduced to 2.2 mF.  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2006–2013, Texas Instruments Incorporated  
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