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LP3985ITLX-3.1

更新时间： 2024-11-15 02:58:27
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描述
LP3985 Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator

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LP3985ITLX-3.1 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Obsolete零件包装代码：BGA
包装说明：0.600 MM HEIGHT, MICRO, SMD-5针数：5
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.11
Is Samacsys：N最大回动电压 1：0.1 V
最大输入电压：6 V最小输入电压：2.5 V
JESD-30 代码：R-PBGA-B5JESD-609代码：e0
长度：1.463 mm湿度敏感等级：1
功能数量：1端子数量：5
工作温度TJ-Max：125 °C工作温度TJ-Min：-40 °C
最大输出电流 1：0.15 A最大输出电压 1：3.193 V
最小输出电压 1：3.007 V标称输出电压 1：3.1 V
封装主体材料：PLASTIC/EPOXY封装代码：VFBGA
封装形状：RECTANGULAR封装形式：GRID ARRAY, VERY THIN PROFILE, FINE PITCH
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 LDO REGULATOR座面最大高度：0.675 mm
表面贴装：YES技术：CMOS
端子面层：TIN LEAD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：40宽度：1.006 mm
Base Number Matches：1

LP3985ITLX-3.1 数据手册

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LP3985  
www.ti.com  
SNVS087AC –OCTOBER 2000–REVISED MAY 2013  
LP3985 Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator  
Check for Samples: LP3985  
1
FEATURES  
DESCRIPTION  
The LP3985 is designed for portable and wireless  
applications with demanding performance and space  
requirements.  
2
•
Miniature 5-I/O DSBGA and USON Package  
Logic Controlled Enable  
•
•
Stable with Ceramic and High Quality  
Tantalum Capacitors  
The LP3985 is stable with a small 1µF ±30% ceramic  
or high-quality tantalum output capacitor. The DSBGA  
requires the smallest possible PC board area - the  
total application circuit area can be less than 2.0mm x  
2.5mm, a fraction of a 1206 case size.  
•
•
Fast Turn-on  
Thermal Shutdown and Short-Circuit Current  
Limit  
The LP3985's performance is optimized for battery  
powered systems to deliver ultra low noise, extremely  
low dropout voltage and low quiescent current.  
Regulator ground current increases only slightly in  
dropout, further prolonging the battery life.  
APPLICATIONS  
•
•
•
•
CDMA Cellular Handsets  
Wideband CDMA Cellular Handsets  
GSM Cellular Handsets  
An optional external bypass capacitor reduces the  
output noise without slowing down the load transient  
response. Fast startup time is achieved by utilizing an  
internal power-on circuit that actively pre-charges the  
bypass capacitor.  
Portable Information Appliances  
KEY SPECIFICATIONS  
•
•
•
•
•
•
•
2.5 to 6.0V Input Range  
Power supply rejection is better than 50dB at low  
frequencies and starts to roll off at 1kHz. High power  
supply rejection is maintained down to low input  
voltage levels common to battery operated circuits.  
150mA Verified Output  
50dB PSRR at 1kHz @ VIN = VOUT + 0.2V  
≤1.5μA Quiescent Current when Shut Down  
Fast Turn-On time: 200μs (typ.)  
The device is ideal for mobile phone and similar  
battery powered wireless applications. It provides up  
to 150mA, from a 2.5V to 6V input. The LP3985  
consumes less than 1.5µA in disable mode and has  
fast turn-on time less than 200µs.  
100mV Maximum Dropout with 150mA Load  
30μVrms Output Noise (typ.) Over 10Hz to  
100kHz  
•
•
−40 to +125°C Junction Temperature Range for  
Operation  
2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V, 3.1V,  
3.2V, 3.3V, 4.7V, 4.75V, 4.8V and 5.0V outputs  
standard  
Typical Application Circuit  
1(C3)  
3(A1)  
5(C1)  
VIN  
VOUT  
LP3985  
1mF  
1mF  
4(A3)  
VEN  
BYPASS  
*
2(B2)  
Pin Numbers in parenthesis indicate DSBGA package.  
* Optional Noise Reduction Capacitor.  
Figure 1.  
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 © 2000–2013, Texas Instruments Incorporated  
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