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LP3985ITL-3.0 PDF预览

LP3985ITL-3.0

更新时间: 2024-01-28 10:02:09
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器
页数 文件大小 规格书
17页 567K
描述
Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator

LP3985ITL-3.0 技术参数

是否Rohs认证: 符合生命周期:Transferred
包装说明:VFBGA, BGA5,3X3,17/10Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:7.54可调性:FIXED
最大回动电压 1:0.1 V标称回动电压 1:0.06 V
最大绝对输入电压:6.5 V最大输入电压:6 V
最小输入电压:2.5 VJESD-30 代码:R-PBGA-B5
JESD-609代码:e1长度:1.463 mm
最大电网调整率:0.0075%最大负载调整率:0.0089%
湿度敏感等级:1功能数量:1
输出次数: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 1:3.09 V
最小输出电压 1:2.91 V标称输出电压 1:3 V
封装主体材料:PLASTIC/EPOXY封装代码:VFBGA
封装等效代码:BGA5,3X3,17/10封装形状:RECTANGULAR
封装形式:GRID ARRAY, VERY THIN PROFILE, 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 LDO REGULATOR座面最大高度:0.675 mm
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:40
最大电压容差:3%宽度:1.006 mm
Base Number Matches:1

LP3985ITL-3.0 数据手册

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June 2003  
LP3985  
Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS  
Voltage Regulator  
2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V. 3.1V, 3.2V, 3.3V, 4.7V,  
General Description  
4.8V and 5.0V output voltages. For other output voltage  
The LP3985 is designed for portable and wireless applica-  
options between 2.5V to 5.0V or for a dual LP3985, please  
tions with demanding performance and space requirements.  
contact National Semiconductor sales office.  
The LP3985 is stable with a small 1µF 30% ceramic or  
high-quality tantalum output capacitor. The micro SMD re-  
quires the smallest possible PC board area - the total appli-  
cation circuit area can be less than 2.0mm x 2.5mm, a  
fraction of a 1206 case size.  
Key Specifications  
n 2.5 to 6.0V input range  
n 150mA guaranteed output  
@
n 50dB PSRR at 1kHz VIN = VOUT + 0.2V  
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.  
n 1.5µA quiescent current when shut down  
n Fast Turn-On time: 200 µs (typ.)  
n 100mV maximum dropout with 150mA load  
n 30µVrms output noise (typ) over 10Hz to 100kHz  
n −40 to +125˚C junction temperature range for operation  
n 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V, 3.1V, 3.2V,  
3.3V, 4.7V, 4.8V and 5.0V outputs standard  
An optional external bypass capacitor reduces the output  
noise without slowing down the load transient response.  
Fast start-up time is achieved by utilizing an internal  
power-on circuit that actively pre-charges the bypass capaci-  
tor.  
Features  
Power supply rejection is better than 50 dB at low frequen-  
cies and starts to roll off at 1kHz. High power supply rejection  
is maintained down to low input voltage levels common to  
battery operated circuits.  
n Miniature 5-I/O micro SMD and SOT-23-5 package  
n Logic controlled enable  
n Stable with ceramic and high quality tantalum capacitors  
n Fast turn-on  
n Thermal shutdown and short-circuit current limit  
The device is ideal for mobile phone and similar battery  
powered wireless applications. It provides up to 150 mA,  
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.  
Applications  
n CDMA cellular handsets  
n Wideband CDMA cellular handsets  
n GSM cellular handsets  
The LP3985 is available in a 5 bump small bump micro SMD,  
a 5 bump large bump micro SMD, a 5 bump thin micro SMD  
and a 5 pin SOT-23 package. Performance is specified for  
−40˚C to +125˚C temperature range and is available in 2.5V,  
n Portable information appliances  
Typical Application Circuit  
10136402  
Note: Pin Numbers in parenthesis indicate micro SMD package.  
*
Optional Noise Reduction Capacitor.  
© 2003 National Semiconductor Corporation  
DS101364  
www.national.com  

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