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LP2978AIM5-3.8 PDF预览

LP2978AIM5-3.8

更新时间: 2024-02-16 00:01:41
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器调节器光电二极管输出元件
页数 文件大小 规格书
7页 106K
描述
Micropower SOT, 50 mA Low-Noise Ultra Low-Dropout Regulator

LP2978AIM5-3.8 技术参数

是否Rohs认证: 符合生命周期:Obsolete
包装说明:TSSOP, TSOP5/6,.11,37Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.7可调性:FIXED
最大回动电压 1:0.225 V标称回动电压 1:0.12 V
最大绝对输入电压:16 V最大输入电压:16 V
最小输入电压:4.8 VJESD-30 代码:R-PDSO-G5
JESD-609代码:e3长度:2.9 mm
最大电网调整率:0.0134%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 1:0.05 A
最大输出电压 1:3.895 V最小输出电压 1:3.705 V
标称输出电压 1:3.8 V封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装等效代码:TSOP5/6,.11,37
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK 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:1.2 mm子类别:Other Regulators
表面贴装:YES技术:BIPOLAR
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:0.95 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED最大电压容差:2.5%
宽度:1.6 mmBase Number Matches:1

LP2978AIM5-3.8 数据手册

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July 2000  
LP2978  
Micropower SOT, 50 mA Low-Noise Ultra Low-Dropout  
Regulator  
Designed for Use with Very Low ESR Output Capacitors  
General Description  
The LP2978 is a 50 mA, fixed-output voltage regulator de-  
signed to provide ultra low-dropout and low noise in battery  
powered applications.  
Features  
n Ultra low dropout voltage  
n Smallest possible size (SOT-23 Package)  
n Requires minimum external components  
n Stable with low-ESR output capacitor  
Using an optimized VIP (Vertically Integrated PNP) pro-  
cess, the LP2978 delivers unequalled performance in all  
specifications critical to battery-powered designs:  
<
n
1 µA quiescent current when shut down  
n Low ground pin current at all loads  
n Output voltage accuracy 1% (A Grade)  
n High peak current capability  
@
Dropout Voltage: Typically 120 mV 50 mA load, and 7 mV  
@
1 mA load.  
@
Ground Pin Current: Typically 350 µA 50 mA load, and  
n Wide supply voltage range (16V max)  
n Low ZOUT: 0.3typical (10 Hz to 1 MHz)  
n Overtemperature/overcurrent protection  
n −40˚C to +125˚C junction temperature range  
n Custom voltages available  
@
75 µA 1 mA load.  
Enhanced Stability: The LP2978 is stable with output ca-  
pacitor ESR as low as 5 m, which allows the use of ceramic  
capacitors on the output.  
Sleep Mode: Less than 1 µA quiescent current when  
ON/OFF pin is pulled low.  
Applications  
Smallest Possible Size: SOT-23 package uses absolute  
minimum board space.  
n Cellular Phone  
n Palmtop/Laptop Computer  
n Personal Digital Assistant (PDA)  
n Camcorder, Personal Stereo, Camera  
Precision Output: 1% tolerance output voltages available  
(A grade).  
Low Noise: By adding a 10 nF bypass capacitor, output  
noise can be reduced to 30 µV (typical).  
Block Diagram  
DS100935-1  
VIP is a trademark of National Semiconductor Corporation.  
© 2000 National Semiconductor Corporation  
DS100935  
www.national.com  

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