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LP2952I-3.3MDC PDF预览

LP2952I-3.3MDC

更新时间： 2024-11-22 13:09:27
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
22页 1045K
描述
IC VREG FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.8 V DROPOUT, UUC, DIE, Fixed/Adjustable Positive Single Output LDO Regulator

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LP2952I-3.3MDC 技术参数

生命周期：Obsolete包装说明：DIE, DIE OR CHIP
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.68
可调性：FIXED最大回动电压 1：0.8 V
标称回动电压 1：0.47 V最大绝对输入电压：30 V
JESD-30 代码：X-XUUC-N最大电网调整率 (%/V)：0.0156
最大负载调整率 (%)：0.3%功能数量：1
输出次数：1工作温度TJ-Max：125 °C
工作温度TJ-Min：-40 °C最大输出电流 1：0.25 A
最大输出电压 1：29 V最小输出电压 1：1.23 V
标称输出电压 1：3.3 V封装主体材料：UNSPECIFIED
封装代码：DIE封装等效代码：DIE OR CHIP
封装形状：UNSPECIFIED封装形式：UNCASED CHIP
认证状态：Not Qualified调节器类型：FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
子类别：Other Regulators表面贴装：YES
技术：BIPOLAR端子形式：NO LEAD
端子位置：UPPER最大电压容差：2.4%
Base Number Matches：1

LP2952I-3.3MDC 数据手册

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March 2005  
LP2952/LP2952A/LP2953/LP2953A  
Adjustable Micropower Low-Dropout Voltage Regulators  
General Description  
Features  
n Output voltage adjusts from 1.23V to 29V  
n Guaranteed 250 mA output current  
n Extremely low quiescent current  
n Low dropout voltage  
The LP2952 and LP2953 are micropower voltage regulators  
with very low quiescent current (130 µA typical at 1 mA load)  
and very low dropout voltage (typ. 60 mV at light load and  
470 mV at 250 mA load current). They are ideally suited for  
battery-powered systems. Furthermore, the quiescent cur-  
rent increases only slightly at dropout, which prolongs bat-  
tery life.  
n Extremely tight line and load regulation  
n Very low temperature coefficient  
n Current and thermal limiting  
n Reverse battery protection  
n 50 mA (typical) output pulldown crowbar  
n 5V and 3.3V versions available  
The LP2952 and LP2953 retain all the desirable character-  
istics of the LP2951, but offer increased output current,  
additional features, and an improved shutdown function.  
The internal crowbar pulls the output down quickly when the  
shutdown is activated.  
LP2953 Versions Only  
The error flag goes low if the output voltage drops out of  
regulation.  
n Auxiliary comparator included with CMOS/TTL  
compatible output levels. Can be used for fault  
detection, low input line detection, etc.  
Reverse battery protection is provided.  
The internal voltage reference is made available for external  
use, providing a low-T.C. reference with very good line and  
load regulation.  
Applications  
n High-efficiency linear regulator  
n Regulator with under-voltage shutdown  
n Low dropout battery-powered regulator  
n Snap-ON/Snap-OFF regulator  
The parts are available in DIP and surface mount packages.  
Block Diagrams  
LP2953  
LP2952  
01112702  
01112701  
© 2005 National Semiconductor Corporation  
DS011127  
www.national.com  
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