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LP2957IS/NOPB PDF预览

LP2957IS/NOPB

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
14页 381K
描述
IC VREG 5 V FIXED POSITIVE LDO REGULATOR, 0.8 V DROPOUT, PSSO5, PLASTIC, TO-263, 5 PIN, Fixed Positive Single Output LDO Regulator

LP2957IS/NOPB 技术参数

是否Rohs认证: 符合生命周期:Transferred
包装说明:PLASTIC, TO-263, 5 PINReach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.12可调性:FIXED
最大回动电压 1:0.8 V标称回动电压 1:0.8 V
最大绝对输入电压:30 V最大输入电压:30 V
最小输入电压:6 VJESD-30 代码:R-PSSO-G5
JESD-609代码:e3长度:10.16 mm
最大电网调整率:0.02%最大负载调整率:0.015%
湿度敏感等级:3功能数量:1
输出次数:1端子数量:5
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流 1:0.25 A最大输出电压 1:5.12 V
最小输出电压 1:4.88 V标称输出电压 1:5 V
封装主体材料:PLASTIC/EPOXY封装代码:TO-263
封装等效代码:SMSIP5H,.6,67TB封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):245
认证状态:Not Qualified调节器类型:FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度:4.8 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:1.7 mm端子位置:SINGLE
处于峰值回流温度下的最长时间:30最大电压容差:2.4%
宽度:8.635 mmBase Number Matches:1

LP2957IS/NOPB 数据手册

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June 1998  
LP2957/LP2957A  
5V Low-Dropout Regulator for µP Applications  
General Description  
Features  
n 5V output within 1.4% over temperature (A grade)  
n Easily programmed for snap-on/snap-off output  
n Guaranteed 250 mA output current  
The LP2957 is a 5V micropower voltage regulator with elec-  
tronic shutdown, error flag, very low quiescent current  
(150 µA typical at 1 mA load), and very low dropout voltage  
(470 mV typical at 250 mA load current).  
n Extremely low quiescent current  
Output can be wired for snap-on/snap-off operation to elimi-  
nate transition voltage states where µP operation may be un-  
predictable.  
n Low Input-Output voltage required for regulation  
n Reverse battery protection  
n Extremely tight line and load regulation  
n Very low temperature coefficient  
n Current and thermal limiting  
n Error flag signals when output is out of regulation  
Output crowbar (50 mA typical pull-down current) will bring  
down the output quickly when the regulator snaps off or  
when the shutdown function is activated.  
The part has tight line and load regulation (0.04% typical)  
and low output temperature coefficient (20 ppm/˚C typical).  
Applications  
n High-efficiency linear regulator  
n Battery-powered regulator  
The accuracy of the 5V output is guaranteed at room tem-  
perature and over the full operating temperature range.  
The LP2957 is available in the five-lead TO-220 and TO-263  
packages.  
Package Outline  
Bent, Staggered Leads  
5-Lead TO-220 (T)  
DS011340-16  
Top View  
Order Number LP2957AIT or LP2957IT  
See NS Package Number T05D  
Plastic Surface Mount Package  
5-Lead TO-263 (S)  
DS011340-17  
Top View  
DS011340-18  
Side View  
Order Number LP2957AIS or LP2957IS  
See NS Package Number TS5B  
© 1999 National Semiconductor Corporation  
DS011340  
www.national.com  

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IC VREG FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.8 V DROPOUT, PDSO16, ROHS COMPLIANT, SM