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LP38842MRX-ADJ/NOPB PDF预览

LP38842MRX-ADJ/NOPB

更新时间： 2024-09-27 01:12:59
品牌 Logo 应用领域
德州仪器 - TI 光电二极管输出元件调节器
页数 文件大小 规格书
15页 846K
描述
1.5A Ultra Low Dropout Adjustable Linear Regulators Stable with Ceramic Output Capacitors

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LP38842MRX-ADJ/NOPB 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：SOIC
包装说明：HLSOP, SOP8,.25针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：0.92可调性：ADJUSTABLE
最大回动电压 1：0.315 V标称回动电压 1：0.115 V
最大输入电压：5.5 V最小输入电压：0.675 V
JESD-30 代码：R-PDSO-G8JESD-609代码：e3
长度：4.89 mm最大负载调整率 (%)：1.65%
湿度敏感等级：3功能数量：1
输出次数：1端子数量：8
工作温度TJ-Max：125 °C工作温度TJ-Min：-40 °C
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电流 1：1.5 A最大输出电压 1：1.5 V
最小输出电压 1：0.56 V封装主体材料：PLASTIC/EPOXY
封装代码：HLSOP封装等效代码：SOP8,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE
包装方法：TR峰值回流温度（摄氏度）：260
认证状态：Not Qualified调节器类型：ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度：1.7 mm子类别：Other Regulators
表面贴装：YES技术：CMOS
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3.9 mm
Base Number Matches：1

LP38842MRX-ADJ/NOPB 数据手册

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LP38842-ADJ  
www.ti.com  
SNVS304A –FEBRUARY 2005–REVISED APRIL 2013  
LP38842-ADJ 1.5A Ultra Low Dropout Adjustable Linear Regulators  
Stable with Ceramic Output Capacitors  
Check for Samples: LP38842-ADJ  
1
FEATURES  
DESCRIPTION  
The LP38842-ADJ is a high current, fast response  
2
•
•
Ideal for Conversion From 1.8V or 1.5V Inputs  
regulator which can maintain output voltage  
regulation with minimum input to output voltage drop.  
Fabricated on a CMOS process, the device operates  
from two input voltages: Vbias provides voltage to  
drive the gate of the N-MOS power transistor, while  
Vin is the input voltage which supplies power to the  
load. The use of an external bias rail allows the part  
to operate from ultra low Vin voltages. Unlike bipolar  
regulators, the CMOS architecture consumes  
extremely low quiescent current at any output load  
current. The use of an N-MOS power transistor  
results in wide bandwidth, yet minimum external  
capacitance is required to maintain loop stability.  
Designed for Use With Low ESR Ceramic  
Capacitors  
•
•
•
•
•
•
•
•
•
Ultra Low Dropout Voltage (115mV at 1.5A typ)  
0.56V to 1.5V Adjustable Output Range  
Load Regulation of 0.1%/A (typ)  
30nA Quiescent Current in Shutdown (typ)  
Low Ground Pin Current at all Loads  
Over Temperature/Over Current Protection  
Available in 8 Lead SO PowerPAD Package  
−40°C to +125°C Junction Temperature Range  
UVLO Disables Output When VBIAS < 3.8V  
The fast transient response of these devices makes  
them suitable for use in powering DSP,  
Microcontroller Core voltages and Switch Mode  
Power Supply post regulators. The parts are available  
in the SO PowerPAD package.  
APPLICATIONS  
•
ASIC Power Supplies In:  
–
Desktops, Notebooks, and Graphics Cards,  
Servers  
Dropout Voltage: 115 mV (typ) at 1.5A load current.  
Quiescent Current: 30 mA (typ) at full load.  
–
Gaming Set Top Boxes, Printers and  
Copiers  
Shutdown Current: 30 nA (typ) when S/D pin is low.  
•
•
•
Server Core and I/O Supplies  
DSP and FPGA Power Supplies  
SMPS Post-Regulators  
Precision  
temperature accuracy.  
Reference  
Voltage:  
1.5%  
room  
TYPICAL APPLICATION CIRCUIT  
OUT  
OUT  
IN  
IN  
R1  
R2  
10 mF  
Ceramic  
LP38842-  
ADJ  
C
FF  
ADJ  
S/D  
BIAS  
5V ± 10%  
BIAS  
S/D  
*
0.1 mF  
GND  
4.7 mF  
GND  
GND  
* Minimum value required if Tantalum capacitor is used (see Application Hints).  
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 © 2005–2013, Texas Instruments Incorporated  
 
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LP38842MRX-ADJ/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LP38842MR-ADJ/NOPB TI

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 1.5A Ultra Low Dropout Adjustable Linear Regulators Stable with Ceramic Output Capacitors

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