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LP38855S-1.2 PDF预览

LP38855S-1.2

更新时间： 2024-02-11 07:53:12
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 357K
描述
1.5A Fast-Response High-Accuracy LDO Linear Regulator with Enable

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中文翻译

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LP38855S-1.2 技术参数

生命周期：Not Recommended零件包装代码：D2PAK
包装说明：TO-263, SMSIP5H,.6,67TB针数：4
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.14
可调性：FIXED最大回动电压 1：0.18 V
标称回动电压 1：0.13 V最大绝对输入电压：6 V
最大输入电压：5.5 V最小输入电压：0.98 V
JESD-30 代码：R-PSSO-G5JESD-609代码：e0
长度：10.16 mm湿度敏感等级：3
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 1：1.2 V最小输出电压 1：0.8 V
标称输出电压 1：1.2 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
包装方法：TUBE峰值回流温度（摄氏度）：235
认证状态：Not Qualified调节器类型：FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度：4.83 mm子类别：Other Regulators
表面贴装：YES技术：CMOS
端子面层：Tin/Lead (Sn/Pb)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：NOT SPECIFIED最大电压容差：3%
宽度：8.42 mmBase Number Matches：1

LP38855S-1.2 数据手册

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December 2006  
LP38855  
1.5A Fast-Response High-Accuracy LDO Linear Regulator  
with Enable  
General Description  
Features  
The LP38855 is a high-current, fast-response regulator which  
can maintain output voltage regulation with an extremely low  
input to output voltage drop. Fabricated on a CMOS process,  
the device operates from two input voltages: VBIAS provides  
power for the internal bias and control circuits, as well as drive  
for the gate of the N-MOS power transistor, while VIN supplies  
power to the load. The use of an external bias rail allows the  
part to operate from ultra low VIN voltages. Unlike bipolar reg-  
ulators, the CMOS architecture consumes extremely low qui-  
escent 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.  
Standard VOUT values of 0.8V and 1.2V  
■
■
■
■
Wide VBIAS Supply operating range of 3.0V to 5.5V  
Stable with 10 µF ceramic capacitors  
Dropout voltage of 130 mV (typical) at 1.5A load current  
Precision Output Voltage across all line and load  
conditions:  
■
±1.0% for TJ = 25°C  
—
—
—
±2.0% for 0°C ≤ TJ ≤ +125°C  
±3.0% for -40°C ≤ TJ ≤ +125°C  
Over-Temperature and Over-Current protection  
Available in 5 lead TO-220 and TO-263 packages  
Custom VOUT values between 0.8V and 1.2V are available  
-40°C to +125°C Operating Temperature Range  
■
■
■
■
The fast transient response of this device makes it suitable  
for use in powering DSP, Microcontroller Core voltages and  
Switch Mode Power Supply post regulators. The LP38855 is  
available in TO-220 and TO-263 5-Lead packages.  
Dropout Voltage: 130 mV (typical) at 1.5A load current.  
Low Ground Pin Current: 14 mA (typical) at 1.5A load cur-  
rent.  
Applications  
ASIC Power Supplies In:  
■
- Desktops, Notebooks, and Graphics Cards, Servers  
- Gaming Set Top Boxes, Printers and Copiers  
Shutdown Current: 1 µA (typical) IIN(GND) when EN pin is low.  
Precision Output Voltage: ±1.0% for TJ = 25°C and ±2.0%  
for 0°C ≤ TJ ≤ +125°C, across all line and load conditions  
Server Core and I/O Supplies  
■
■
■
DSP and FPGA Power Supplies  
SMPS Post-Regulator  
Typical Application Circuit  
20202601  
© 2007 National Semiconductor Corporation  
202026  
www.national.com  
1234567...14

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