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LP38859SX-1.2 PDF预览

LP38859SX-1.2

更新时间: 2024-02-25 02:35:27
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器软启动
页数 文件大小 规格书
14页 852K
描述
3A Fast-Response High-Accuracy LDO Linear Regulator with Soft-Start

LP38859SX-1.2 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: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:5.18
可调性:FIXED最大回动电压 1:0.45 V
标称回动电压 1:0.35 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:1.65 V
JESD-30 代码:R-PSSO-G5JESD-609代码:e3
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 1:3 A
最大输出电压 1:1.236 V最小输出电压 1:1.164 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:TR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:CMOS
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:NOT SPECIFIED最大电压容差:3%
宽度:8.64 mmBase Number Matches:1

LP38859SX-1.2 数据手册

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June 2006  
LP38859  
3A Fast-Response High-Accuracy LDO Linear Regulator  
with Soft-Start  
General Description  
Features  
n Standard VOUT values of 0.8V and 1.2V  
n Stable with 10µF Ceramic capacitors  
n Dropout voltage of 240 mV (typical) at 3A load current  
n Precision Output Voltage across all line and load  
conditions:  
The LP38859 is a high current, fast response regulator  
which can maintain output voltage regulation with extremely  
low 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 mini-  
mum external capacitance is required to maintain loop sta-  
bility.  
1.0% VOUT for TJ = 25˚C  
2.0% VOUT for 0˚C TJ +125˚C  
3.0% VOUT for -40˚C TJ +125˚C  
n Over-Temperature and Over-Current protection  
n Available in 5 lead TO-220 and TO-263 packages  
n Custom VOUT values between 0.8V and 1.2V are  
available  
n −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 LP38859 is  
available in TO-220 and TO-263 5-Lead packages.  
Applications  
n ASIC Power Supplies In:  
- Desktops, Notebooks, and Graphics Cards, Servers  
- Gaming Set Top Boxes, Printers and Copiers  
n Server Core and I/O Supplies  
n DSP and FPGA Power Supplies  
n SMPS Post-Regulator  
Dropout Voltage: 240 mV (typical) at 3A load current.  
Low Ground Pin Current: 14 mA (typical) at 3A load cur-  
rent.  
Soft-Start: Programmable Soft-Start time.  
Precision Output Voltage: 1.0% for TJ = 25˚C and 2.0%  
for 0˚C TJ +125˚C, across all line and load conditions  
Typical Application Circuit  
20131201  
© 2006 National Semiconductor Corporation  
DS201312  
www.national.com  

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