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LT3070EUFD PDF预览

LT3070EUFD

更新时间: 2024-09-15 05:43:31
品牌 Logo 应用领域
凌特 - Linear 稳压器
页数 文件大小 规格书
24页 202K
描述
5A, Low Noise, Programmable Output, 85mV Dropout Linear Regulator

LT3070EUFD 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Transferred零件包装代码:QFN
包装说明:HVQCCN, LCC28,.16X.2,20针数:28
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.12
可调性:ADJUSTABLE最大回动电压 1:0.15 V
标称回动电压 1:0.085 V最大差分输入-输出电压:2.7 V
最小差分输入-输出电压:1.05 VJESD-30 代码:R-PQCC-N28
JESD-609代码:e0长度:5 mm
最大电网调整率 (%/V):0.0026最大负载调整率 (%):2.2%
湿度敏感等级:1功能数量:1
输出次数:1端子数量:28
工作温度TJ-Max:125 °C工作温度TJ-Min:-40 °C
最大输出电流 1:5 A最大输出电压 1:1.8 V
最小输出电压 1:0.8 V封装主体材料:PLASTIC/EPOXY
封装代码:HVQCCN封装等效代码:LCC28,.16X.2,20
封装形状:RECTANGULAR封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):235认证状态:Not Qualified
调节器类型:ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR座面最大高度:0.8 mm
子类别:Other Regulators表面贴装:YES
技术:BIPOLAR端子面层:Tin/Lead (Sn/Pb)
端子形式:NO LEAD端子节距:0.5 mm
端子位置:QUAD处于峰值回流温度下的最长时间:20
宽度:4 mmBase Number Matches:1

LT3070EUFD 数据手册

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Electrical Specifications Subject to Change  
LT3070  
5A, Low Noise,  
Programmable Output,  
85mV Dropout  
Linear Regulator  
FEATURES  
DESCRIPTION  
The LT®3070 is a low voltage, UltraFast™ transient re-  
sponse linear regulator. The device supplies up to 5A of  
output current with a typical dropout voltage of 85mV.  
A 0.01μF reference bypass capacitor decreases output  
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Output Current: 5A  
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Dropout Voltage: 85mV Typical  
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Digitally Programmable V : 0.8V to 1.8V  
OUT  
n
Digital Output Margining: 1ꢀ, ꢁꢀ or 5ꢀ  
n
Low Output Noise: 25μV  
(10Hz to 100kHz)  
voltage noise to 25μV  
. The LT3070’s high bandwidth  
RMS  
RMS  
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Parallelable: Use Two for a 10A Output  
Precision Current Limit: 10ꢀ  
permits the use of low ESR ceramic capacitors, saving  
bulk capacitance and cost. The LT3070’s features make  
it ideal for high performance FPGAs, microprocessors or  
sensitive communication supply applications.  
1ꢀ Accuracy Over Line, Load and Temperature  
Stable with Low ESR Ceramic Output Capacitors  
(15μF Minimum)  
High Freꢁuency PSRR: 35dB at 1MHz  
Enable Function Turns Output On/Off  
VIOC Pin Controls Buck Converter to Maintain Low  
Power Dissipation and Optimize Efficiency  
PWRGD/UVLO Flag  
Output voltage is digitally selectable in 50mV increments  
over a 0.8V to 1.8V range. A margining function allows the  
user to tolerance system output voltage in increments of  
1ꢀ, 3ꢀ or 5ꢀ. The IC incorporates a uniꢁue tracking  
functiontocontrolabuckregulatorpoweringtheLT3070’s  
input. This tracking function drives the buck regulator to  
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n
n
n
n
n
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Current Limit Foldback Protection  
Thermal Shutdown  
maintain the LT3070’s input voltage to V  
minimizing power dissipation.  
+ 300mV,  
OUT  
28-Lead (4mm × 5mm) QFN Package  
InternalprotectionincludesUVLO,reverse-currentprotec-  
tion, precision current limiting with power foldback and  
thermal shutdown. The LT3070 regulator is available in a  
thermally enhanced 28-lead, 4mm × 5mm QFN package.  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. UltraFast is a trade mark of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
APPLICATIONS  
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FPGA and DSP Supplies  
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ASIC and Microprocessor Supplies  
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Servers and Storage Devices  
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Post Buck Regulation and Supply Isolation  
TYPICAL APPLICATION  
0.9V, 5A Regulator  
50k  
Dropout Voltage  
V
BIAS  
2.2V TO 3.6V  
PWRGD  
4
2.2μF  
BIAS  
V
IN  
1.2V  
3
IN  
EN  
V
PWRGD  
SENSE  
330μF  
V
0.9V  
5A  
OUT  
LT3070  
OUT  
O0  
2
2.2μF  
4.7μF  
10μF  
PLACE HOLDER  
V
O1  
V
O2  
MARGSEL  
MARGTOL  
VIOC  
1
0
REF/BYP  
GND  
1nF  
0.01μF  
3070 TA01a  
0
20  
30  
40  
10  
XXX  
LTXXXX • TPCXX  
3070p  
1

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