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LT3028IFE

更新时间： 2024-11-21 05:43:31
品牌 Logo 应用领域
凌特 - Linear 线性稳压器IC调节器电源电路光电二极管输出元件
页数 文件大小 规格书
16页 336K
描述
Dual 100mA/500mA Low Dropout, Low Noise,Micropower Regulators with Independent Inputs

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LT3028IFE 技术参数

是否Rohs认证：不符合生命周期：Transferred
零件包装代码：TSSOP包装说明：HTSSOP, TSSOP16,.25
针数：16Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.09Is Samacsys：N
可调性：ADJUSTABLE最大回动电压 1：0.45 V
最大回动电压 2：0.47 VJESD-30 代码：R-PDSO-G16
JESD-609代码：e0长度：5 mm
最大电网调整率 (%/V)：0.046湿度敏感等级：1
功能数量：1输出次数：2
端子数量：16工作温度TJ-Max：125 °C
工作温度TJ-Min：-40 °C最大输出电流 1：0.1 A
最大输出电流 2：0.5 A最大输出电压 1：20 V
最小输出电压 1：1.22 V最大输出电压 2：20 V
最小输出电压 2：1.22 V封装主体材料：PLASTIC/EPOXY
封装代码：HTSSOP封装等效代码：TSSOP16,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：235认证状态：Not Qualified
调节器类型：ADJUSTABLE POSITIVE MULTIPLE OUTPUT LDO REGULATOR座面最大高度：1.1 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：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：20
宽度：4.4 mmBase Number Matches：1

LT3028IFE 数据手册

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LT3028  
Dual 100mA/500mA  
Low Dropout, Low Noise,  
Micropower Regulators with  
Independent Inputs  
U
FEATURES  
DESCRIPTIO  
The LT®3028 is a dual, micropower, low noise, low drop-  
out regulator with independent inputs. With an external  
0.01µF bypass capacitor, output noise is a low 20µVRMS  
over a 10Hz to 100kHz bandwidth. Designed for use in  
battery-poweredsystems, thelow30µAquiescentcurrent  
per output makes it an ideal choice. In shutdown, quies-  
cent current drops to less than 0.1µA. Shutdown control  
is independent for each output, allowing for flexibility in  
power management. The device is capable of operating  
over an input voltage range of 1.8V to 20V. Output 1 can  
supply 500mA of output current with a dropout voltage of  
320mV. The device can supply 100mA of output current  
fromOutput2withadropoutvoltageof300mV. Quiescent  
current is well controlled in dropout.  
■
Low Noise: 20µVRMS (10Hz to 100kHz)  
■
Low Quiescent Current: 30µA/Output  
■
Independent Inputs  
■
Wide Input Voltage Range: 1.8V to 20V  
■
Output Current: 100mA/500mA  
■
Very Low Shutdown Current: <0.1µA  
■
Low Dropout Voltage: 300mV/320mV at  
100mA/500mA  
■
■
■
Adjustable Outputs from 1.22V to 20V  
Stable with as Low as 1µF/3.3µF Output Capacitor  
Stable with Aluminum, Tantalum or  
Ceramic Capacitors  
■
■
■
■
■
Reverse-Battery Protected  
No Protection Diodes Needed  
Overcurrent and Overtemperature Protected  
Tracking/Sequencing Capability  
Thermally Enhanced 16-Lead TSSOP and 16-Lead  
(5mm × 3mm) DFN Packages  
U
The LT3028 regulator is stable with output capacitors as  
low as 1µF for the 100mA output and 3.3µF for the 500mA  
output. Small ceramic capacitors can be used without the  
series resistance required by other regulators.  
Internal protection circuitry includes reverse-battery pro-  
tection, current limiting and thermal limiting protection.  
Thedeviceisavailableasanadjustabledevicewitha1.22V  
reference voltage. The LT3028 regulator is available in the  
thermally enhanced 16-lead TSSOP and 16-lead, low  
profile (5mm × 3mm × 0.75mm) DFN packages.  
APPLICATIO S  
■
Cellular Phones  
Pagers  
■
■
Battery-Powered Systems  
■
Frequency Synthesizers  
■
Wireless Modems  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
Protected by U.S. Patents including 6118263, 6144250.  
■
Tracking/Sequencing Power Supplies  
U
TYPICAL APPLICATIO  
10Hz to 100kHz Output Noise  
3.3V/2.5V Low Noise Regulators  
3.3V AT 500mA  
20µV NOISE  
OUT1  
IN1  
RMS  
V
IN1  
0.01µF  
10µF  
10µF  
3.7V TO  
20V  
1µF  
SHDN1  
422k  
249k  
BYP1  
ADJ1  
V
OUT  
100µV/DIV  
20µV  
RMS  
LT3028  
2.5V AT 100mA  
20µV NOISE  
OUT2  
RMS  
IN2  
V
0.01µF  
IN2  
261k  
2.9V TO  
20V  
1µF  
SHDN2  
BYP2  
ADJ2  
3028 TA01b  
GND  
249k  
3028 TA01a  
3028f  
1
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