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LTC3035EDDB#TR

更新时间： 2024-09-25 20:48:03
品牌 Logo 应用领域
凌特 - Linear 光电二极管输出元件调节器
页数 文件大小 规格书
12页 198K
描述
LTC3035 - 300mA VLDO Linear Regulator with Charge Pump Bias Generator; Package: DFN; Pins: 8; Temperature Range: -40°C to 85°C

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中文翻译

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LTC3035EDDB#TR 技术参数

是否Rohs认证： 不符合生命周期：Transferred
零件包装代码：DFN包装说明：HVSSON, SOLCC8,.08,20
针数：8Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.19可调性：ADJUSTABLE
最大回动电压 1：0.1 V标称回动电压 1：0.045 V
JESD-30 代码：R-PDSO-N8JESD-609代码：e0
长度：3 mm湿度敏感等级：1
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最大输出电流 1：0.3 A
最大输出电压 1：3.6 V最小输出电压 1：0.4 V
封装主体材料：PLASTIC/EPOXY封装代码：HVSSON
封装等效代码：SOLCC8,.08,20封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE, SHRINK PITCH包装方法：TAPE AND REEL
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：CMOS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：DUAL处于峰值回流温度下的最长时间：20
宽度：2 mmBase Number Matches：1

LTC3035EDDB#TR 数据手册

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LTC3035  
300mA VLDO Linear  
Regulator with Charge Pump  
Bias Generator  
U
DESCRIPTIO  
FEATURES  
The LTC®3035 is a micropower, VLDO™ (very low drop-  
out)linearregulatorwhichoperatesfrominputvoltagesas  
low as 1.7V. The device is capable of supplying 300mA of  
output current with a typical dropout voltage of only  
45mV.ToallowoperationatlowinputvoltagestheLTC3035  
includes a charge pump generator that provides the nec-  
essary bias voltage for the internal LDO circuitry. Output  
current comes directly from the input supply for high  
efficiency regulation. The charge pump bias generator  
requires only a 0.1µF flying capacitor and a 1µF bypass  
capacitor for operation. The low 0.4V internal reference  
voltage allows the LTC3035 to be programmed to much  
lower output voltages than commonly available in LDOs.  
The output voltage is programmed via two tiny SMD  
resistors. The LTC3035’s low quiescent current makes it  
an ideal choice for use in battery-powered systems.  
■
Wide Input Voltage Range: 1.7V to 5.5V  
■
Wide Adjustable Output Voltage Range:  
0.4V to 3.6V  
■
Built-In Charge Pump Generates High Side Bias  
■
Very Low Dropout: 45mV at 300mA  
■
±
2% Voltage Accuracy Over Temperature,  
Supply, Load  
■
■
■
■
■
■
■
■
Fast Transient Recovery  
Low Operating Current: IIN = 100µA Typ  
Low Shutdown Current: IIN = 1µA Typ  
Stable with Ceramic Capacitor Down to 1µF  
Output Current Limit  
Thermal Overload Protected  
Reverse Output Current Protected  
Available in 8-Lead (3mm × 2mm) DFN Package  
U
APPLICATIO S  
Other features include high output voltage accuracy, ex-  
cellent transient response, stability with ultralow ESR  
ceramic capacitors as small as 1µF, short-circuit and  
thermal overload protection, output current limiting and  
reverse output current protection. The LTC3035 is avail-  
able in a tiny, low profile (3mm × 2mm × 0.75mm) 8-lead  
DFN package.  
■
Li-Ion to 3.3V Low Dropout Supplies  
■
2 × AA to 1.8V Low Dropout Supplies  
■
Low Power Handheld Devices  
■
Low Voltage Logic Supplies  
■
DSP Power Supplies  
Cellular Phones  
■
■
Portable Electronic Equipment  
Handheld Medical Instruments  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
VLDO is a trademark of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
Protected by U.S. Patents, including 6411531, others pending.  
■
■
Post Regulator for Switching Supply Noise Rejection  
U
TYPICAL APPLICATIO  
Dropout Voltage vs Load Current  
70  
3.3V Output Voltage from Li-Ion Battery  
T
A
= 25°C  
0.1µF  
60  
50  
40  
30  
20  
10  
0
CM  
CP  
BIAS  
BIAS  
GENERATOR  
C
1µF  
BIAS  
IN  
Li-Ion  
BATTERY  
+
–
0.4V  
1µF  
V
3.3V  
OUT 300mA  
OUT  
3.4V TO 4.2V  
OUT  
ADJ  
C
1µF  
294k  
LTC3035  
GND  
SHDN  
OFF ON  
40.2k  
0
50  
100  
150  
(mA)  
OUT  
200  
250  
300  
3035 TA01b  
I
3035 TA01a  
3035f  
1
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中文翻译

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