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LTC1502IS8-3.3 PDF预览

LTC1502IS8-3.3

更新时间: 2024-02-18 06:20:07
品牌 Logo 应用领域
凌特 - Linear 转换器
页数 文件大小 规格书
8页 165K
描述
Single Cell to 3.3V Regulated Charge Pump DC/DC Converter

LTC1502IS8-3.3 技术参数

是否Rohs认证: 不符合生命周期:Transferred
零件包装代码:SOIC包装说明:0.150 INCH, PLASTIC, SOP-8
针数:8Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.16模拟集成电路 - 其他类型:SWITCHED CAPACITOR REGULATOR
最大输入电压:1.8 V最小输入电压:0.9 V
JESD-30 代码:R-PDSO-G8JESD-609代码:e0
长度:4.9025 mm湿度敏感等级:1
功能数量:1端子数量:8
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:0.01 A标称输出电压:3.3 V
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP8,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):235
认证状态:Not Qualified座面最大高度:1.752 mm
子类别:Other Analog ICs表面贴装:YES
切换器配置:DOUBLER INVERTER最大切换频率:500 kHz
技术:CMOS温度等级:INDUSTRIAL
端子面层:Tin/Lead (Sn/Pb)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:20宽度:3.899 mm
Base Number Matches:1

LTC1502IS8-3.3 数据手册

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LTC1502-3.3  
Single Cell to 3.3V  
Regulated Charge Pump  
DC/DC Converter  
U
FEATURES  
DESCRIPTIO  
The LTC®1502-3.3 is a quadrupler charge pump DC/DC  
converter that produces a regulated 3.3V output from a  
singlealkalinecellinput. Itrequiresonlyfivesmallexternal  
capacitors—no inductors are required. Low supply cur-  
rent(40µAtypical, 5µAinshutdown)andminimalexternal  
components make the LTC1502-3.3 ideal for space and  
powerconscioussingle-cellapplications.Thetotalprinted  
circuit board area of the circuit shown below is less than  
0.125in2.  
Forcing the C1/SHDN pin low through an external resis-  
tive pull-down puts the part into shutdown mode. During  
shutdown, the internal oscillator is stopped and the load is  
disconnected from VIN. An internal pull-up current on the  
C1/SHDN pin forces the part back into normal operation  
once the pull-down resistance is removed.  
Input Voltage Range: 0.9V to 1.8V  
0.9V Guaranteed Start-Up Voltage  
Regulated Output Voltage: 3.3V ±4%  
Output Current: 10mA (VIN 1V)  
No Inductors  
Shutdown Disconnects Load from VIN  
Low Operating Current: 40µA  
Low Shutdown Current: 5µA  
Short-Circuit and Overtemperature Protected  
Application Circuit Fits in <0.125in2 PCB Area  
Available in 8-Pin MSOP and SO Packages  
U
APPLICATIO S  
Pagers  
Battery Backup Supplies  
The LTC1502-3.3 is short-circuit protected and survives  
an indefinite VOUT short to ground. The LTC1502-3.3 is  
available in 8-pin MSOP and SO packages.  
Portable Electronic Equipment  
Handheld Medical Instruments  
Glucose Meters  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
Single Cell to 3.3V DC/DC Converter  
Output Voltage vs Input Voltage  
3.5  
T = 25°C  
A
1
2
8
7
V
= 3.3V  
OUT  
OUT  
C2  
C1  
V
OUT  
+
I
= 10mA  
10µF  
10µF  
+
C3  
3.4  
3.3  
3.2  
3.1  
3.0  
1µF  
LTC1502-3.3  
C1 /SHDN C3  
1µF  
3
4
6
5
V
IN  
GND  
V
IN  
SINGLE CELL  
NiCd or  
ALKALINE  
10µF  
I
I
= 10mA  
= 15mA  
OUT  
OUT  
1502-3.3 TA01  
PCB LAYOUT FITS IN <0.125IN2  
0.8  
1.0  
1.2  
1.4  
1.6  
1.8  
INPUT VOLTAGE (V)  
1502-3.3 TA02  
1

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