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Datasheet > LTC1502IS8-3.3#PBF
LTC1502IS8-3.3#PBF PDF预览

LTC1502IS8-3.3#PBF

更新时间： 2024-02-18 00:30:46
品牌 Logo 应用领域
凌特 - Linear 光电二极管
页数 文件大小 规格书
8页 169K
描述
LTC1502-3.3 - Single Cell to 3.3V Regulated Charge Pump DC/DC Converter; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C

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LTC1502IS8-3.3#PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：SOIC包装说明：SOP,
针数：8Reach Compliance Code：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：e3
长度：4.9 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
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.75 mm表面贴装：YES
切换器配置：DOUBLER INVERTER技术：CMOS
温度等级：INDUSTRIAL端子面层：Tin (Sn)
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：30
宽度：3.9 mmBase Number Matches：1

LTC1502IS8-3.3#PBF 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
12345678

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