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LTC3240EDC-2.5#TRMPBF PDF预览

LTC3240EDC-2.5#TRMPBF

更新时间: 2024-11-05 13:09:47
品牌 Logo 应用领域
凌特 - Linear 转换器稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
12页 204K
描述
LTC3240 - 3.3V/2.5V Step-Up/Step-Down Charge Pump DC/DC Converter; Package: DFN; Pins: 6; Temperature Range: -40°C to 85°C

LTC3240EDC-2.5#TRMPBF 技术参数

是否Rohs认证: 符合生命周期:Transferred
零件包装代码:DFN包装说明:HVSON,
针数:6Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:7.07模拟集成电路 - 其他类型:SWITCHED CAPACITOR REGULATOR
最大输入电压:5.5 V最小输入电压:1.8 V
标称输入电压:2.4 VJESD-30 代码:S-PDSO-N6
JESD-609代码:e3长度:2 mm
湿度敏感等级:1功能数量:1
端子数量:6最高工作温度:85 °C
最低工作温度:最大输出电流:0.45 A
封装主体材料:PLASTIC/EPOXY封装代码:HVSON
封装形状:SQUARE封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:0.8 mm表面贴装:YES
切换器配置:DOUBLER INVERTER最大切换频率:1800 kHz
温度等级:COMMERCIAL EXTENDED端子面层:Tin (Sn)
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:30
宽度:2 mmBase Number Matches:1

LTC3240EDC-2.5#TRMPBF 数据手册

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LTC3240-3.3/LTC3240-2.5  
3.3V/2.5V Step-Up/  
Step-Down Charge Pump  
DC/DC Converter  
U
DESCRIPTIO  
FEATURES  
®
Step-Up/Step-Down Charge Pumps Generate Fixed  
The LTC 3240-3.3/LTC3240-2.5 are step-up/step-down  
3.3V or 2.5V Outputs  
IN  
Output Current up to 150mA  
Automatic Mode Switching  
Constant Frequency (1.2MHz) Operation in  
Step-Up Mode  
Low Dropout Regulator Operation in  
Step-Down Mode  
Low No-Load Quiescent Current: I = 65µA  
Built-In Soft-Start Reduces Inrush Current  
Shutdown Disconnects Load from Input  
Shutdown Current < 1µA  
charge pump DC/DC converters that produce a fixed  
regulated output voltage of 3.3V or 2.5V over a wide input  
voltage range (1.8V to 5.5V).  
V Range: 1.8V to 5.5V  
With input voltages greater than the regulated output  
voltage the LTC3240 operates as a low dropout regulator.  
Oncetheinputvoltagedropswithin100mVoftheregulated  
output voltage the part automatically switches to step-up  
mode.Instep-upmodetheLTC3240operatesasaconstant  
frequency (1.2MHz) doubling charge pump.  
Q
TheLTC3240-3.3/LTC3240-2.5featurelownoloadoperat-  
ing current (65µA typical) and ultralow operating current  
in shutdown (<1µA). Built-in soft-start circuitry prevents  
excessive inrush current during start-up. Thermal shut-  
down and current-limit circuitry allow the parts to survive  
Short-Circuit/Thermal Protection  
Available in a 6-Lead (2mm × 2mm) DFN Package  
U
a continuous short-circuit from V  
to GND.  
OUT  
APPLICATIO S  
The LTC3240-3.3/LTC3240-2.5 require only three tiny  
external ceramic capacitors for an ultrasmall application  
footprint.TheLTC3240-3.3/LTC3240-2.5areavailableina  
6-pin (2mm × 2mm) DFN package.  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
Protected by U.S. Patents including 6411531.  
2 AA to 2.5V  
2-3 AA/Li-Ion to 3.3V  
Low Power Supplies for Cameras, I/O Supplies,  
Audio, PC Cards, Misc. Logic, etc., in a Wide Variety  
of Handheld Products  
U
TYPICAL APPLICATIO  
Output Voltage vs Input Voltage (Full Range)  
Li-Ion to 3.3V at Up to 150mA  
3.50  
I
= 30mA  
OUT  
1µF  
3.45  
3.40  
3.35  
3.30  
3.25  
3.20  
3.15  
3.10  
+
C
C
IN  
3.3V  
V
V
2.7V TO 4.5V  
OUT  
I
= 150mA  
OUT  
Li-Ion OR  
3-CELL NiMH  
1µF  
LTC3240-3.3  
GND  
4.7µF  
OFF ON  
SHDN  
3240 TA01a  
3.7 4.2  
INPUT VOLTAGE (V)  
1.7 2.2 2.7 3.2  
4.7 5.2 5.7  
3240 TA01b  
3240fb  
1

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