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CAT661EXA

更新时间： 2024-09-26 18:34:47
品牌 Logo 应用领域
CATALYST 光电二极管
页数 文件大小 规格书
15页 166K
描述
Switched Capacitor Converter, CMOS, PDSO8, 0.150 INCH, LEAD AND HALOGEN FREE, SO-8

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中文翻译

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CAT661EXA 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：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.12模拟集成电路 - 其他类型：SWITCHED CAPACITOR CONVERTER
最大输入电压：5.5 V最小输入电压：1.5 V
标称输入电压：5 VJESD-30 代码：R-PDSO-G8
JESD-609代码：e3长度：4.9 mm
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：Matte 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：40
宽度：3.9 mmBase Number Matches：1

CAT661EXA 数据手册

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Advance Information  
E
CAT661  
High Frequency 100mA CMOS Charge Pump, Inverter/Doubler  
TM  
FEATURES  
■ Converts V+ to V- or V+ to 2V+  
■ Low output resistance, 10Ω max.  
■ High power efficiency  
■ Pin-compatible to MAX660, LTC660  
- Higher frequency operation  
■ Available in 8-pin SOIC, DIP and 0.8mm thin  
8-pad TDFN packages  
■ Selectable charge pump frequency  
- 25kHz or 135kHz  
- Lead-free, halogen-free package option  
- Optimize capacitor size  
■ Low quiescent current  
APPLICATIONS  
■ Negative voltage generator  
■ Voltage doubler  
■ Low EMI power source  
■ Instrumentation  
■ GaAs FET biasing  
■ LCD contrast bias  
■ Voltage splitter  
■ Lithium battery power supply  
■ Cellular phones, pagers  
DESCRIPTION  
The CAT661 is a charge-pump voltage converter. It will  
inverta1.5Vto5.5Vinputtoa-1.5Vto-5.5Voutput.Only  
two external capacitors are needed. With a guaranteed  
100mAoutputcurrentcapability,theCAT661canreplace  
a switching regulator and its inductor. Lower EMI is  
achieved due to the absence of an inductor.  
connected to V+. The operating frequency can also be  
adjusted with an external capacitor at the OSC pin or by  
driving OSC with an external clock.  
Both 8-pin DIP and SO packages are available in the  
commercialandextendedindustrialtemperatureranges.  
The TDFN package has a 4x4mm footprint and features  
a 0.8mm maximum height. Compared to the 8-pin SO  
the TDFN package footprint is nearly 50% less. For die  
availability, contact Catalyst Semiconductor marketing.  
In addition, the CAT661 can double a voltage supplied  
from a battery or power supply. Inputs from 2.5V to 5.5V  
will yield a doubled, 5V to 11V output.  
A Frequency Control pin (BOOST/FC) is provided to  
select either a high (typically 135kHz) or low (25kHz)  
internal oscillator frequency, thus allowing quiescent  
current vs. capacitor size trade-offs to be made. The  
135kHz frequency is selected when the FC pin is  
TheCAT661canreplacetheMAX660andtheLTC 660  
in applications where higher oscillator frequency and  
smaller capacitors are needed. In addition, the CAT661  
is pin compatible with the 7660/1044, offering an easy  
upgrade for applications with 100mA loads.  
TYPICAL APPLICATION  
+V  
IN  
1.5V to 5.5V  
Doubled  
Positive  
Voltage  
Output  
1
2
3
4
BOOST/FC  
CAP+  
V+  
OSC  
LV  
8
7
6
5
1
2
3
4
BOOST/FC  
CAP+  
V+  
OSC  
LV  
8
7
6
5
C1  
CAT  
661  
CAT  
661  
+
C1  
Inverted  
Negative  
Voltage  
Output  
+
GND  
CAP-  
GND  
CAP-  
V
= 2.5V to 5.5V  
IN  
OUT  
OUT  
VOLTAGE INVERTER  
POSITIVE VOLTAGE DOUBLER  
© 2003 by Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
Doc. No. 5003, Rev. F  
1
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