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MAX860MSA/PR3

更新时间： 2024-10-03 12:48:59
品牌 Logo 应用领域
美信 - MAXIM 转换器开关
页数 文件大小 规格书
11页 184K
描述
50mA, Frequency-Selectable, Switched-Capacitor Voltage Converters

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MAX860MSA/PR3 数据手册

 浏览型号MAX860MSA/PR3的Datasheet PDF文件第2页浏览型号MAX860MSA/PR3的Datasheet PDF文件第3页浏览型号MAX860MSA/PR3的Datasheet PDF文件第4页浏览型号MAX860MSA/PR3的Datasheet PDF文件第5页浏览型号MAX860MSA/PR3的Datasheet PDF文件第6页浏览型号MAX860MSA/PR3的Datasheet PDF文件第7页 
MAX860/MAX861  
50mA, Frequency-Selectable,  
Switched-Capacitor Voltage Converters  
_______________General Description  
____________________________Features  
The MAX860/MAX861 charge-pump voltage converters  
invert input voltages ranging from +1.5V to +5.5V, or  
double input voltages ranging from +2.5V to +5.5V.  
Because of their high switching frequencies, these  
devices use only two small, low-cost capacitors. Their  
50mA output makes switching regulators unnecessary,  
eliminating inductors and their associated cost, size,  
and EMI. Greater than 90% efficiency over most of the  
load-current range, combined with a typical operating  
current of only 200µA (MAX860), provides ideal perfor-  
mance for both battery-powered and board-level volt-  
age-conversion applications.  
o 8-Pin, 1.11mm High µMAX Package  
o Invert or Double the Input Supply Voltage  
o Three Selectable Switching Frequencies  
o High Frequency Reduces Capacitor Size  
o 87% Efficiency at 50mA  
o 200µA Quiescent Current (MAX860)  
o 1µA Shutdown Supply Current  
o 600mV Voltage Drop at 50mA Load  
o 12Ω Output Resistance  
A frequency-control (FC) pin provides three switching-  
frequencies to optimize capacitor size and quiescent  
current and to prevent interference with sensitive cir-  
cuitry. Each device has a unique set of three available  
———–  
______________Ordering Information  
frequencies. A shutdown (SHDN) pin reduces current  
consumption to less than 1µA. The MAX860/MAX861  
are suitable for use in applications where the ICL7660  
and MAX660's switching frequencies are too low. The  
PART  
MAX860ISA  
MAX860IUA  
MAX860C/D  
MAX860ESA  
MAX860MJA  
MAX860MSA/PR3  
MAX861ISA  
MAX861IUA  
MAX861C/D  
MAX861ESA  
MAX861MJA  
TEMP RANGE  
-25°C to +85°C  
-25°C to +85°C  
0°C to +70°C  
PIN-PACKAGE  
8 SO  
®
MAX860/MAX861 are available in 8-pin µMAX and  
8 µMAX  
Dice*  
SO packages.  
________________________Applications  
Portable Computers  
-40°C to +85°C  
-55°C to +125°C  
-55°C to +125°C  
-25°C to +85°C  
-25°C to +85°C  
0°C to +70°C  
8 SO  
8 CERDIP†  
8 SO  
Medical Instruments  
Interface Power Supplies  
Hand-Held Instruments  
Operational-Amplifier Power Supplies  
8 SO  
8 µMAX  
Dice*  
-40°C to +85°C  
-55°C to +125°C  
8 SO  
__________Typical Operating Circuit  
8 CERDIP†  
*Dice are tested at T = +25°C, DC parameters only.  
A
†Contact factory for availability.  
INPUT  
VOLTAGE  
+1.5V TO +5.5V  
1
2
8
7
MAX860  
MAX861  
FC  
V
DD  
C1+  
SHDN  
3
4
6
5
__________________Pin Configuration  
GND  
C1-  
LV  
INVERTED  
NEGATIVE  
OUTPUT  
C1 10μF  
OUT  
10μF  
C2  
TOP VIEW  
VOLTAGE INVERTER  
+
INPUT  
VOLTAGE  
+2.5V TO +5.5V  
FC  
C1+  
GND  
C1-  
V
DD  
1
2
3
4
8
7
6
5
DOUBLED  
POSITIVE  
OUTPUT  
1
2
3
4
8
7
6
5
MAX860  
MAX861  
FC  
V
DD  
MAX860  
MAX861  
SHDN  
LV  
C1+  
GND  
C1-  
SHDN  
10μF  
C2  
LV  
OUT  
C1  
10μF  
OUT  
SO/μMAX  
POSITIVE VOLTAGE DOUBLER  
µMAX is a registered trademark of Maxim Integrated Products, Inc.  
For pricing, delivery, and ordering information, please contact Maxim Direct  
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.  
19-0239; Rev 3; 8/13  
1234567...11

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