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MAX660

更新时间： 2024-11-22 14:58:11
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亚德诺 - ADI /
页数 文件大小 规格书
12页 199K
描述
CMOS单片电压变换器

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MAX660 数据手册

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19-3293; Rev. 2; 9/96  
CMOS Monolithic Voltage Converter  
_______________General Description  
___________________________ Features  
♦ Small Capacitors  
♦ 0.65V Typ Loss at 100mA Load  
♦ Low 120µA Operating Current  
♦ 6.5Ω Typ Output Impedance  
The MAX660 monolithic, charge-pump voltage inverter  
converts a +1.5V to +5.5V input to a corresponding  
-1.5V to -5.5V output. Using only two low-cost  
capacitors, the charge pump’s 100mA output replaces  
switching regulators, eliminating inductors and their  
associated cost, size, and EMI. Greater than 90%  
efficiency over most of its load-current range combined  
with a typical operating current of only 120µA provides  
ideal performance for both battery-powered and board-  
level voltage conversion applications. The MAX660 can  
also double the output voltage of an input power supply  
or battery, providing +9.35V at 100mA from a +5V  
input.  
♦ Guaranteed R  
< 15Ω for C1 = C2 = 10µF  
OUT  
♦ Pin-Compatible High-Current ICL7660 Upgrade  
♦ Inverts or Doubles Input Supply Voltage  
♦ Selectable Oscillator Frequency: 10kHz/80kHz  
♦ 88% Typ Conversion Efficiency at 100mA  
(I to GND)  
L
A frequency control (FC) pin selects either 10kHz typ or  
80kHz typ (40kHz min) operation to optimize capacitor  
size and quiescent current. The oscillator frequency  
can also be adjusted with an external capacitor or  
driven with an external clock. The MAX660 is a pin-  
compatible, high-current upgrade of the ICL7660.  
______________Ordering Information  
PART  
TEMP. RANGE  
0°C to +70°C  
PIN-PACKAGE  
8 Plastic DIP  
8 SO  
MAX660CPA  
MAX660CSA  
MAX660C/D  
MAX660EPA  
MAX660ESA  
MAX660MJA  
0°C to +70°C  
0°C to +70°C  
Dice*  
The MAX660 is available in both 8-pin DIP and small-  
outline packages in commercial, extended, and military  
temperature ranges.  
-40°C to +85°C  
-40°C to +85°C  
-55°C to +125°C  
8 Plastic DIP  
8 SO  
8 CERDIP  
For 50mA applications, consider the MAX860/MAX861  
pin-compatible devices (also available in ultra-small  
µMAX packages).  
*Contact factory for dice specifications.  
_________Typical Operating Circuits  
________________________Applications  
Laptop Computers  
+V  
IN  
1.5V TO 5.5V  
Medical Instruments  
1
2
8
7
FC  
V+  
OSC  
LV  
Interface Power Supplies  
CAP+  
GND  
MAX660  
Hand-Held Instruments  
C1  
6
5
3
4
Operational-Amplifier Power Supplies  
INVERTED  
NEGATIVE  
VOLTAGE  
OUTPUT  
1µF to 150µF  
CAP-  
OUT  
__________________Pin Configuration  
C2  
1µF to 150µF  
VOLTAGE INVERTER  
TOP VIEW  
DOUBLED  
POSITIVE  
VOLTAGE  
OUTPUT  
1
2
8
7
V+  
FC  
1
2
3
4
8
7
6
5
FC  
CAP+  
GND  
V+  
C1  
1µF to 150µF  
C2  
1µF to 150µF  
CAP+  
GND  
OSC  
LV  
MAX660  
OSC  
6
5
3
4
MAX660  
+V  
IN  
LV  
2.5V TO 5.5V  
OUT  
CAP-  
CAP-  
OUT  
DIP/SO  
POSITIVE VOLTAGE DOUBLER  
________________________________________________________________ Maxim Integrated Products  
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800  
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