ICL7660S, ICL7660A: Super Voltage Converters
The ICL7660S and ICL7660A Super Voltage Converters are monolithic CMOS voltage conversion ICs that guarantee significant performance advantages over other similar devices. They are direct replacements for the industry standard ICL7660 offering an extended operating supply voltage range up to 12V, with lower supply current. A Frequency Boost pin has been incorporated to enable the user to achieve lower output impedance despite using smaller capacitors. All improvements are highlighted in the “Electrical Specifications” section on page 3. Critical parameters are guaranteed over the entire commercial and industrial temperature ranges.
The ICL7660S and ICL7660A perform supply voltage conversions from positive to negative for an input range of 1.5V to 12V, resulting in complementary output voltages of -1.5V to -12V. Only two non-critical external capacitors are needed, for the charge pump and charge reservoir functions. The ICL7660S and ICL7660A can be connected to function as a voltage doubler and will generate up to 22.8V with a 12V input. They can also be used as a voltage multipliers or voltage dividers.
Each chip contains a series DC power supply regulator, RC oscillator, voltage level translator, and four output power MOS switches. The oscillator, when unloaded, oscillates at a nominal frequency of 10kHz for an input supply voltage of 5.0V. This frequency can be lowered by the addition of an external capacitor to the “OSC” terminal, or the oscillator may be over-driven by an external clock.
The “LV” terminal may be tied to GND to bypass the internal series regulator and improve low voltage (LV) operation. At medium to high voltages (3.5V to 12V), the LV pin is left floating to prevent device latchup.
In some applications, an external Schottky diode from VOUT to CAP- is needed to guarantee latchup free operation
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Features
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Applications
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| Image | Part # | Manufacturer | Description | Stock | Price | Buy |
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CTS Electronic Components
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XTAL OSC XO 159.3750MHZ LVPECL
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73782
Min : 1000
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-
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Detail | |
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Silicon Labs
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XTAL OSC VCXO 125.0000MHZ LVDS
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69340
Min : 50
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-
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Detail | |
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Taitien
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XTAL OSC VCTCXO 20.0000MHZ SNWV
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52589
Min : 100
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-
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Detail | |
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SiTime
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OSC PROGRAMMABLE DCTCXO
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56210
Min : 1
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-
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Detail | |
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Silicon Labs
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XTAL OSC XO 156.2500MHZ LVDS SMD
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63549
Min : 1000
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-
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Detail | |
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SiTime
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OSC DCTCXO PROGRAMMABLE
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71836
Min : 1
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-
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Detail | |
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SiTime
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MEMS OSC PROG XO LVPECL CS 3.3V
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76115
Min : 1
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-
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Detail | |
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SiTime
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OSC DCTCXO PROGRAMMABLE
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71716
Min : 1
|
-
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Detail | |
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SiTime
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MEMS OSC XO 166.6666MHZ LVDS SMD
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70213
Min : 1
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-
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Detail | |
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SiTime
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OSC PROGRAMMABLE DCTCXO
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76654
Min : 1
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-
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Detail | |
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Taitien
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XTAL OSC VCTCXO 26.0000MHZ SNWV
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50971
Min : 100
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-
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Detail | |
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SiTime
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OSC PROGRAMMABLE DCTCXO
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58412
Min : 1
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-
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Detail | |
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Silicon Labs
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XTAL OSC XO 20.0000MHZ LVDS SMD
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61393
Min : 50
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-
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Detail | |
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SiTime
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MEMS OSC PROG XO LVCMOS 3V 20PPM
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59739
Min : 1
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-
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Detail | |
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Samtec Inc
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CONN HEADER VERT 10POS 2.54MM
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76065
Min : 1
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-
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Detail | |
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CTS Electronic Components
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XTAL OSC XO 100.0000MHZ LVPECL
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54159
Min : 1000
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-
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Detail | |
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Abracon Corporation
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XTAL OSC XO 933.1200MHZ LVDS SMD
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70623
Min : 50
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-
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Detail |