CAT660 Datasheet, PDF (1/15 Pages) Catalyst Semiconductor – 100mA CMOS Charge Pump Inverter/Doubler

CAT660
100 mA CMOS Charge Pump
Inverter/Doubler
Description
The CAT660 is a charge−pump voltage converter. It will invert a
1.5 V to 5.5 V input to a −1.5 V to −5.5 V output. Only two external
capacitors are needed. With a guaranteed 100 mA output current
capability, the CAT660 can replace a switching regulator and its
inductor. Lower EMI is achieved due to the absence of an inductor.
In addition, the CAT660 can double a voltage supplied from a
battery or power supply. Inputs from 2.5 V to 5.5 V will yield a
doubled, 5 V to 11 V output voltage.
A Frequency Control pin (BOOST/FC) is provided to select either a
high (80 kHz) or low (10 kHz) internal oscillator frequency, thus
allowing quiescent current vs. capacitor size trade−offs to be made.
The 80 kHz frequency is selected when the FC pin is 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 SOIC packages are available in the industrial
temperature range.
The CAT660 replaces the MAX660 and the LTC®660. In addition,
the CAT660 is pin compatible with the 7660/1044, offering an easy
upgrade for applications with 100 mA loads.
Features
• Replaces MAX660 and LTC®660
• Converts V+ to V− or V+ to 2V+
• Low Output Resistance, 4 W Typical
• High Power Efficiency
• Selectable Charge Pump Frequency
− 10 kHz or 80 kHz
− Optimize Capacitor Size
• Low Quiescent Current
• Pin−compatible, High−current Alternative to 7660/1044
• Industrial Temperature Range
• Available in 8−pin SOIC and DIP Packages
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Applications
• Negative Voltage Generator
• Voltage Doubler
• Voltage Splitter
• Low EMI Power Source
• GaAs FET Biasing
• Lithium Battery Power Supply
• Instrumentation
• LCD Contrast Bias
• Cellular Phones, Pagers
http://onsemi.com
SOIC−8
V SUFFIX
CASE 751BD
PDIP−8
L SUFFIX
CASE 646AA
PIN CONFIGURATION
1
BOOST/FC
V+
CAP+
OSC
GND
LV
CAP−
OUT
(Top View)
MARKING DIAGRAMS
660ELA
660EVA
660ELA = CAT660ELA
660EVA = CAT660EVA or
660EVA = CAT660EVA−T3
ORDERING INFORMATION
Device
Package Shipping
CAT660ELA
CAT660EVA
PDIP−8
(Pb−Free)
SOIC−8
(Pb−Free)
50 / Tube
100 / Tube
CAT660EVA−T3
SOIC−8
3,000 /
(Pb−Free) Tape & Reel
© Semiconductor Components Industries, LLC, 2010
1
May, 2010 − Rev. 24
Publication Order Number:
CAT660/D