Product Overview

Product Overview
CAT660: Charge Pump Voltage Converter
For complete documentation, see the data sheet
Product Description
The CAT660 is a charge-pump voltage converter. It will invert a 1.5V to 5.5V input to a -1.5V to -5.5V output. Only two external
capacitors are needed. With a guaranteed 100mA 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 2.5V to 5.5V will yield a doubled,
5V to 11V output voltage.
A Frequency Control pin (BOOST/FC) is provided to select either a high (80kHz) or low (10kHz) internal oscillator frequency, thus
allowing quiescent current vs. capacitor size trade-offs to be made. The 80kHz 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.
8-pin SOIC package is 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 100mA loads.
Features
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Replaces MAX660 and LTC®660
Converts V+ to V- or V+ to 2V+
Low output resistance, 4Ω typical
High power efficiency
Selectable charge pump frequency
- 10kHz or 80kHz
- Optimize capacitor size
Low quiescent current
Pin-compatible, high-current alternative to 7660/1044
Industrial temperature range
Available in 8-pin SOIC package
- Lead-free, halogen-free package option
Applications
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Negative voltage generator
Voltage doubler
Voltage splitter
Low EMI power source
GaAs FET biasing
Part Electrical Specifications
Product
CAT660EVA-GT3
Compliance
Status
Vin Typ (V)
Vout Typ (V)
Iout Typ (mA)
ICC Max (µA)
fOSC Typ (kHz) Shutdown Pin
Package Type
Pb-free
Active
3.0 to 5.5
-Vin or 2Vin
100
3000
80
SOIC-8
Halide free
For more information please contact your local sales support at www.onsemi.com
Created on: 6/30/2016
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