© Semiconductor Components Industries, LLC, 2010

May, 2010 − Rev. 24

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Publication Order Number:

CAT660/D

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

− 10 kHz or 80 kHz

− Optimize Capacitor Size

Compliant

Applications

http://onsemi.com

PIN CONFIGURATION

SOIC−8

V SUFFIX

CASE 751BD

PDIP−8

L SUFFIX

CASE 646AA

(Top View)

V+

OSC

LV

OUT

BOOST/FC

CAP+

GND

CAP−

Device

Package

Shipping

ORDERING INFORMATION

CAT660EVA

SOIC−8

(Pb−Free)

100 / Tube

MARKING DIAGRAMS

CAT660EVA−T3

SOIC−8

(Pb−Free)

3,000 /

Tape & Reel

CAT660ELA

PDIP−8

(Pb−Free)

50 / Tube

660ELA

660EVA

660ELA = CAT660ELA

660EVA = CAT660EVA or

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