© Semiconductor Components Industries, LLC, 1999

February, 2000 – Rev. 2

1

Publication Order Number:

MC7660/D

MC7660

Charge Pump DC-to-DC

Voltage Converter

The MC7660 is a pin–compatible replacement for the Industry

standard ICL7660 charge pump voltage converter. It converts a +1.5V

to +10V input to a corresponding –1.5V to –10V output using only two

low–cost capacitors, eliminating inductors and their associated cost,

size and EMI.

The on–board oscillator operates at a nominal frequency of 10kHz.

Operation below 10kHz (for lower supply current applications) is

possible by connecting an external capacitor from OSC to ground

(with pin 1 open).

The MC7660 is available in an 8–pin SOIC package in extended

temperature range.

Features

– Only Two External Capacitors Required

Typical Applications

FUNCTIONAL BLOCK DIAGRAM

RC

LV

OSC

OSCILLATOR

7

6

INTERNAL

VOLTAGE

REGULATOR

VOLTAGE–

LEVEL

TRANSLATOR

LOGIC

NETWORK

GND

3

4

5

2

8

V+ CAP+

CAP–

VOUT

MC7660

B2

SO–8

D SUFFIX

CASE 751

http://onsemi.com

Device

Package

Shipping

ORDERING INFORMATION

MC7660DR2

8–Pin SOIC

2500 Tape/Reel

PIN CONFIGURATION

(Top View)

1

2

3

4

8

7

6

5

NC

CAP+

GND

CAP–

V+

OSC

LV

VOUT