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
•
Converts +5V Supply to –5V Supply
•
Wide Input Voltage Range: 1.5V to 10V
•
Efficient Voltage Conversion: 99.9%
•
Excellent Power Efficiency: 98%
•
Low Power Supply: 80µA @ 5VIN
•
Low Cost and Easy to Use
– Only Two External Capacitors Required
•
Available in Small Outline (SO) Package
•
ESD Protection:
≥
2.5kV
•
No Dx Diode Required for High Voltage Operation
Typical Applications
•
RS–232 Negative Bias
•
Display Bias
•
Data Aquisition Negative Supply Generation
Device
MC7660DR2
http://onsemi.com
SO–8
D SUFFIX
CASE 751
PIN CONFIGURATION
(Top View)
NC
1
CAP+
2
GND
3
CAP–
4
8
V+
7
OSC
6
LV
5
VOUT
ORDERING INFORMATION
Package
8–Pin SOIC
Shipping
2500 Tape/Reel
FUNCTIONAL BLOCK DIAGRAM
V+ CAP+
8
2
OSC
LV
7
6
RC
OSCILLATOR
B
2
VOLTAGE–
LEVEL
TRANSLATOR
4
CAP–
5
INTERNAL
VOLTAGE
REGULATOR
VOUT
MC7660
3
GND
LOGIC
NETWORK
©
Semiconductor Components Industries, LLC, 1999
1
February, 2000 – Rev. 2
Publication Order Number:
MC7660/D
ONSEMI [ ON SEMICONDUCTOR ]
