NCP7662 Datasheet, PDF (1/12 Pages) ON Semiconductor – INDUCTORLESS VOLTAGE CONVERTER

NCP7662
Inductorless Voltage
Converter
The NCP7662 is a pin–compatible upgrade to the industry standard
TC7660 charge pump voltage converter. It converts a +1.5 V to +15 V
input to a corresponding –1.5 to –15 V 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 10 kHz.
Frequency is increased to 35 kHz when pin 1 is connected to V+,
allowing the use of smaller external capacitors. Operation below 10 kHz
(for lower supply current applications) is also possible by connecting an
external capacitor from OSC to ground (with pin 1 open).
The NCP7662 is available in both 8–pin DIP and 8–pin small outline
(SO) packages in commercial and extended temperature ranges.
Features
• Wide Operating Voltage Range: 1.5 V to 15 V
• Boost Pin (Pin 1) for Higher Switching Frequency
• High Power Efficiency is 96%
• Easy to Use – Requires Only 2 External Non–Critical Passive
Components
• Improved Direct Replacement for Industry Standard ICL7660 and
Other Second Source Devices
Applications
" • Simple Conversion of +5 V to 5 V Supplies
" • Voltage Multiplication VOUT = nVIN
• Negative Supplies for Data Acquisition Systems and Instrumentation
" ^{• RS232 Power Supplies}
• Supply Splitter, VOUT = VS/2
http://onsemi.com
8
1
SO–8
D SUFFIX
CASE 751
MARKING
DIAGRAMS
8
NCP
7662
YWWXZ
1
8
1
PDIP–8
P SUFFIX
CASE 626
8
NCP7662
YYWWXZ
CO
1
YY, Y
WW
X
Z
CO
= Year
= Work Week
= Assembly ID Code
= Subcontractor ID Code
= Country of Orgin
PIN CONNECTIONS
BOOST 1
CAP+ ²
GND 3
CAP– 4
8 V+
7 OSC
6
LOW
VOLTAGE (LV)
5 VOUT
ORDERING INFORMATION
Device
Package
Shipping
NCP7662DR2
SO–8 2500 Tape & Reel
NCP7662P
PDIP–8
50 Units/Rail
© Semiconductor Components Industries, LLC, 2000
1
June, 2000 – Rev. 0
Publication Order Number:
NCP7662/D