
1
TM
File Number
4835.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
Intersil and Design is a trademark of Intersil Corporation.
Copyright
Intersil Corporation 2000
ICL828
Switched-Capacitor Voltage Inverter
The ICL828 IC performs supply voltage conversions from
positive to negative for an input range of +1.5V to +5.5V
resulting in complementary output voltages of -1.5V to -5.5V.
The ICL828 has a 12kHz internal oscillator and requires two
capacitors to invert the supply voltage. Cascading may be
made to increase the output voltage. The high efficiency
(greater than 90% over most of the load-current range) and
low operating current (60
μ
A typical) make these devices
ideal for both battery-powered and board-level voltage
conversion applications.
Block Diagram
Features
5-Lead SOT23-5 Package
99% Open Circuit Voltage Conversion Efficiency
Inverts Input Supply Voltage
High Power Supply Efficiency
Input Voltage Range. . . . . . . . . . . . . . . . . .+1.5V to +5.5V
May be Cascaded to Increase Output Voltage
Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25mA
Quiescent Current . . . . . . . . . . . . . . . . . . . . . . . . . . 60
μ
A
Pin for Pin Compatible to MAX828
Small Package Size
Applications
Simple Conversion . . . . . . . . . . . . . . . . . . . . . +5V to -5V
Voltage Multiplication . . . . . . . . . . . . . . . . . .V
OUT
= -nV
IN
Supply Splitter
- Operational Amplifiers
- Bias Supplies
Hand Held Products
- Cell Phones
- PDAs
- GPS
- Pagers
LCD Panels
Pinout
ICL828 (SOT23)
TOP VIEW
Ordering Information
PART
NUMBER
TEMP.
RANGE (
o
C)
PACKAGE
PKG. NO
BRAND
ICL828IH-T
-40 to 85
5 Lead SOT23
P5.064
828
OUTPUT
VOLTAGE
VOLTAGE
+
GND
4
C1+
5
3
C1-
1
+
OUT
IN
2
INPUT
NEGATIVE VOLTAGE CONVERTER
C
1
+
GND
OUT
IN
C
1
-
1
2
3
4
5
Data Sheet
June 2000
Powered by ICminer.com Electronic-Library Service CopyRight 2003