ICL828
TM
Data Sheet
June 2000
File Number
4835.1
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.
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 . . . . . . . . . . . . . . . . . . . . . . . . . . 60µA
Ordering Information
PART
NUMBER
ICL828IH-T
TEMP.
RANGE (
o
C)
-40 to 85
PACKAGE
PKG. NO BRAND
828
• Pin for Pin Compatible to MAX828
• Small Package Size
5 Lead SOT23 P5.064
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
Block Diagram
NEGATIVE VOLTAGE CONVERTER
OUTPUT
VOLTAGE
+
OUT
1
C1+
5
INPUT
VOLTAGE
2
IN
+
3
C1-
GND
4
Pinout
ICL828 (SOT23)
TOP VIEW
OUT
IN
C
1
-
1
2
3
5
C
1
+
4
GND
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
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Intersil Corporation 2000
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