SP6661
DESCRIPTION
The SP6661 is a CMOS DC-DC Monolithic Voltage Converter that can be implemented as a Voltage Inverter or a Positive Voltage Doubler. As a Voltage Inverter, a -1.5V to -5.0V output can be converted from a +1.5V to +5.0V input. As a Voltage Doubler, a +5.0V to +10.0V output can be provided from a +2.5V to +5.0V input. The SP6661 is ideal for both battery-powered and board level voltage conversion applications with a typical operating current of 3m A and a high efficiency (>90%) over most of its load-current range. Typical end products for this device are disk drive supplies, operational amplifier and interface power supplies, medical instruments, and hand held and laptop puters. The SP6661 is available in 8-pin NSOIC, and µSOIC packages.
+VIN +2.5V to +5.0V
®
FC CAP+ GND C1 1µF to 22µF CAP-
+V 8
+VIN +1.5V to +5.0V C3 1µF to 22µF
2 3
7 6
OSC LV
C3 1µF to 22µF FC CAP+ 1
®
+V 8
DOUBLE NEGATIVE VOLTAGE OUTPUT
INVERTED NEGATIVE VOLTAGE OUTPUT
2...
