LTC1044A

Supply Voltage ........................................................ 13V
Input Voltage on Pins 1, 6 and 7
(Note 2) .............................. 0.3V < VIN < V+ + 0.3V
Current into Pin 6 ................................................. 20mA
Output Short-Circuit Duration
V+ £ 6.5V .................................................Continuous
Operating Temperature Range
LTC1044AC ............................................ 0°C to 70°C
LTC1044AI ........................................ 40°C to 85°C
Storage Temperature Range ................ 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C

The LTC1044A is a monolithic CMOS switched-capacitor voltage converter. It plugs in for ICL7660/LTC1044 in
applications where higher input voltage (up to 12V) needed. The LTC1044A provides several conversion functions without using inductors. The input voltage can be inverted (VOUT = VIN), doubled (VOUT = 2VIN), divided
(VOUT = VIN/2) or multiplied (VOUT = ±nVIN).

To optimize performance in specific applications, a boost function is available to raise the internal oscillator frequency by a factor of 7. Smaller external capacitors can be used in higher frequency operation to save board space. The internal oscillator of LTC1044A can also be disabled to save power. The supply current drops to 1.5mA at 5V input when the OSC pin is tied to GND or V +.