LTC1044CN8#PBF

LTC1044 is a monolithic CMOS switched capacitor voltage converter which is manufactured using Analog Devices’ enhanced LTCMOS™ silicon gate process. Designed to be pin-for-pin and functionally compatible with the popular 7660, this device provides significant features and improvements over earlier 7660 designs. These improvements include full 1.5V to 9V supply operation over the entire operating temperature range, without the need for external protection diodes; two and one-half times lower quiescent current for greater power conversion efficiency; and a “boost” function which is available to raise the internal oscillator frequency to optimize performance in specific applications. It is used in application such as conversion of 5V to ±5V supplies, precise voltage division, VOUT = VIN/2 ±20ppm, voltage multiplication, VOUT = ±nVIN, supply splitter, VOUT = ±VS/2 etc.

• Guaranteed operation to 9V, with no external diode, over full temperature range
• Boost pin (pin 1) for higher switching frequency
• Lower quiescent power, efficient voltage doubler
• Supply current is 60μA typ at (RL = ∞, pins 1 and 7 no connection, TA = 25°C, V+ = 5V)
• Supply voltage range is 1.5V to 9V
• Oscillator frequency is 5KHz minimum at (RL = 5Kohm, fOSC = 5KHz)
• Voltage conversion efficiency is 99.9% typ at (RL = ∞, TA = 25°C, V+ = 5V)
• Power efficiency is 98% typ at (RL = 5Kohm, fOSC = 5KHz, TA = 25°C, V+ = 5V)
• Operating temperature is 0°C to 70°C
• Package style is 8-lead PDIP

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