GS7660

GS7660 New Product Vishay formerly General Semiconductor Switched-Capacitor Voltage Converter Description SO-8 8 Pin Dip The GS7660 is a monolithic CMOS switched capacitor voltage converter, designed to be an improved direct replacement of the popular ICL7660, MAX1044 and LTC1044. They perform supply voltage conversions from positive to negative for an input voltage range of +1.5V to +6.0V to their negative complements of –1.5V to –6.0V. The input voltage can also be doubled (VOUT = 2VIN), halved (VOUT = VIN/2), or multiplied (VOUT = ± n.VIN). Contained on the chip are a series Power Supply regulator, Oscillator, control Circuitry and four Power MOS Switches. The oscillator, when unloaded, oscillates at a nominal frequency of 10 kHz, with an Input voltage of 5.0V. This frequency can be lowered by the addition of an external capacitor to the “Osc” terminal or overdriven by an external frequency source. An Oscillator “boost” function is available to increase the oscillator frequency which will optimize performance of certain parameters. The Lv input can be connected to ground to improve low voltage operation (VIN ≤ 3V), or left open for input voltages greater than 3V to reduce power dissipation. The GS7660 provides superior performance over earlier designs by combining low output impedance and low quiescent current with high efficiency and by eliminating diode voltage drop losses. The only external components required are two low cost electrolytic capacitors. Features Low ...