AS7660G

AS7660G is a kind of DC-to-DC converter which contains a DC power supply regulator,RC oscillator,voltage-level transistor,four output power MOS switches and a unique logic element which ensures latch-up free operation.The typical applications of AS7660G include -5 V for LCD,A-To-D converters,D-To-A converters,multiplexers and operational amplifiers.

There are some features of AS7660G as follows.First is Zero IQ current during shutdown.The second is wide input voltage range which is from 1.2 V to 12 V.Then is low power supply which is 80 A.Next is efficient voltage conversion which is 99.9%.The fifth is RS232 negative power supply.The sixth is low cost,simple to use.The seventh is available in standard 8 pin low cost SOIC & SOIC^TM.The eighth is ESD protection up to 3 KV.The last one is similar to industry standard ICL7660.

What comes next is about the absolute maximum ratings of AS7660G.The supply voltage is +13 V.The LV and OSC input voltage is from 0.3 V to (V⁺+0.3 V) for V⁺<5.5 V and is from (V⁺-5.5 V) to (V⁺ to 0.3 V) for V⁺<5.5 V.The current into LV is 20A for V⁺>3.5 V.The output short duration (V_SUUPLY5.5 V) is continuous.The power dissipation is 375 mW for plastic DIP and 800 mW for plastic SOIC.The operating temperature range is from -40 to +85 for I suffix.The storage temperature range is from -65 to +150.The lead temperature (soldering,10 sec) is +300.

The following is about the electrical characteristics (V⁺=5 V,T_A=25,C_OSC=0).The typical supply current is 80 A and the maximum is 180 A at R_L=.The typical oscillator frequency is 10 kHz.The minimum power efficieny is 95% and the typical is 98% at R_L=5 k.The minimum voltage conversion efficiency is 97% and the typical is 99.9% at R_L=.Teh typical oscillator impedance is 1 M at V⁺=2 V and is 100 k at V⁺=5 V.