ACE705
High efficiency, Low supply current, step-up DC/DC Controller
Description The ACE705 series are CMOS-based PFM step-up DC-DC Controller with low supply current and high output voltage accuracy.
Quiescent current drawn from power source is as low as 6uA.
It is capable of delivering 500mA output current at 4.
0V output with 2V input Voltage.
Only four external components are necessary: An inductor, a
Schottky diode, an output filter capacitor and a NMOSFET or a
NPN transistor All of these features make ACE705 series be suitable for the portable devices, which are supplied by a single battery to four-cell batteries.
ACE705 has a drive pin (EXT) for external
transistor.
So it is possible ...