Fujitsu MB3802
The MB3802 is a power management switch incorporating two switch circuits with extremely low ON resistance. The MB3802 starts at a very low voltage (typical VIN > 2.2V) and a stable ON resistance is obtained irrespective of the switching voltage because the internal DC/DC converter applies the optimum voltage for the N-ch MOS gate at switch ON. 10 1 8 2 DLYB GNDA GNDB MB3802 s BLOCK DIAGRAM AND EXTERNAL CONNECTIONS CD Extemal capacitor Power supply DLY SW IN Switch-ON circuit DC/DC converter Comp V IN SW OUT Switch-OFF circuit (+) Switch control Load Load discharge circuit DDG GND Note: The MB3802 incorporates two switch blocks as shown...