Philips VES1.1E - FDC642; 20.1 General description; 20.2 Features; 20.3 Pinning

7
EN
Enable/UVLO. A voltage greater than 2.71V enables operation. For
complete low current shutdown the EN pin voltage needs to be at less
than 900mV. When the voltage on EN exceeds 1.2V, the internal
regulator will be enabled and the soft-start capacitor will begin to
charge. The MP1583 will start switching after the EN pin voltage
reaches 2.71V.
8
SS
Soft-Start Control Input. SS controls the soft-start period.
20 FDC642
20.1 General description
This P-Channel 2.5V specified MOSFET is produced using Fairchild’s advanced
PowerTrench® process that has been especially tailored to minimize on-state resistance
and yet maintain low gate charge for superior switching performance.
These devices have been designed to offer exceptional power dissipation in a very small
footprint for applications where the larger packages are impractical.
20.2 Features
• Max rDS(on) = 65 mΩ at VGS = -4.5 V, ID = -4.0 A
• Max rDS(on)
= 100 mΩ at VGS = -2.5 V, ID = -3.2 A
• Fast switching speed
• Low gate charge (11nC typical)
• High performance trench technology for extremely low rDS(on)
• SuperSOTTM-6 package: small footprint (72% smaller than standard
SO-8); low profile (1 mm thick)
• Termination is Lead-free and RoHS Compliant
20.3 Pinning