8-Pin N-FET Linear
Regulator Controller
UCC1837 UCC2837 UCC3837
FEATURES • On Board Charge Pump to Drive
External N-MOSFET
• Input Voltage as Low as 3V
• Duty Ratio Mode Over Current Protection
• Extremely Low Dropout Voltage
• Low External Parts Count
• Output Voltages as Low as 1.
5V
DESCRIPTION
The UCC3837 Linear
Regulator Controller includes all the features required for an extremely low dropout linear
regulator that uses an external N-channel MOSFET as the pass
transistor.
The device can operate from input voltages as low as 3V and can provide high current levels, thus providing an efficient linear solution for custom processor voltages, bus termination voltages, and other logic level...