DESCRIPTION
The RH1185AMK uses a saturation-limited NPN transistor as the pass element. This structure gives the linear dropout characteristics of a FET pass element with significantly less die area. High efficiency is maintained by using special anti-saturation circuitry that adjusts base drive to track load current. The on-resistance is typically 0.25Ω. Accurate current limit is programmed with a single 1/8W external resistor, with a range of zero to three amperes. A second, fixed internal limit circuit prevents destructive currents if the programming current is accidentally overranged. The RH1185AMK has all the protection features of previous LTC regulators, including power limiting and thermal shutdown. ABSOLUTE MAXIMUM RATINGS
(Note 1) Input Voltage..............................................................35V Input-Output Differential............................................30V FB Voltage....................................................................7V REF Voltage.....
Linear Technology
