SC1454 - Semtech Corporation

SC1454 Dual 150mA Ultra Low Dropout/ Low Noise Regulator

The SC1454 contains two ultra low dropout voltage regulators (ULDOs). It operates from an input voltage range of 2.25V to 6.5V, and a wide variety of output voltage options are available. One ULDO has a fixed output, and the other is either fixed (SETA pin grounded) or adjustable using external resistors. Each ULDO has an independent enable pin. Dual 150mA .

Features

Up to 150mA per regulator output Low quiescent current Low dropout voltage Stable operation with ceramic caps Very low 50µVRMS output noise Wide selection of output voltages Tight load and line regulation Current and thermal limiting Reverse input polarity protection <1.5uA off-mode current Logic controlled enable SC1454 Designed specifically for battery operated systems, the devices utilize CMOS technology to require very low operating currents (typically 130µA with both outputs supplying 150mA). In addition, the dropout voltage is typically 155mV at 150mA, helping to prolong battery life f.