SC1456

Dual 150mA ULTRA LOW DROPOUT, LOW NOISE REGULATOR PRELIMINARY - June 15, 2000 SC1456 TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com DESCRIPTION The SC1456 contains two low dropout linear regulators that operate from a +2.5V to +6V input range and deliver up to 150mA. PMOS pass transistors allow a low 110µA supply current per device to remain independent of load, making these devices ideal for battery operated portable equipment such as cellular phones, cordless phones and personal digital assistants. Each device can be powered from a separate supply voltage or the same supply voltage for maximum flexibility. The output voltage of each device can be preset or adjusted with an external resistor divider. Other features include independant low powered shutdown, short circuit protection, thermal shutdown protection and reverse battery protection for each regulator. The SC1456 comes in the tiny 10 lead MSOP package. FEATURES Two guaranteed 150 mA outputs Designed to operate with ceramic capacitors Fixed or adjustable outputs Very small external components Low 75µVRMS output noise Very low supply currents Thermal overload protection Reverse battery protection Individual low power shutdown Surface mount packaging (10 pin MSOP) Full industrial temperature range APPLICATIONS Battery Powered Systems Cellular Telephones Cordless Telephones Personal Digital Assistants Portable Instrumentation Modems PCMCIA cards ORDERING INFORMATION P...