Analog Devices / Maxim Integrated MAX1659 Low-Dropout Linear Regulators

Analog Devices Inc. MAX1659 Low-Dropout Linear Regulators maximize battery life by combining ultra-low supply currents and low dropout voltages. They feature Dual Mode™ operation, which presets the output to 5V or permits it to be adjusted between 1.25V and 16V. These regulators supply up to 350mA, with a typical dropout of 650mV for the MAX1658 and 490mV for the MAX1659. With their P-channel MOSFET pass transistor, these devices maintain a low quiescent current from zero output current to the full 350mA, even in dropout. They support input voltages ranging from 2.7V to 16.5V. The MAX1659 regulators feature a 1µA shutdown mode, reverse battery protection, short-circuit protection, and thermal shutdown. They are available in a special high-power (1.2W), 8-pin SO package explicitly designed for compact applications.