MAX863EEE+

The MAX863EEE+ is a dual, high efficiency, PFM, step-up DC-DC controller in 16 pin QSOP package. The dual output DC-DC converter contains two independent step-up controllers in a single compact package. This monolithic Bi-CMOS design draws only 85µA when both controllers are on. The input range extends down to 1.5V, permitting use in organizers, translators and other low-power hand-held products. It provides 90% efficiency at output loads from 20mA to over 1A. Device uses a current-limited, pulse frequency modulated (PFM) control architecture that reduces start-up surge currents and maintains low quiescent currents for excellent low-current efficiency. Each controller drives a low cost, external, N-channel MOSFET switch, whose size can be optimized for any output current or voltage. It is used in 2-cell and 3-cell portable equipment, organizers, translators, palmtop computers, personal digital assistants (PDAs) and dual supply (logic and LCD).

• Supply voltage range is 1.5V to 11V
• Operating temperature range from -40°C to 85°C
• 85µA max total quiescent supply current
• Current of 1µA in shutdown mode
• Independent shutdown inputs
• Drives surface mount, dual N-channel MOSFETs
• Low-battery input/output comparator
• Step-up/down configurable

Notas

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party