MAX8815A, Most efficient 1A step-up converter for two AAs or one Li+ input
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Maxim Integrated Products introduces the MAX8815A 1A step-up converter featuring best-in-class efficiency (97%), low quiescent current (30microamps), and a low-noise, forced-PWM mode. Designed for input from two NiMH/NiCd AA batteries or a single Li+ battery, this boost converter provides an adjustable (3.3V to 5V) or preset (5V) output from a 1.2V to 5.5V input. When the output is set to 5V with the feedback pin grounded, the MAX8815A only requires three external components to provide up to 1A. For further space savings, it integrates a True Shutdown(TM) load-disconnect switch and internal compensation. A highly versatile and efficient device, the MAX8815A is ideal for space-constrained applications such as handheld communication devices, media players, and digital cameras.
The MAX8815A includes numerous protection features such as output-overload and short-circuit protection; inrush-current limiting in soft-start; and thermal shutdown. Available in a tiny, 3mm x 3mm, 10-pin TDFN package, this device is fully specified over the -40 degrees Celsius to +85 degrees Celsius extended industrial temperature range. An evaluation kit is available to speed designs and time to market.
True Shutdown is a trademark of Maxim Integrated Products, Inc.
Features
- The MAX8815A is a tiny, DC-DC step-up converter that provides up to 1A from a 2.5V input using only three external components.
- This device offers best-in-class efficiency of up to 97% while minimizing total solution size.
- Maxim's industry-leading process and design technology enables the high efficiency and small size of the MAX8815A.
- The MAX8815A is ideal for handheld applications that operate from two AA batteries or a single Li+ cell.