• Apps: Computing, modems, switches/routers, servers, ADSL/cable modems, RAID cards, STBs, DVRs
• The SMB211 combines high-performance power conversion and digital control in a single, space-saving device
• The integration of advanced power control functions eliminates external components and cost, improves functionality and performance, and minimizes development time
• Summit's non-volatile configurable technology enables the implementation of flexible platform solutions that can be easily modified for different designs without any hardware changes
• The SMB211 integrates a synchronous DC-DC step-down (buck) converter with a useful set of digital control functions
• The device's high current drive capability allows over 10A of output, while using a wide variety of industry-standard MOSFETs
• The SMB211 can operate at four different, programmable frequencies (250 kHz, 500 kHz, 750 kHz ,and 1 MHz) allowing optimization of efficiency and component size. Soft-start and power-on delays are also selectable to address various system requirements, especially in multipower supply applications
• The SMB211's output voltage accuracy is better than 1 percent and supports dynamic voltage scaling as well as margin high/low control via the serial digital interface
• The output voltage can be digitally set from +0.5 V to +2.5 V in 10 mV steps, or from +1.0V to +5.0V in 20mV steps
• The SMB211 incorporates a pulse-by-pulse current limit by monitoring the voltage drop across the upper N-FET
• Various current limit thresholds as well as several over-current response modes are available for maximum design flexibility
• The SMB211 operates directly from an input voltage of +4.5 V to +13.5 V, however the external FETs can be powered from a lower voltage supply, as low as 3.3 V, if necessary
• The rated operating temperature range is -30 C to +85 C
• Programming is achieved via an industry-standard serial interface and configuration data is safely stored in non-volatile OTP memory

See also:

• SMB211 Controller Datasheet
• Summit Microelectronics products
• Restart Search

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