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SMB110 Scheda tecnica(PDF) 1 Page - Summit Microelectronics, Inc. |
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SMB110 Scheda tecnica(HTML) 1 Page - Summit Microelectronics, Inc. |
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1 / 34 page  SMB110 Preliminary Information © SUMMIT Microelectronics, Inc. 2005 1717 Fox Drive • San Jose CA 95131 • Phone 408 436-9890 • FAX 408 436-9897 http://www.summitmicro.com/ 2099 2.3 5/3/2005 1 Five Channel Programmable DC-DC System Power Manager INTRODUCTION • Digital programming of all major parameters via I2C interface and non-volatile memory o Output voltage set point o Output power-up/down sequencing o Input/Battery voltage monitoring o Digital soft-start and output slew rate o Output voltage margining o UV/OV monitoring of all outputs o Enable/Disable outputs independently • Five output channels o Two synchronous step-down (buck) channels o One step-up (boost) channel o One inverting (buck-boost) channel o One fixed output +3.3V LDO • User friendly Graphical User Interface (GUI) • +2.7V to +6.0V Input Range • Highly accurate reference and output voltage (<0.5%) with Active DC Output Control (ADOC™) technology • Undervoltage Lockout (UVLO) with hysteresis • 800 kHz operating frequency • 96 bytes of user configurable nonvolatile memory Applications • Digital camcorders/still cameras • Portable DVD/MP3/GPS • Camera/smart phones • TFT Displays/Monitors/TV’s • Mobile Computing/PDA’s • Consumer battery-operated equipment The SMB110 is a highly integrated and flexible five-channel power manager designed for use in a wide range of portable applications. The built-in digital programmability allows system designers to custom tailor the device to suit almost any multi- channel power supply application from digital camcorders to mobile phones. Complete with a user friendly GUI, all programmable settings including output voltages and input/output voltage monitoring can be customized with ease. The SMB110 integrates all the essential blocks required to implement a complete five-channel power subsystem including two synchronous step-down “buck” controllers, one step-up “boost” controller, one inverting “buck-boost” controller and one fixed output +3.3V LDO. Additionally sophisticated power control/monitoring functions required by complex systems are built-in. These include digitally programmable output voltage set point, power-up/down sequencing, enable/disable, margining and UV/OV/input/output monitoring on all channels. The integration of features and built-in flexibility of the SMB110 allows the system designer to create a “platform solution” that can be easily modified via software without major hardware changes. Combined with the re-programmability of the SMB110 this facilitates rapid design cycles and proliferation from a base design to future generations of product. The SMB110 is suited to battery-powered applications with an input range of +2.7V to +6.0V. Output voltages are extremely accurate (<0.5%) employing proprietary ADOC™ technology. Communication is via the industry standard I 2C bus. All user- programmed settings are stored in non-volatile EEPROM of which 96 bytes may be used for general-purpose memory applications. The operating temperature range is +0C to +70C and the available package is a lead-free, Green, RoHS compliant, 32-pad QFN-32. SIMPLIFIED APPLICATIONS DRAWING FEATURES & APPLICATIONS Figure 1 – Applications diagram featuring the SMB110 five-channel, programmable DC-DC controller Note: This is an applications example only. Some pins, components and values are not shown. SMB110 -0.8V to -30V (Prog.) @UP TO1A Vin to +30V (Prog.) @ UP TO 1A +2.7V to +6.0V or Li-Ion CPU Core TFT/LCD CCD MCU/RTC I2C/SMBus LDO 2 Step- Down (Buck) Channels Inverter Channel System Control and Monitoring Reset Output Power Good Reset Input +0.8V to 0.9 x Vin (Prog.) @ 2A Memory, I/O Step-Up (Boost) Channels +0.8V to 0.9 x Vin (Prog.) @ 2A +3.3V @20mA Step-Up (Boost) Channels |
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