The SMB122 is a highly integrated and flexible nine-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. The SMB122 integrates all the essential blocks required to implement a complete nine-channel power subsystem including three synchronous step-down "buck" converters, one configurable step-up "boost" or step-down synchronous "buck" converter, two step-up (boost) converters, one configurable step-up "boost" or inverting stepup/down "buck-boost" converter, one linear regulator (LDO) and a fully programmable Li-Ion battery charger. Additionally sophisticated power control/monitoring functions required by complex systems are built-in. These include digitally programmable output voltage setpoint, powerup/down sequencing, enable/disable, margining and UV/OV input/output monitoring on all channels. The integration of features and built-in flexibility of the SMB122 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 SMB122 this facilitates rapid design cycles and proliferation from a base design to futures generations of product.