1.5A Switch-Mode Power Supply with Linear Regulator

The 34701 provides the means to efficiently supply the Freescale Power QUICC™ I, II, and other families of Freescale microprocessors and DSPs. The 34701 incorporates a high performance switching regulator, providing the direct supply for the microprocessor’s core, and a low dropout (LDO) linear regulator control circuit provides the microprocessor I/O and bus voltage.

FEATUREs
• Operating voltage from 2.8V to 6.0V
• High-accuracy output voltages
• Fast transient response
• Switcher output current up to 1.5A
• Under-voltage lockout and overcurrent protection
• Enable inputs and programmable watchdog timer
• Voltage margining via I2C™ bus
• Reset with programmable power-ON delay
• Pb-free packaging designated by suffix code EW