MCZ34702

Freescale Semiconductor Technical Data Document Number: MC34702 Rev 7.0, 8/2007 3.0A Switch-Mode Power Supply with Linear Regulator The 34702 provides the means to efficiently supply the Freescale Power QUICC™ I, II, and other families of Freescale microprocessors and DSPs. The 34702 incorporates a high performance switching regulator, providing the direct supply for the microprocessor’s core, and a low dropout (LDO) linear regulator control circuit providing the microprocessor I/O and bus voltage. The switching regulator is a high efficiency synchronous buck regulator with integrated N-channel power MOSFETs to provide protection features and to allow space-efficient, compact design. The 34702 incorporates many advanced features; e.g., precisely maintained up/down power sequencing, ensuring the proper operation and protection of the CPU and power system. Features Operating voltage from 2.8V to 6.0V High-accuracy output voltages Fast transient response Switcher output current up to 3.0A Under-voltage lockout and over-current 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 I2C is a trademark of Philips Corporation. 34702 POWER SUPPLY EW (PB-FREE) SUFFIX 98AARH99137A 32-PIN SOICW ORDERING INFORMATION Device MCZ34702EW/R2 Temperature Range (TA) -40 to 85°C Package 32 SOICW 2.8 V to 6.0 V Input 34702 VIN2 VIN1 LDRV CS LDO LFB MPC8x...