3.0 A Switch-Mode Power Supply with Linear Regulator

The 33702 provides the means to efficiently supply the Power QUICC™ I, II, and other families of Motorola microprocessors and DSPs. The 33702 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.

Features

• Operating Voltage: 2.8 V to 6.0 V

• High-Accuracy Output Voltages

• Fast Transient Response

• Switcher Output Current Up to 3.0 A

• Undervoltage Lockout

• Power Sequencing

• Programmable Watchdog Timer

• Voltage Margining via I2C™ Bus

• Overcurrent Protection

• Reset with Programmable Power-ON Delay

• Enable Inputs

I2C is a trademark of Phillips Corporation.