MC34702 - Freescale Semiconductor

MC34702 Switch-Mode Power Supply

A functional description of each pin can be found in the Functional Pin Description section beginning on page 16. Pin 1 Pin Name FREQ Formal Name Oscillator Frequency Definition This switcher frequency selection pin can be adjusted by connecting external resistor RF to the FREQ pin. The default switching frequency (FREQ pin left open or tied to VDDI) is set.

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 2.8 V to 6.0 V High-Accuracy Output Voltages Fast Transient Response Switcher Output Current Up to 3.0 A Undervoltage 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 EK I2C is a trade.