MC34703 - Freescale Semiconductor

MC34703 Switch-Mode Power Supply

of each pin can be found in the Functional Pin Description section beginning on page 15. Pin Number 1 Pin Name Pin Function Input Formal Name Boost Voltage Definition Input for internal boost regulator. The internal boost regulator provides 8 V (at up to 45 mA current) to supply the gate drive circuits for the integrated power MOSFETs and the external N-chan.

Features

for use with high power processors and controllers, including power-up and power-down sequencing of the I/O and core supply voltages in relation to each other. Features
• Wide input Operating Voltage Range: 2.8 V to 13.5 V
• Adjustable Output Voltages
• Continuous Core Voltage Supply Currents up to 10 A (with infrequent excursions to 12 A permitted)
• Undervoltage Lockout
• Selectable Power Sequencing
• Programmable Watchdog Timer
• Voltage Margining via I2C Bus www.DataSheet4U.com
• Overcurrent Protection
• Reset with Programmable Power-ON Delay 2.8 to 13.5 V 34703 INTEGRATED POWER SUPPLY I.