Freescale Semiconductor Technical Data
Document Number: MC34703
Rev.
5.
0, 8/2006
10A+ Switch-Mode Power Supply with LDO
Regulator
The 34703 integrated power supply IC is designed to support the PowerQUICCâ„¢ family of MCUs as well as other MCUs and DSPs requiring a high current core supply.
The 34703 incorporates a highperformance switching
regulator for the microprocessor’s core supply, and a low-dropout (LDO) linear
regulator control circuit to provide I/O and bus voltage.
The switching
regulator is an efficient synchronous buck converter with integrated low RDS(ON) high side and low side FETs.
Temperature and current sensing is built in and provides protection for the IC as well as the e...