NXP MC34701

Beschreibung

The 34701 provides the means to efficiently supply the FreescalePower QUICC™ I, II, and other families of Freescalemicroprocessors and DSPs. The 34701 incorporates a highperformance switching regulator, providing the direct supply for themicroprocessor’s core, and a low dropout (LDO) linear regulatorcontrol circuit provides the microprocessor I/O and bus voltage.The switching regulator is a high-efficiency synchronous buckregulator with integrated N-channel power MOSFETs to provideprotection features and to allow space-efficient, compact design.The 34701 incorporates many advanced features; e.g., preciselymaintained up/down power sequencing, ensuring the properoperation and protection of the CPU and power system.

Eigenschaften

• Operating voltage from 2.8V to 6.0V
• High-accuracy output voltages
• Fast transient response
• Switcher output current up to 1.5A
• Under-voltage 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 EWI2C is a trademark of Philips Corporation.

Typische Anwendungen

• Wireless Modems
• Portable Equipment
• Lithium Ion Cell Equipment
• Telecom and Network Cards
• Cable Modems

Weiterführende Informationen

• Datenblatt