IC-Hersteller NXP

IC-Hersteller (96)

NXP MC34701

1.5A Switch-Mode Power Supply with Linear Regulator

Details

TopologieAbwärtswandler
Eingangsspannung3.3 V
Schaltfrequenz200-400 kHz
Ausgang 11.8 V / 1.5 A
IC-Revision7.0

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

Weiterführende Informationen

Artikeldaten