DESCRIPTION

The ZXRD1000 series provides complete control and protection functions for a high efficiency (> 95) DC-DC converter solution. The choice of external MOSFETs allow the designer to size devices according to application. The ZXRD1000 series uses advanced DC-DC converter techniques to provide synchronous drive capability, using

innovative circuits that allow easy and cost effective implementation of shoot through protection.

FEATURES

• > 95 Efficiency

• Fixed frequency (adjustable) PWM

• Voltage mode to ensure excellent stability &

transient response

• Low quiescent current in shutdown mode,15µA

• Low battery flag

• Output down to 2.0V

• Overload protection

• Demonstration boards available

• Synchronous or non-synchronous operation

• Cost effective solution

• N or P channel MOSFETs

• QSOP16 package

• Fixed 3.3, 5V and adjustable outputs

• Programmable soft start

APPLICATIONS

• High efficiency 5 to 3.3V converters up to 4A

• Sub-notebook computers

• Embedded processor power supply

• Distributed power supply

• Portable instruments

• Local on card conversion

• GPS systems