General Description
The XR77129 is a quad channel digital Pulse Width Modulated (PWM) step down (buck) controller. A wide 6V to 40V input voltage range allows for single supply operation from standard power rails.
FEATURES
◾ Quad Channel Step-down Controller
□ Digital PWM 105kHz-1.23MHz Operation
□ Individual Channel Frequency Selection
□ Patented digital PFM with Ultrasonic mode
□ Patented Over Sampling Feedback
□ Programmable 5 coefficient PID control
□ Integrated MOSFET Drivers
◾ 6V to 40V Input Voltage
◾ 0.6V to 5.5V Output Voltage (higher with external feedback resistors)
◾ SMBus Compliant I2C Interface
◾ Full Power Monitoring and Reporting
◾ 3 x 15V Capable PSIO + 2 x GPIOs
◾ Full Start/Stop Sequencing Support
◾ Built-in Thermal, Over-Current, UVLO and Output Over-Voltage Protections
◾ On Board 5V and LDOOUT Standby LDOs
◾ On Board Non-Volatile Memory
◾ Supported by PowerArchitect™ 5.2 or later
APPLICATIONS
◾ Industrial Control Systems
◾ Automatic Test Equipment
◾ Video Surveillance Systems
◾ Automotive Infotainment