XR77129 Overview
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. With integrated FET gate drivers, two LDOs for standby power and a 105kHz to 1.23MHz independent channel to channel programmable constant operating frequency, the XR77129 reduces overall ponent count, solution footprint and...
XR77129 Key Features
- Quad Channel Step-down Controller Digital PWM 105kHz-1.23MHz Operation Individual Channel Frequency Selection Pate
- 6V to 40V Input Voltage
- 0.6V to 5.5V Output Voltage (higher with exter
- SMBus pliant 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 Out
- On Board 5V and LDOOUT Standby LDOs
- On Board Non-Volatile Memory
XR77129 Applications
- Quad Channel Step-down Controller Digital PWM 105kHz-1.23MHz Operation Individual Channel Frequency Selection Patented digital PFM with Ultrasonic mode
- 6V to 40V Input Voltage
- 0.6V to 5.5V Output Voltage (higher with exter
