Texas Instruments UCD7242
The UCD7242 is a complete power system ready to drive two independent buck power supplies (see Figure 1). The MOSFET gates are driven to +6.25 V by an internally regulated VGG supply. The internal VGG regulator can be disabled to permit the user to supply an independent gate drive voltage.FEATURES
1● Fully Integrated Power Switches With Drivers for Dual Synchronous Buck Converters
● Full Compatibility With TI Fusion Digital Power Supply Controllers, Such as the UCD92xx Family
● Wide Input Voltage Range: 4.75 V to 18 V Operational Down to 2.2 V Input With an External Bias Supply
● Up to 10A Output Current per Channel
● Operational to 2 MHz Switching Frequency
● High Side Current Limit With Current Limit Flag
● Onboard Regulated 6 V Driver Supply From VIN
● Thermal Protection
● Temperature Sense Output – Voltage Proportional to Chip Temperature
● UVLO and OVLO Circuits Ensure Proper Drive Voltage
● Rated From –40°C to 125°C Junction Temperature
● RoHS Compliant
● Accurate On-Die Current Sensing (±5%)
APPLICATIONS
● Digitally-Controlled Synchronous-Buck Power Stages● High Current Dual-Phase VRM/EVRD Regulators for Desktop, Server, Telecom and Notebook Processors TMON VIN PWM-B SRE-B FLT-B VGGDIS IMON-B BST-B PWM-A SRE-A FLT-A IMON-A BST-A BSW-B SW-B BSW-A SW-A PGND PGND...