TPP60508 Non-Synchronous Step-Down DC-DC Voltage Converter
The TPP60508 is a 60-V,5-A output,nonsynchronous,step-down,switch-mode converter with integrated high-side power MOSFET.The TPP60508 employs current-mode control supporting simple external compensation and flexible component selection.It also supports low quiescent current mode with pulse-skipping and ultra-low sleep current.With integrated phase-locked loop,it can synchronize with external clock source with wide frequency selection,optimized for efficiency,physical dimensions,and electro-magnetic interference(EMI).Protection and diagnostic features protect the device as well as the system power supply.By using opendrain powergood output,the user system is able to distinguish if the output supply is within target voltage range.The soft-start feature,which controls the output ramping,can be set independently with external resistors to soft-start or sequencing/tracking mode.Current-limit,frequency foldback and over temperature protection improves system-level robustness.
Features
High Efficiency at Light Loads with Pulse Skipping
80-mΩHigh-Side MOSFET
160-μA Operating Quiescent Current and 1-μA Shutdown Current
100-kHz to 2.5-MHz Adjustable Switching Frequency
Integrated PLL to Synchronize with External Clock
Adjustable UVLO Voltage and Hysteresis
Under-voltage and Over-voltage Power Good Output
Adjustable Soft-Start and Sequencing
0.8-V 1.5%Internal Voltage Reference
10-Pin DFN4X4-10 with Exposed Pad Package
–40°C to 125°C Operation Temperature Range
Applications
=>12-V,24-V,48-V Industrial Power Application
=>Telecom&Communication Equipment Power Applications
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