Features

• High Efficiency at Light Loads with Pulse Skipping

• 80-mΩ High-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

• DFN4X4-10 with Exposed Pad Package

• –40°C to 125°C Operation Ambient Temperature

Range

Applications

• 12-V, 24-V, 48-V Industrial Power Application

• Telecom & Communication Equipment Power

Applications

Description

The TPP60508 is a 60-V, 5-A output, non-synchronous,

step-down, and 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 the integrated phase-locked loop, the TPP60508

can synchronize with an external clock source with wide

frequency selection, optimized for efficiency, physical

dimensions, and electromagnetic interference (EMI).

Protection and diagnostic features protect the device

as well as the system power supply. By using opendrain power-good output, the user system is able to

distinguish if the output supply is within the 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

improve system-level robustness.