Texas Instruments TPS54062

Beschreibung

The TPS54062 device is a 60 V, 50-mA, synchronous step-down converter with integrated high side and low side MOSFETs. Current mode control provides simple external compensation and flexible component selection. The non-switching supply current is 89 µA.Using the enable pin, shutdown supply current is reduced to 1.7 µA.Under voltage lockout is internally set at 4.5 V, but can be increased using the accurate enable pin threshold. The output voltage startup ramp iscontrolled by the internal slow start time.Adjustable switching frequency range allows efficiency and external component size to be optimized. Frequency fold back and thermalshutdown protects the part during an overload condition.

Eigenschaften

• Integrated High Side and Low Side MOSFET
• Peak Current Mode Control
• Diode Emulation for Improved Light Load Efficiency
• 89 µA (typical) Operating Quiescent Current
• 100 kHz to 400 kHz Adjustable Switching Frequency
• Synchronizes to External Clock
• Internal Slow Start
• 0.8 V ±2% Voltage Reference
• Stable with Ceramic Output Capacitors or Low Cost Aluminum Electrolytic
• Cycle-by-Cycle Current Limit, Thermal and Frequency Fold Back Protection
• MSOP-8 and 3mm x 3mm VSON-8 Packages

Typische Anwendungen

• 4-20 mA Current-Loop Powered Sensors
• Industrial Process Control, Metering, and Security systems
• Low Power Standby or Bias Voltage Supplies
• High Voltage Linear Regulator Replacemen

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers