Texas Instruments TPS5405
The TPS5405 is a monolithic non-synchronous buck regulator with wide operating input voltage range from 6.5 V to 28 V. The switching frequency of the converters can be set from 50 kHz to 1.1 MHz with an external resistor.FEATURES
1● Fixed 5-V Output
● 6.5-V to 28-V Wide Input Voltage Range
● Up to 2-A Maximum Continuous Output Loading Current
● Pulse Skipping Mode to Achieve High Light Load Efficiency
● Over 80% Efficiency at 10-mA Loading
● Adjustable 50-kHz to 1.1-MHz Switching Frequency Set by an External Resistor (Leave pin ROSC floating. Set frequency to 120 kHz)
● Peak Current-Mode Control
● Cycle-by-Cycle Over Current Protection
● Switching Node Anti-Ringing to Ease EMI Issue
● External Soft Start
● Available in SOIC8 Package
APPLICATIONS
● 9-V, 12-V and 24-V Distributed Power Systems● Consumer
APPLICATIONS
Such as Home Appliances, Set-Top Boxes, CPE Equipment, LCD Displays, Peripherals, and Battery Chargers● Industrial and Car Entertainment Power Supplies
DESCRIPTION
Current mode control with internal slope compensation is implemented to reduce component count. TPS5405 also features a light load pulse skipping mode, which allows for a power loss reduction from the input power supply to the system at light loading.