Texas Instruments TPS5403
The TPS5403 is a monolithic non-synchronous buck regulator with wide operating input voltage range from 4.5 V to 28 V. The switching frequency of the converters can be set from 50 kHz to 1.1 MHz with an external resistor.| Part No. | TPS5403 |
|---|---|
| Datasheet | TPS5403 Download |
| Manufacturer |  Texas Instruments |
| Description | NON-SYNCHRONOUS STEP-DOWN REGULATOR |
| Buy | Stock & Price |
FEATURES
1● Fixed 3.3-V Output
● 4.5-V to 28-V Wide Input Voltage Range
● Up to 1.7-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 and ground connection to 70 kHz)
● Peak Current-Mode Control
● Cycle-by-Cycle Over Current Protection
● Frequency Spread Spectrum and Switching Node Anti-Ringing to Ease EMI Issue
● External Soft Start
● Available in SOIC8 Package
APPLICATIONS
● 5-V, 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. TPS5403 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.
