DatasheetsPDF.com

TPS5403

Texas Instruments
Part Number TPS5403
Manufacturer Texas Instruments
Description NON-SYNCHRONOUS STEP-DOWN REGULATOR
Published Apr 1, 2021
Detailed Description TPS5403 www.ti.com SLVSBK5 – SEPTEMBER 2012 4.5-V TO 28-V INPUT VOLTAGE, 3.3-V FIXED OUTPUT, 1.7-A OUTPUT CURRENT, NO...
Datasheet PDF File TPS5403 PDF File

TPS5403
TPS5403

Overview
TPS5403 www.
ti.
com SLVSBK5 – SEPTEMBER 2012 4.
5-V TO 28-V INPUT VOLTAGE, 3.
3-V FIXED OUTPUT, 1.
7-A OUTPUT CURRENT, NON-SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED MOSFET Check for Samples: TPS5403 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 The TPS5403 is a monolithic non-synchronous buck regulator with wide operating input voltage range from 4.
5 V to 28 V.
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.
The switching frequency of the converters can be set from 50 kHz to 1.
1 MHz with an external resistor.
Frequency spread spectrum operation is introduced for EMI reduction.
LX anti-ringing is added to address high frequency EMI issues.
A cycle-by-cycle current limit with frequency fold back protects the IC at over loading condition.
1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA ...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)