Texas Instruments TPS563249

Description

The TPS563249 is a simple, easy-to-use, 3 Asynchronous step-down converter in SOT-23package.The device is optimized to operate with minimumexternal component counts and also optimized toachieve low standby current.This switch mode power supply (SMPS) deviceemploys D-CAP3 mode control providing a fasttransient response and supporting both lowequivalentseries resistance (ESR) output capacitorssuch as specialty polymer and ultra-low ESR ceramiccapacitors with no external compensationcomponents.TPS563249 operates in Forced ContinuousConduction Mode (FCCM), which maintains fixed 1.4MHz switching frequency during light load operationand eliminates system interference. The TPS563249is available in a 6-pin 1.6-mm × 2.9-mm SOT (DDC)package, and specified from a –40°C to 125°Cjunction temperature.

Features

• 3-A Converter Integrated 70-mΩ and 30-mΩ FETs
• D-CAP3™ Mode Control with Fast Transient Response
• Input Voltage Range: 4.5 V to 17 V
• Output Voltage Range: 0.6 V to 7 V
• Forced Continuous Conduction Mode
• Constant 1.4-MHz Switching Frequency
• Low Shutdown Current Less than 10 μA
• 1% Feedback Voltage Accuracy (25ºC)
• Startup from Pre-Biased Output Voltage
• Cycle-by-Cycle Overcurrent Limit
• Hiccup-mode Overcurrent Protection
• Non-Latch UVP and TSD Protections
• Fixed Soft Start: 1.8 ms

Typical applications

• Surveillance
• Broadband Modem/ Access Point Networks/ Wireless Routers
• Digital TV, Set-Top Boxes

More information

• Datasheet
• IC product information