1 Features
1• 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: 1.7 ms

2 Applications
• Broadband Modem
• Access Point Networks
• Wireless Routers
• Surveillance
• TV, Set-Top Boxes

3 Description
The TPS563249 is a simple, easy-to-use, 3 A
synchronous step-down converter in SOT-23
package.
The device is optimized to operate with minimum
external component counts and also optimized to
achieve low standby current.
This switching regulator employs D-CAP3 mode
control providing a fast transient response and
supporting both low-equivalent series resistance
(ESR) output capacitors such as specialty polymer
and ultra-low ESR ceramic capacitors with no
external compensation components.
TPS563249 operates in Forced Continuous
Conduction Mode (FCCM), which maintains fixed 1.4
MHz switching frequency during light load operation
and eliminates system interference. The TPS563249
is available in a 6-pin 1.6-mm × 2.9-mm SOT (DDC)
package, and specified from a –40°C to 125°C
junction temperature.