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Texas Instruments TPS563249
TPS563249 17 V, 3 A, Constant 1.4 MHz Synchronous Step-Down Voltage Regulator
Overview
| Topology | Buck Converter |
| Input voltage | 4.5-17 V |
| Output 1 | 3.3 V / 3 A |
| IC revision | A |
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
- Broadband Modem/ Access Point Networks/ Wireless Routers
- Surveillance
- Digital TV, Set-Top Boxes
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT(A) | fres(MHz) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TPC SMT Tiny Power Inductor, 1.5 µH, 7.2 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance1.5 µH | Rated Current7.2 A | Saturation Current7.5 A | Self Resonant Frequency80 MHz | MountSMT |