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TPS54719 Series

2.95V to 6V Input, 7A Synchronous Step-Down DC/DC Converter

Manufacturer: Texas Instruments

Catalog(1 parts)

PartOperating Temperature▲▼Operating Temperature▲▼Voltage - Input (Min)▲▼Output TypeVoltage - Output (Min/Fixed)▲▼Voltage - Output (Max)▲▼Synchronous Rectifier▲▼Voltage - Input (Max)▲▼Frequency - Switching▲▼Frequency - Switching▲▼Number of Outputs▲▼Current - Output▲▼Output ConfigurationFunctionTopologyMounting TypeSupplier Device PackagePackage / Case
Texas Instruments
TPS54719RTER
Buck Switching Regulator IC Positive Adjustable 0.6V 1 Output 7A 16-WFQFN Exposed Pad
85 °C
-40 °C
2.950000047683716 V
Adjustable
0.6000000238418579 V
4.5 V
6 V
200000 Hz
2000000 Hz
1 ul
7 A
Positive
Step-Down
Buck
Surface Mount
16-WQFN (3x3)
16-WFQFN Exposed Pad

Key Features

• Two 30-mΩ (typical) MOSFETs for high efficiency at 7-A loads200-kHz to 2-MHz switching frequency0.6 V ± 1.5% voltage reference over temperatureAdjustable slow start/sequencingUV and OV power-good outputLow operating and shutdown quiescent currentSafe start-up into pre-biased outputCycle-by-cycle current limit, thermal and frequency foldback protection–40°C to 140°C operating junction temperature rangeThermally enhanced 3-mm × 3-mm 16-pin QFNTwo 30-mΩ (typical) MOSFETs for high efficiency at 7-A loads200-kHz to 2-MHz switching frequency0.6 V ± 1.5% voltage reference over temperatureAdjustable slow start/sequencingUV and OV power-good outputLow operating and shutdown quiescent currentSafe start-up into pre-biased outputCycle-by-cycle current limit, thermal and frequency foldback protection–40°C to 140°C operating junction temperature rangeThermally enhanced 3-mm × 3-mm 16-pin QFN

Description

AI
The TPS54719 device is a full featured 6-V, 7-A, synchronous step down current mode converter with two integrated MOSFETs. The TPS54719 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by enabling up to 2-MHz switching frequency, and minimizing the IC footprint with a small 3-mm × 3-mm thermally enhanced QFN package. The TPS54719 provides accurate regulation for a variety of loads with an accurate ±1.5% Voltage Reference (VREF) over temperature. Efficiency is maximized through the integrated 30-mΩ MOSFETs and 455-µA typical supply current. Using the enable pin, shutdown supply current is reduced to 1 µA by entering a shutdown mode. Undervoltage lockout is internally set at 2.4 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage start-up ramp is controlled by the slow-start pin. An open-drain power-good signal indicates the output is within 93% to 108% of its nominal voltage. Frequency foldback and thermal shutdown protects the device during an overcurrent condition. The TPS54719 is supported in the WEBENCH™ Software Tool atwww.ti.com/webench. The TPS54719 device is a full featured 6-V, 7-A, synchronous step down current mode converter with two integrated MOSFETs. The TPS54719 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by enabling up to 2-MHz switching frequency, and minimizing the IC footprint with a small 3-mm × 3-mm thermally enhanced QFN package. The TPS54719 provides accurate regulation for a variety of loads with an accurate ±1.5% Voltage Reference (VREF) over temperature. Efficiency is maximized through the integrated 30-mΩ MOSFETs and 455-µA typical supply current. Using the enable pin, shutdown supply current is reduced to 1 µA by entering a shutdown mode. Undervoltage lockout is internally set at 2.4 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage start-up ramp is controlled by the slow-start pin. An open-drain power-good signal indicates the output is within 93% to 108% of its nominal voltage. Frequency foldback and thermal shutdown protects the device during an overcurrent condition. The TPS54719 is supported in the WEBENCH™ Software Tool atwww.ti.com/webench.