TPS54394 Series

3A Dual Channel Synchronous Step-Down Switcher with Integrated FET

Catalog

3A Dual Channel Synchronous Step-Down Switcher with Integrated FET

Part	Number of Outputs	Voltage - Output (Max) [Max]	Mounting Type	Topology	Output Configuration	Frequency - Switching	Voltage - Output (Min/Fixed)	Operating Temperature [Max]	Operating Temperature [Min]	Function	Voltage - Input (Max) [Max]	Current - Output	Voltage - Input (Min) [Min]	Output Type	Package / Case	Supplier Device Package	Current - Output	Main Purpose	Voltage - Input [Max]	Voltage - Input [Min]	Voltage - Output	Utilized IC / Part	Regulator Topology	Supplied Contents	Outputs and Type	Outputs and Type	Board Type	Package / Case
Texas Instruments TPS54394RSAT	2	7 V	Surface Mount	Buck	Positive	700 kHz	0.76 V	85 °C	-40 °C	Step-Down	18 V	3 A	4.5 V	Adjustable	16-VQFN Exposed Pad	16-QFN (4x4)
Texas Instruments TPS54394RSAR	2	7 V	Surface Mount	Buck	Positive	700 kHz	0.76 V	85 °C	-40 °C	Step-Down	18 V	3 A	4.5 V	Adjustable	16-VQFN Exposed Pad	16-QFN (4x4)
Texas Instruments TPS54394EVM-057						700 kHz						3 A					3 A	DC/DC Step Down	18 V	5 V	1.5 V 3.3 V	TPS54394	Buck	Board(s)	2	Non-Isolated	Fully Populated
Texas Instruments TPS54394PWP	2	7 V	Surface Mount	Buck	Positive	700 kHz	0.76 V	85 °C	-40 °C	Step-Down	18 V	3 A	4.5 V	Adjustable	16-PowerTSSOP	16-HTSSOP												0.173 in 4.4 mm Width
Texas Instruments TPS54394PWPR	2	7 V	Surface Mount	Buck	Positive	700 kHz	0.76 V	85 °C	-40 °C	Step-Down	18 V	3 A	4.5 V	Adjustable	16-PowerTSSOP	16-HTSSOP												0.173 in 4.4 mm Width

Catalog

3A Dual Channel Synchronous Step-Down Switcher with Integrated FET

Key Features

• D-CAP2 Control ModeFast Transient ResponseNo External Parts Required For Loop CompensationCompatible with Ceramic Output CapacitorsWide Input Voltage Range : 4.5 V to 18 VOutput Voltage Range: 0.76 V to 7 VHighly Efficient Integrated FETs Optimized forLow Duty Cycle Applications90 mΩ (High Side) and 60 mΩ (Low Side)High Initial Reference AccuracySupports Constant 3 A at Both ChannelsLow-Side rDS(on)Loss-Less Current SensingFixed Soft Start : 1 msNon-Sinking Pre-Biased Soft StartPowergood700 kHz Switching FrequencyCycle-by-Cycle Over-Current Limit ControlHiccup Timer for Overload ProtectionOCL/UVLO/TSD ProtectionsAdaptive Gate Drivers with Integrated Boost PMOS SwitchOCP Constant Due To Thermally Compensated rDS(on)with 4000ppm/°C16-Pin HTSSOP, 16-Pin VQFNAuto-Skip Eco-mode™ for High Efficiency at Light LoadD-CAP2 Control ModeFast Transient ResponseNo External Parts Required For Loop CompensationCompatible with Ceramic Output CapacitorsWide Input Voltage Range : 4.5 V to 18 VOutput Voltage Range: 0.76 V to 7 VHighly Efficient Integrated FETs Optimized forLow Duty Cycle Applications90 mΩ (High Side) and 60 mΩ (Low Side)High Initial Reference AccuracySupports Constant 3 A at Both ChannelsLow-Side rDS(on)Loss-Less Current SensingFixed Soft Start : 1 msNon-Sinking Pre-Biased Soft StartPowergood700 kHz Switching FrequencyCycle-by-Cycle Over-Current Limit ControlHiccup Timer for Overload ProtectionOCL/UVLO/TSD ProtectionsAdaptive Gate Drivers with Integrated Boost PMOS SwitchOCP Constant Due To Thermally Compensated rDS(on)with 4000ppm/°C16-Pin HTSSOP, 16-Pin VQFNAuto-Skip Eco-mode™ for High Efficiency at Light Load

Description

The TPS54394 is a dual, adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54394 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, and low standby current solution. The main control loops of the TPS54394 use the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54394 to maintain high efficiency during lighter load conditions. The TPS54394 is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR, ceramic capacitors. The device provides convenient and efficient operation with input voltages from 4.5V to 18V. The TPS54394 is available in a 4.4 mm × 5 mm 16-pin TSSOP (PWP) and 4 mm × 4 mm 16-pin VQFN (RSA) package, and is specified for an ambient temperature range from –40°C to 85°C. The TPS54394 is a dual, adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54394 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, and low standby current solution. The main control loops of the TPS54394 use the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54394 to maintain high efficiency during lighter load conditions. The TPS54394 is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR, ceramic capacitors. The device provides convenient and efficient operation with input voltages from 4.5V to 18V. The TPS54394 is available in a 4.4 mm × 5 mm 16-pin TSSOP (PWP) and 4 mm × 4 mm 16-pin VQFN (RSA) package, and is specified for an ambient temperature range from –40°C to 85°C.