TPS54339E Series

4.5-V to 23-V input, 3-A synchronous step-down converter with D-CAP2 mode and light load efficiency

Catalog

4.5-V to 23-V input, 3-A synchronous step-down converter with D-CAP2 mode and light load efficiency

Part	Number of Outputs	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Frequency - Switching	Voltage - Input (Min) [Min]	Current - Output	Supplier Device Package	Voltage - Output (Max) [Max]	Output Type	Function	Voltage - Output (Min/Fixed)	Voltage - Input (Max) [Max]	Package / Case [y]	Package / Case [x]	Package / Case	Topology	Output Configuration	Voltage - Output	Regulator Topology	Outputs and Type	Outputs and Type	Supplied Contents	Board Type	Voltage - Input [Max]	Voltage - Input [Min]	Utilized IC / Part	Main Purpose
Texas Instruments TPS54339DDA	1	Surface Mount	85 °C	-40 °C	600 kHz	4.5 V	3 A	8-SO PowerPad	7 V	Adjustable	Step-Down	0.76 V	23 V	3.9 mm	0.154 in	8-PowerSOIC	Buck	Positive
Texas Instruments TPS54339DDAR	1	Surface Mount	85 °C	-40 °C	600 kHz	4.5 V	3 A	8-SO PowerPad	7 V	Adjustable	Step-Down	0.76 V	23 V	3.9 mm	0.154 in	8-PowerSOIC	Buck	Positive
Texas Instruments TPS54339EDDAR	1	Surface Mount	85 °C	-40 °C	600 kHz	4.5 V	3 A	8-SO PowerPad	7 V	Adjustable	Step-Down	0.76 V	23 V	3.9 mm	0.154 in	8-PowerSOIC	Buck	Positive
Texas Instruments TPS54339EDDA	1	Surface Mount	85 °C	-40 °C	600 kHz	4.5 V	3 A	8-SO PowerPad	7 V	Adjustable	Step-Down	0.76 V	23 V	3.9 mm	0.154 in	8-PowerSOIC	Buck	Positive
Texas Instruments TPS54339EVM-056					600 kHz		3 A												1.05 V	Buck	Non-Isolated	1	Board(s)	Fully Populated	23 V	4.5 V	TPS54339	DC/DC Step Down
Texas Instruments TPS54339EEVM-056					600 kHz		3 A												1.05 V	Buck	Non-Isolated	1	Board(s)	Fully Populated	23 V	4.5 V	TPS54339E	DC/DC Step Down

Catalog

4.5-V to 23-V input, 3-A synchronous step-down converter with D-CAP2 mode and light load efficiency

Key Features

• D-CAP2 Mode Enables Fast Transient ResponseLow Output Ripple and Allows Ceramic Output CapacitorWide VINInput Voltage Range: 4.5 V to 23 VOutput Voltage Range: 0.76 V to 7.0 VHighly Efficient Integrated FETs Optimizedfor Lower Duty Cycle Applications– 140 mΩ (High Side) and 70 mΩ (Low Side)High Efficiency, less than 10 µA at shutdownHigh Initial Bandgap Reference AccuracyAdjustable Soft StartPre-Biased Soft Start600-kHz Switching Frequency (fSW)Cycle By Cycle Over Current LimitAuto-Skip Eco-mode for High Efficiency at Light LoadD-CAP2 Mode Enables Fast Transient ResponseLow Output Ripple and Allows Ceramic Output CapacitorWide VINInput Voltage Range: 4.5 V to 23 VOutput Voltage Range: 0.76 V to 7.0 VHighly Efficient Integrated FETs Optimizedfor Lower Duty Cycle Applications– 140 mΩ (High Side) and 70 mΩ (Low Side)High Efficiency, less than 10 µA at shutdownHigh Initial Bandgap Reference AccuracyAdjustable Soft StartPre-Biased Soft Start600-kHz Switching Frequency (fSW)Cycle By Cycle Over Current LimitAuto-Skip Eco-mode for High Efficiency at Light Load

Description

The TPS54339E is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54339E enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54339E uses the D-CAP2™ mode control that provides a 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 TPS54339E to maintain high efficiency during lighter load conditions. The TPS54339E also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 7 V. The device also features an adjustable soft start time. The TPS54339E is available in the 8-pin DDA package, and designed to operate from –40°C to 85°C. The TPS54339E is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54339E enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54339E uses the D-CAP2™ mode control that provides a 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 TPS54339E to maintain high efficiency during lighter load conditions. The TPS54339E also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 7 V. The device also features an adjustable soft start time. The TPS54339E is available in the 8-pin DDA package, and designed to operate from –40°C to 85°C.