TPS54394PWPR

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Texas Instruments

3A DUAL CHANNEL SYNCHRONOUS STEP-DOWN SWITCHER WITH INTEGRATED FET

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TPS54394PWPR

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Texas Instruments

3A DUAL CHANNEL SYNCHRONOUS STEP-DOWN SWITCHER WITH INTEGRATED FET

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Description Specifications Series Pricing CAD Documents

Description

General part information

TPS54394 Series

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.

Technical Specifications

Parameters and characteristics for this part

Specification	TPS54394PWPR

Current - Output	3 A
Frequency - Switching	700 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package Length	0.173 in
Package Name	16-HTSSOP, 16-PowerTSSOP
Package Width	4.4 mm
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Input (Max)	18 V
Voltage - Input (Min)	4.5 V
Voltage - Output (Max)	7 V
Voltage - Output (Min/Fixed)	0.76 V

TPS54394 Series

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

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

3A Dual Channel Synchronous Step-Down Switcher with Integrated FET datasheet (Rev. B)

D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On-