Specification	TPS549A20RVET

Current - Output	15 A
Frequency - Switching	Selectable
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	28-VFQFN Exposed Pad
Supplier Device Package	28-VQFN-CLIP
Supplier Device Package [x]	4.5
Supplier Device Package [y]	3.5
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	20 V
Voltage - Input (Min) [Min]	1.5 V
Voltage - Output (Max) [Max]	5.5 V
Voltage - Output (Min/Fixed)	0.6 V

TPS549 Series

1.5-V to 18-V, 25-A synchronous SWIFT™ buck converter with differential remote sense and PMBus

Part	Voltage - Input (Min) [Min]	Frequency - Switching	Voltage - Output (Min/Fixed)	Package / Case	Function	Topology	Output Type	Current - Output	Operating Temperature [Min]	Operating Temperature [Max]	Output Configuration	Voltage - Output (Max) [Max]	Number of Outputs	Voltage - Input (Max) [Max]	Mounting Type	Supplier Device Package	Supplied Contents	Board Type	Outputs and Type	Outputs and Type	Main Purpose	Contents	Regulator Topology	Voltage - Output [Max]	Voltage - Output [Min]	Frequency - Switching	Voltage - Input [Min]	Voltage - Input [Max]	Utilized IC / Part	Voltage - Output	Supplier Device Package [x]	Supplier Device Package [y]
Texas Instruments TPS549B22RVFT	1.5 V	Adjustable	0.6 V	40-PowerLFQFN	Step-Down	Buck	Adjustable	25 A	-40 C	125 °C	Positive	5.5 V	1	18 V	Surface Mount	40-LQFN-CLIP (7x5)
Texas Instruments TPS549B22RVFR	1.5 V	Adjustable	0.6 V	40-PowerLFQFN	Step-Down	Buck	Adjustable	25 A	-40 C	125 °C	Positive	5.5 V	1	18 V	Surface Mount	40-LQFN-CLIP (7x5)
Texas Instruments TPS54972EVM-222								9 A									Board(s)	Fully Populated	1	1 Non-Isolated Output Non-Isolated	DC/DC Step Down	Board(s)	Buck	1.75 V	0.42 V	700 kHz	3 V	4 V	TPS54972
Texas Instruments TPS549D22EVM-784								40 A									Board(s)	Fully Populated	1	1 Non-Isolated Output Non-Isolated	DC/DC Step Down	Board(s)	Buck			650 kHz	5 V	16 V	TPS549D22	1 V
Texas Instruments TPS549B22EVM-847								25 A									Board(s)	Fully Populated	1	1 Non-Isolated Output Non-Isolated	DC/DC Step Down	Board(s)	Buck			650 kHz	5 V	14 V	TPS549B22	1 V
Texas Instruments TPS549A20EVM-737								15 A									Board(s)	Fully Populated	1	1 Non-Isolated Output Non-Isolated	DC/DC Step Down	Board(s)	Buck			1 MHz	5 V	18 V	TPS549A20	1.2 V
Texas Instruments TPS549A20RVET	1.5 V	Selectable	0.6 V	28-VFQFN Exposed Pad	Step-Down	Buck	Adjustable	15 A	-40 °C	125 °C	Positive	5.5 V	1	20 V	Surface Mount	28-VQFN-CLIP															4.5	3.5
Texas Instruments TPS549D22RVFT	4.5 V	Selectable	0.6 V	40-PowerLFQFN	Step-Down	Buck	Adjustable	40 A	-40 °C -40 C	125 ¯C 125 °C	Positive	5.5 V	1	22 V	Surface Mount	40-LQFN-CLIP (7x5)
Texas Instruments TPS549A20RVER	1.5 V	Selectable	0.6 V	28-VFQFN Exposed Pad	Step-Down	Buck	Adjustable	15 A	-40 °C	125 °C	Positive	5.5 V	1	20 V	Surface Mount	28-VQFN-CLIP															4.5	3.5
Texas Instruments TPS549D22RVFR	4.5 V	Selectable	0.6 V	40-PowerLFQFN	Step-Down	Buck	Adjustable	40 A	-40 C	125 °C	Positive	5.5 V	1	22 V	Surface Mount	40-LQFN-CLIP (7x5)

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 9.57
		10	$ 8.65
		25	$ 8.25
		100	$ 7.16
	Digi-Reel®	1	$ 9.57
		10	$ 8.65
		25	$ 8.25
		100	$ 7.16
	N/A	2941	$ 9.12
	Tape & Reel (TR)	250	$ 4.95
Texas Instruments	SMALL T&R	1	$ 7.33
		100	$ 5.97
		250	$ 4.70
		1000	$ 3.98

Description

General part information

TPS549 Series

The TPS549A20 is a small-sized, synchronous buck converter with anadaptive on-time D-CAP3 control mode. The device offers ease-of-use and low bill-of-material countfor space-conscious power systems.

This device features high-performance integrated MOSFETs, accurate 0.6-V reference, andan integrated boost switch. Competitive features include very-low external-component count, fastload-transient response, auto-skip mode operation, internal soft-start control, and no requirementfor compensation. The device also features fault report viaPMBus to simplify the power supply design

A forced continuous conduction mode helps meet tight voltage regulation accuracyrequirements for performance DSPs and FPGAs. The TPS549A20 is available in a28-pin VQFN-CLIP package and is specified from –40°C to 125°C ambient temperature.

Documents

Technical documentation and resources

Buck Converter Quick Reference Guide (Rev. B)

Selection guide

Simplifying loop compensation and poles and zeros calculations

Technical article

TPS549A20 1.5-V to 20-V (4.5-V to 25-V Bias) Input, 15-A Synchronous Step-Down SWIFT™ Converter With PMBus™ datasheet (Rev. A)

Data sheet

DC/DC Converter Solutions for Hardware Accelerators in Data Center Applications (Rev. A)

Application note

TPS549A20 Step-Down Converter Evaluation Module User's Guide (Rev. A)

EVM User's guide

SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC

Application note

Point-of-Load Solutions for Data Center App Implementing VR13.HC Vccin Spec (Rev. A)

Application note