TPS544B20RVFR

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Texas Instruments

4.5-V TO 18-V, 20-A SYNCHRONOUS SWIFT™ BUCK CONVERTER WITH PMBUS PROGRAMMABILITY AND MONITORING

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TPS544B20RVFR

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Texas Instruments

4.5-V TO 18-V, 20-A SYNCHRONOUS SWIFT™ BUCK CONVERTER WITH PMBUS PROGRAMMABILITY AND MONITORING

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Description Specifications Series Pricing CAD Documents

Description

General part information

TPS544 Series

The TPS544C26 device is a highly integrated buck converter with D-CAP+ control topology for the fast transient response. All programmable parameters can be configured by the I2C interface and stored in NVM as the new default values to minimize the external component count. These features make the device well-suited for space-constrained applications.

The TPS544C26 device is designed to work with Intel CPUs and fits well for single-phase, low-to-mid current SVID rails in Intel’s server and SoC platforms.

Fault management and status reports for the Overcurrent limit, VOUTOVF/UVF, and OTF are provided on the device. The TPS544C26 device provides a full set of telemetry, including VOUT, IOUT, and IC temperature. Additionally, input power monitoring through an external sensing resistor is provided for board-level power management.

Technical Specifications

Parameters and characteristics for this part

Specification	TPS544B20RVFR

Current - Output	20 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	40-PowerLFQFN
Package Length	7 mm
Package Name	40-LQFN-CLIP
Package Width	5 mm
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Input (Max)	18 V
Voltage - Input (Min)	4.5 V
Voltage - Output (Max)	5.5 V
Voltage - Output (Min/Fixed)	0.6 V

TPS544 Series

4.5-V to 18-V, 20-A synchronous SWIFT™ buck converter with PMBus programmability and monitoring

Part	Package / Case	Function	Voltage - Input (Min)	Voltage - Input (Max)	Output Type	Operating Temperature (Max)	Operating Temperature (Min)	Current - Output	Output Configuration	Package Name	Package Width	Package Length	Synchronous Rectifier	Frequency - Switching (Max)	Frequency - Switching (Min)	Voltage - Output (Min/Fixed)	Voltage - Output (Max)	Number of Outputs	Mounting Type	Topology	Frequency - Switching	Supplied Contents	Total Output Count	Non-Isolated Output Count	Board Type	Main Purpose	Utilized IC / Part	Frequency - Switching	Voltage - Input (Maximum)	Voltage - Input (Minimum)	Voltage - Output	Regulator Topology	Contents
Texas Instruments TPS544B25RVFR	40-PowerLFQFN	Step-Down	4.5 V	18 V	Adjustable	125 °C	-40 °C	20 A	Positive	40-LQFN-CLIP	5 mm	7 mm	Yes	1 MHz	200 kHz	0.5 V	5.5 V	1	Surface Mount	Buck
Texas Instruments TPS544B20RVFR	40-PowerLFQFN	Step-Down	4.5 V	18 V	Adjustable	125 °C	-40 °C	20 A	Positive	40-LQFN-CLIP	5 mm	7 mm	Yes			0.6 V	5.5 V	1	Surface Mount	Buck	Selectable
Texas Instruments TPS544A20RVFT
Texas Instruments TPS544C25RVFT	40-PowerLFQFN	Step-Down	4.5 V	18 V	Adjustable	125 °C	-40 °C	30 A	Positive	40-LQFN-CLIP	5 mm	7 mm	Yes	1 MHz	200 kHz	0.5 V	5.5 V	1	Surface Mount	Buck
Texas Instruments TPS544C20RVFR	40-PowerLFQFN	Step-Down	4.5 V	18 V	Adjustable	125 °C	-40 °C	30 A	Positive	40-LQFN-CLIP	5 mm	7 mm	Yes	1 MHz	250 kHz	0.6 V	5.5 V	1	Surface Mount	Buck
Texas Instruments TPS544B20EVM-634					Non-Isolated			20 A														Board(s)	1	1 count	Fully Populated	DC/DC Step Down	TPS544B20	500 kHz	14 V	8 V	1 V	Buck	Board
Texas Instruments TPS544C22RVFT
Texas Instruments TPS544B20RVFT	40-PowerLFQFN	Step-Down	4.5 V	18 V	Adjustable	125 °C	-40 °C	20 A	Positive	40-LQFN-CLIP	5 mm	7 mm	Yes			0.6 V	5.5 V	1	Surface Mount	Buck	Selectable
Texas Instruments TPS544A22RVFR
Texas Instruments TPS544C20RVFT	40-PowerLFQFN	Step-Down	4.5 V	18 V	Adjustable	125 °C	-40 °C	30 A	Positive	40-LQFN-CLIP	5 mm	7 mm	Yes	1 MHz	250 kHz	0.6 V	5.5 V	1	Surface Mount	Buck