TPS53353 Series

High-efficiency 1.5-V to 15-V, 20-A synchronous SWIFT™ buck converter with eco-mode

Catalog

High-efficiency 1.5-V to 15-V, 20-A synchronous SWIFT™ buck converter with eco-mode

Part	Current - Output	Frequency - Switching [Max]	Frequency - Switching [Min]	Voltage - Input (Max) [Max]	Topology	Package / Case	Function	Output Type	Voltage - Output (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Voltage - Input (Min) [Min]	Voltage - Output (Min/Fixed)	Number of Outputs	Supplier Device Package	Output Configuration	Regulator Topology	Frequency - Switching	Voltage - Input [Max]	Voltage - Input [Min]	Utilized IC / Part	Board Type	Supplied Contents	Main Purpose	Outputs and Type	Outputs and Type	Voltage - Output
Texas Instruments TPS53353DQPR	20 A	1 MHz	250 kHz	15 V	Buck	22-PowerLFDFN	Step-Down	Adjustable	5.5 V	85 °C	-40 °C	Surface Mount	1.5 V	0.6 V	1	22-LSON-CLIP (6x5)	Positive
Texas Instruments TPS53353EVM-744	20 A																	Buck	500 kHz	14 V	8 V	TPS53353	Fully Populated	Board(s)	DC/DC Step Down	Non-Isolated	1	1.5 V
Texas Instruments TPS53353DQPT	20 A	1 MHz	250 kHz	15 V	Buck	22-PowerLFDFN	Step-Down	Adjustable	5.5 V	85 °C	-40 °C	Surface Mount	1.5 V	0.6 V	1	22-LSON-CLIP (6x5)	Positive

Catalog

High-efficiency 1.5-V to 15-V, 20-A synchronous SWIFT™ buck converter with eco-mode

Key Features

• New product available:TPS548B28 16-V, 20-A synchronous-buck converter with remote senseConversion input voltage range: 1.5 V to 15 VVDD input voltage range: 4.5 V to 25 V92% efficiency from 12 V to 1.5 V at 20 AOutput voltage range: 0.6 V to 5.5 V5-V LDO outputSupports single-rail inputIntegrated power MOSFETs with 20 A of continuous output currentAuto-skip Eco-mode™ for light-load efficiency< 10-µA shutdown currentD-CAP™ mode with fast transient responseSelectable switching frequency from 250 kHz to 1 MHz with external resistorSelectable auto-skip or PWM-only operationBuilt-in 1% 0.6-V reference0.7-ms, 1.4-ms, 2.8-ms, and 5.6-ms selectable internal voltage servo soft startIntegrated boost switchPrecharged start-up capabilityAdjustable overcurrent limit with thermal compensationOvervoltage, undervoltage, UVLO, and overtemperature protectionSupports all ceramic output capacitorsOpen-drain power-good indicationIncorporates NexFET™ power block technology22-pin QFN package with PowerPAD™For SWIFT™ power products documentation, seehttp://www.ti.com/swiftNew product available:TPS548B28 16-V, 20-A synchronous-buck converter with remote senseConversion input voltage range: 1.5 V to 15 VVDD input voltage range: 4.5 V to 25 V92% efficiency from 12 V to 1.5 V at 20 AOutput voltage range: 0.6 V to 5.5 V5-V LDO outputSupports single-rail inputIntegrated power MOSFETs with 20 A of continuous output currentAuto-skip Eco-mode™ for light-load efficiency< 10-µA shutdown currentD-CAP™ mode with fast transient responseSelectable switching frequency from 250 kHz to 1 MHz with external resistorSelectable auto-skip or PWM-only operationBuilt-in 1% 0.6-V reference0.7-ms, 1.4-ms, 2.8-ms, and 5.6-ms selectable internal voltage servo soft startIntegrated boost switchPrecharged start-up capabilityAdjustable overcurrent limit with thermal compensationOvervoltage, undervoltage, UVLO, and overtemperature protectionSupports all ceramic output capacitorsOpen-drain power-good indicationIncorporates NexFET™ power block technology22-pin QFN package with PowerPAD™For SWIFT™ power products documentation, seehttp://www.ti.com/swift

Description

TPS53353 is a D-CAP™ mode, 20-A synchronous switcher with integrated MOSFETs. It is designed for ease of use, low external component count, and space-conscious power systems. This device features 5.5-mΩ / 2.2-mΩ integrated MOSFETs, accurate 1%, 0.6-V reference, and integrated boost switch. A sample of competitive features include: a conversion input voltage range from 1.5 V to 15 V, very low external component count, D-CAP™ mode control for super fast transient, auto-skip mode operation, internal soft-start control, selectable frequency, and no need for compensation. The conversion input voltage ranges from 1.5 V to 15 V, the supply voltage range is from 4.5 V to 25 V, and the output voltage range is from 0.6 V to 5.5 V. The device is available in 5-mm × 6-mm, 22-pin QFN package and is specified from –40°C to 85°C. TheTPS548B28is a newer 20A device designed for data center applications with a smaller, Pb-free package. TPS53353 is a D-CAP™ mode, 20-A synchronous switcher with integrated MOSFETs. It is designed for ease of use, low external component count, and space-conscious power systems. This device features 5.5-mΩ / 2.2-mΩ integrated MOSFETs, accurate 1%, 0.6-V reference, and integrated boost switch. A sample of competitive features include: a conversion input voltage range from 1.5 V to 15 V, very low external component count, D-CAP™ mode control for super fast transient, auto-skip mode operation, internal soft-start control, selectable frequency, and no need for compensation. The conversion input voltage ranges from 1.5 V to 15 V, the supply voltage range is from 4.5 V to 25 V, and the output voltage range is from 0.6 V to 5.5 V. The device is available in 5-mm × 6-mm, 22-pin QFN package and is specified from –40°C to 85°C. TheTPS548B28is a newer 20A device designed for data center applications with a smaller, Pb-free package.