TPS53321RGTR

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Texas Instruments

2.9V TO 6V, 5-A STEP-DOWN CONVERTER WITH INTEGRATED MOSFETS

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DocumentsUnified Ground Connection Recommendation on TPS53K- Integrated FET-Converter Dev TPS53321 5-A Step-Down Regulator With Integrated Switcher datasheet (Rev. A)

TPS53321RGTR

Active

Texas Instruments

2.9V TO 6V, 5-A STEP-DOWN CONVERTER WITH INTEGRATED MOSFETS

Deep-Dive with AI

DocumentsUnified Ground Connection Recommendation on TPS53K- Integrated FET-Converter Dev TPS53321 5-A Step-Down Regulator With Integrated Switcher datasheet (Rev. A)

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics commom to parts in this series

Specification	TPS53321RGTR	TPS53321 Series

Current - Output	5 A	5 A
Frequency - Switching	1.1 MHz	1.1 MHz
Function	Step-Down	Step-Down
Mounting Type	Surface Mount	Surface Mount
Number of Outputs	1	1
Operating Temperature [Max]	85 °C	85 °C
Operating Temperature [Min]	-40 °C	-40 °C
Output Configuration	Positive	Positive
Output Type	Adjustable	Adjustable
Package / Case	16-VFQFN Exposed Pad	16-VFQFN Exposed Pad
Supplier Device Package	16-VQFN (3x3)	16-VQFN (3x3)
Synchronous Rectifier	True	True
Topology	Buck	Buck
Voltage - Input (Max) [Max]	6 V	6 V
Voltage - Input (Min) [Min]	2.9 V	2.9 V
Voltage - Output (Max) [Max]	5.04 V	5.04 V
Voltage - Output (Min/Fixed)	0.6 V	0.6 V

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	$ 2.75
		10	$ 2.47
		25	$ 2.33
		100	$ 1.99
		250	$ 1.87
		500	$ 1.63
		1000	$ 1.35
	Digi-Reel®	1	$ 2.75
		10	$ 2.47
		25	$ 2.33
		100	$ 1.99
		250	$ 1.87
		500	$ 1.63
		1000	$ 1.35
	Tape & Reel (TR)	3000	$ 1.26
		6000	$ 1.21
Texas Instruments	LARGE T&R	1	$ 1.87
		100	$ 1.64
		250	$ 1.15
		1000	$ 0.92

TPS53321 Series

2.9V to 6V, 5-A Step-Down Converter with Integrated MOSFETs

Part	Voltage - Input (Max) [Max]	Synchronous Rectifier	Frequency - Switching	Voltage - Output (Max) [Max]	Current - Output	Output Configuration	Voltage - Input (Min) [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Function	Package / Case	Topology	Supplier Device Package	Voltage - Output (Min/Fixed)	Mounting Type	Number of Outputs	Output Type
Texas Instruments TPS53321RGTT The TPS53321 device provides a fully integrated 3-V to 5-V VINintegrated synchronous FET converter solution with 16 total components in 200 mm2of PCB area. Due to the low ON-resistance and TI’s Proprietary SmoothPWM™ skip mode of operation, it enables 96% peak efficiency and over 90% efficiency at loads as light as 100 mA. It requires only two 22-µF ceramic output capacitors for a power dense 5-A solution. The TPS53321 features a 1.1-MHz switching frequency, skip mode operation support, prebias start-up, internal soft start, output soft discharge, internal VBST switch, power good, EN/input UVLO, overcurrent, overvoltage, undervoltage, and overtemperature protections, and all ceramic output capacitor support. It supports supply voltage from 2.9 V to 3.5 V and conversion voltage from 2.9 V to 6 V. The output voltage is adjustable from 0.6 V to 0.84 V × VIN. The TPS53321 is available in the 3 mm × 3 mm 16-pin QFN package (Green RoHs compliant and Pb free) and operates between –40°C and 85°C. The TPS53321 device provides a fully integrated 3-V to 5-V VINintegrated synchronous FET converter solution with 16 total components in 200 mm2of PCB area. Due to the low ON-resistance and TI’s Proprietary SmoothPWM™ skip mode of operation, it enables 96% peak efficiency and over 90% efficiency at loads as light as 100 mA. It requires only two 22-µF ceramic output capacitors for a power dense 5-A solution. The TPS53321 features a 1.1-MHz switching frequency, skip mode operation support, prebias start-up, internal soft start, output soft discharge, internal VBST switch, power good, EN/input UVLO, overcurrent, overvoltage, undervoltage, and overtemperature protections, and all ceramic output capacitor support. It supports supply voltage from 2.9 V to 3.5 V and conversion voltage from 2.9 V to 6 V. The output voltage is adjustable from 0.6 V to 0.84 V × VIN. The TPS53321 is available in the 3 mm × 3 mm 16-pin QFN package (Green RoHs compliant and Pb free) and operates between –40°C and 85°C.	6 V		1.1 MHz	5.04 V	5 A	Positive	2.9 V	85 °C	-40 °C	Step-Down	16-VFQFN Exposed Pad	Buck	16-VQFN (3x3)	0.6 V	Surface Mount	1	Adjustable
Texas Instruments TPS53321RGTR The TPS53321 device provides a fully integrated 3-V to 5-V VINintegrated synchronous FET converter solution with 16 total components in 200 mm2of PCB area. Due to the low ON-resistance and TI’s Proprietary SmoothPWM™ skip mode of operation, it enables 96% peak efficiency and over 90% efficiency at loads as light as 100 mA. It requires only two 22-µF ceramic output capacitors for a power dense 5-A solution. The TPS53321 features a 1.1-MHz switching frequency, skip mode operation support, prebias start-up, internal soft start, output soft discharge, internal VBST switch, power good, EN/input UVLO, overcurrent, overvoltage, undervoltage, and overtemperature protections, and all ceramic output capacitor support. It supports supply voltage from 2.9 V to 3.5 V and conversion voltage from 2.9 V to 6 V. The output voltage is adjustable from 0.6 V to 0.84 V × VIN. The TPS53321 is available in the 3 mm × 3 mm 16-pin QFN package (Green RoHs compliant and Pb free) and operates between –40°C and 85°C. The TPS53321 device provides a fully integrated 3-V to 5-V VINintegrated synchronous FET converter solution with 16 total components in 200 mm2of PCB area. Due to the low ON-resistance and TI’s Proprietary SmoothPWM™ skip mode of operation, it enables 96% peak efficiency and over 90% efficiency at loads as light as 100 mA. It requires only two 22-µF ceramic output capacitors for a power dense 5-A solution. The TPS53321 features a 1.1-MHz switching frequency, skip mode operation support, prebias start-up, internal soft start, output soft discharge, internal VBST switch, power good, EN/input UVLO, overcurrent, overvoltage, undervoltage, and overtemperature protections, and all ceramic output capacitor support. It supports supply voltage from 2.9 V to 3.5 V and conversion voltage from 2.9 V to 6 V. The output voltage is adjustable from 0.6 V to 0.84 V × VIN. The TPS53321 is available in the 3 mm × 3 mm 16-pin QFN package (Green RoHs compliant and Pb free) and operates between –40°C and 85°C.	6 V		1.1 MHz	5.04 V	5 A	Positive	2.9 V	85 °C	-40 °C	Step-Down	16-VFQFN Exposed Pad	Buck	16-VQFN (3x3)	0.6 V	Surface Mount	1	Adjustable

Description

General part information

TPS53321 Series

The TPS53321 device provides a fully integrated 3-V to 5-V VINintegrated synchronous FET converter solution with 16 total components in 200 mm2of PCB area. Due to the low ON-resistance and TI’s Proprietary SmoothPWM™ skip mode of operation, it enables 96% peak efficiency and over 90% efficiency at loads as light as 100 mA. It requires only two 22-µF ceramic output capacitors for a power dense 5-A solution.

The TPS53321 features a 1.1-MHz switching frequency, skip mode operation support, prebias start-up, internal soft start, output soft discharge, internal VBST switch, power good, EN/input UVLO, overcurrent, overvoltage, undervoltage, and overtemperature protections, and all ceramic output capacitor support. It supports supply voltage from 2.9 V to 3.5 V and conversion voltage from 2.9 V to 6 V. The output voltage is adjustable from 0.6 V to 0.84 V × VIN.

The TPS53321 is available in the 3 mm × 3 mm 16-pin QFN package (Green RoHs compliant and Pb free) and operates between –40°C and 85°C.

Documents

Technical documentation and resources

Unified Ground Connection Recommendation on TPS53K- Integrated FET-Converter Dev

Application note

TPS53321 5-A Step-Down Regulator With Integrated Switcher datasheet (Rev. A)

Data sheet