Specification	TPS65253RHDT

Current - Output	3.5 A, 2.5 A
Frequency - Switching [Max]	1.2 MHz
Frequency - Switching [Min]	300 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 / Case	28-VFQFN Exposed Pad
Supplier Device Package	28-VQFN (5x5)
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	16 V
Voltage - Input (Min) [Min]	4.5 V
Voltage - Output (Min/Fixed)	0.8 V

TPS65253 Series

4.5V to 16V input, 2.5A/3.5A output Dual Buck Converter

Part	Output Type	Output Configuration	Voltage - Input (Min) [Min]	Voltage - Input (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output (Min/Fixed)	Current - Output	Topology	Frequency - Switching [Min]	Frequency - Switching [Max]	Supplier Device Package	Number of Outputs	Function	Mounting Type	Package / Case	Regulator Topology	Supplied Contents	Outputs and Type	Outputs and Type	Voltage - Output [Min]	Voltage - Output [Max]	Utilized IC / Part	Board Type	Main Purpose	Voltage - Input [Max]	Voltage - Input [Min]
Texas Instruments TPS65253RHDT	Adjustable	Positive	4.5 V	16 V	85 °C	-40 °C	0.8 V	2.5 A 3.5 A	Buck	300 kHz	1.2 MHz	28-VQFN (5x5)	2	Step-Down	Surface Mount	28-VFQFN Exposed Pad
Texas Instruments TPS65253RHDR	Adjustable	Positive	4.5 V	16 V	85 °C	-40 °C	0.8 V	2.5 A 3.5 A	Buck	300 kHz	1.2 MHz	28-VQFN (5x5)	2	Step-Down	Surface Mount	28-VFQFN Exposed Pad
Texas Instruments TPS65253EVM								3 A 4 A		300 kHz	1.2 MHz						Buck	Board(s)	2	Non-Isolated	0.8 V	15 V	TPS65253	Fully Populated	DC/DC Step Up	16 V	4.5 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	$ 4.98
		10	$ 4.47
		25	$ 4.22
		100	$ 3.66
	Digi-Reel®	1	$ 4.98
		10	$ 4.47
		25	$ 4.22
		100	$ 3.66
	Tape & Reel (TR)	250	$ 2.83
		500	$ 2.65
		750	$ 2.56
		1250	$ 2.46
		1750	$ 2.41
		2500	$ 2.35
Texas Instruments	SMALL T&R	1	$ 3.75
		100	$ 3.29
		250	$ 2.31
		1000	$ 1.86

Description

General part information

TPS65253 Series

The TPS65253 features two synchronous wide input range high efficiency buck converters. The converters are designed to simplify product application while giving designers the options to optimize their usage according to the target application.

The converters can operate in 5-, 9- and 12-V systems and have integrated power transistors. The output voltage can be set externally using a resistor divider to any value between 0.8 V and the input supply minus 1 V. Each converter features an enable pin that allows a delayed start-up for sequencing purposes, soft-start pin that allows adjustable soft-start time by choosing the soft-start capacitor, and a current limit (RLIMx) pin that enables designer to adjust current limit by selecting an external resistor and optimize the choice of inductor. The CMP pin allows optimizing transient versus dc accuracy response with a simple RC compensation.

The switching frequency of the converters is set by an external resistor connected to ROSCpin. The switching regulators are designed to operate from 300 kHz to 1.2 MHz. The converters operate with 180° phase between then to minimize the input filter requirements.

Documents

Technical documentation and resources

TPS65253 Buck Converter Evaluation Module User's Guide (Rev. B)

EVM User's guide

Power Management Guide 2018 (Rev. R)

Selection guide

4.5 V - 16 V IN, HIGH CURRENT, SYNCH. STEP DOWN DUAL BUCK CONVERTER w/ Int FETS datasheet

Data sheet

TPS65250/1/2/3 Output Filter Selection Guidelines

Application note

TPS65250/1/2/3 LAYOUT GUIDE

Application note