Specification	TPS628112AQWRWYRQ1

Current - Output	1 A
Frequency - Switching [Max]	4 MHz
Frequency - Switching [Min]	1.8 MHz
Function	Step-Down
Grade	Automotive
Mounting Type	Wettable Flank, Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	9-VFQFN
Qualification	AEC-Q100
Supplier Device Package	9-VQFN-HR (3x2)
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	6 V
Voltage - Input (Min) [Min]	2.75 V
Voltage - Output (Min/Fixed)	1.2 V

TPS62811-Q1 Series

Automotive 2.75-V to 6-V, 1-A step-down converter in a 2mm x 3mm wettable-flanks QFN package

Part	Function	Qualification	Supplier Device Package	Current - Output	Number of Outputs	Output Type	Mounting Type	Topology	Voltage - Input (Min) [Min]	Output Configuration	Voltage - Input (Max) [Max]	Package / Case	Grade	Voltage - Output (Min/Fixed)	Frequency - Switching [Max]	Frequency - Switching [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Output (Max) [Max]	Output Type
Texas Instruments TPS628112AQWRWYRQ1	Step-Down	AEC-Q100	9-VQFN-HR (3x2)	1 A	1	1.81 mOhm	Surface Mount Wettable Flank	Buck	2.75 V	Positive	6 V	9-VFQFN	Automotive	1.2 V	4 MHz	1.8 MHz	-40 °C	125 °C
Texas Instruments TPS628112MQWRWYRQ1	Step-Down	AEC-Q100	9-VQFN-HR (3x2)	1 A	1	1.81 mOhm	Surface Mount Wettable Flank	Buck	2.75 V	Positive	6 V	9-VFQFN	Automotive	1.8 V	4 MHz	1.8 MHz	-40 °C	125 °C
Texas Instruments TPS6281109QWRWYRQ1	Step-Down	AEC-Q100	9-VQFN-HR (3x2)	1 A	1	1.81 mOhm	Surface Mount Wettable Flank	Buck	2.75 V	Positive	6 V	9-VFQFN	Automotive	1.15 V	4 MHz	1.8 MHz	-40 °C	125 °C
Texas Instruments TPS628113HQWRWYRQ1	Step-Down	AEC-Q100	9-VQFN-HR (3x2)	1 A	1	1.81 mOhm	Surface Mount Wettable Flank	Buck	2.75 V	Positive	6 V	9-VFQFN	Automotive	3.3 V	4 MHz	1.8 MHz	-40 °C	125 ¯C
Texas Instruments TPS628110AQWRWYRQ1	Step-Down	AEC-Q100	9-VQFN-HR (3x2)	1 A	1		Surface Mount Wettable Flank	Buck	2.75 V	Positive	6 V	9-VFQFN	Automotive	0.6 V	4 MHz	1.8 MHz	-40 °C	125 °C	5.5 V	Adjustable

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	$ 2.12
		10	$ 1.90
		25	$ 1.79
		100	$ 1.53
		250	$ 1.43
		500	$ 1.25
		1000	$ 1.04
	Digi-Reel®	1	$ 2.12
		10	$ 1.90
		25	$ 1.79
		100	$ 1.53
		250	$ 1.43
		500	$ 1.25
		1000	$ 1.04
	Tape & Reel (TR)	3000	$ 0.97
		6000	$ 0.93
Texas Instruments	LARGE T&R	1	$ 1.59
		100	$ 1.31
		250	$ 0.94
		1000	$ 0.71

Description

General part information

TPS62811-Q1 Series

The TPS6281x-Q1 is family of pin-to-pin 1-A, 2-A, 3-A, and 4-A synchronous step-down DC/DC converters. All devices offer high efficiency and ease of use. The TPS6281x-Q1 family is based on a peak current mode control topology. The TPS6281x-Q1 is designed for automotive applications such as infotainment and advanced driver assistance systems. Low resistive switches allow up to 4-A continuous output current at high ambient temperature. The switching frequency is externally adjustable from 1.8 MHz to 4 MHz and can also be synchronized to an external clock in the same frequency range. In PWM/PFM mode, the TPS6281x-Q1 automatically enter power save mode at light loads to maintain high efficiency across the whole load range. The TPS6281x-Q1 provide 1% output voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy. The SS/TR pin allows setting the start-up time or forming tracking of the output voltage to an external source. This feature allows external sequencing of different supply rails and limiting the inrush current during start-up.

The TPS6281x-Q1 is available in a 3-mm × 2-mm VQFN package with wettable flanks.