Specification	TPS7B4253QPWPRQ1

Control Features	Enable
Current - Output	300 mA
Current - Quiescent (Iq)	18 µA
Current - Supply (Max) [Max]	400 µA
Grade	Automotive
Mounting Type	Surface Mount
Number of Regulators	1
Output Configuration	Positive
Output Type	Adjustable
Package / Case	20-PowerTSSOP
Package / Case	0.173 in
Package / Case [custom]	4.4 mm
Protection Features	Over Temperature, Over Current, Under Voltage Lockout (UVLO), Reverse Polarity
PSRR	70 dB
Qualification	AEC-Q100
Supplier Device Package	20-HTSSOP
Voltage - Output (Max) [Max]	40 V
Voltage - Output (Min/Fixed)	1.5 V
Voltage Dropout (Max) [Max]	0.52 V

TPS7B4253-Q1 Series

Automotive 300-mA, off-battery (40-V), adjustable voltage-tracking low-dropout voltage regulator

Part	Protection Features	Current - Quiescent (Iq)	Voltage Dropout (Max) [Max]	Voltage - Output (Min/Fixed)	Mounting Type	Number of Regulators	Current - Output	Current - Supply (Max) [Max]	Grade	Voltage - Output (Max) [Max]	Output Type	Qualification	Package / Case	Package / Case [custom]	Package / Case	Supplier Device Package	Control Features	Output Configuration	PSRR	Package / Case [y]	Package / Case [x]
Texas Instruments TPS7B4253QPWPRQ1	Over Current Over Temperature Reverse Polarity Under Voltage Lockout (UVLO)	18 µA	0.52 V	1.5 V	Surface Mount	1	300 mA	400 µA	Automotive	40 V	Adjustable	AEC-Q100	20-PowerTSSOP	4.4 mm	0.173 in	20-HTSSOP	Enable	Positive	70 dB
Texas Instruments TPS7B4253QDDARQ1	Over Current Over Temperature Reverse Polarity Under Voltage Lockout (UVLO)	18 µA	0.52 V	1.5 V	Surface Mount	1	300 mA	400 µA	Automotive	40 V	Adjustable	AEC-Q100	8-PowerSOIC			8-SO PowerPad		Positive	70 dB	3.9 mm	0.154 in

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	$ 2.46
		10	$ 2.21
		25	$ 2.08
		100	$ 1.77
		250	$ 1.66
		500	$ 1.46
		1000	$ 1.21
	Digi-Reel®	1	$ 2.46
		10	$ 2.21
		25	$ 2.08
		100	$ 1.77
		250	$ 1.66
		500	$ 1.46
		1000	$ 1.21
	Tape & Reel (TR)	2000	$ 1.12
		6000	$ 1.08
Texas Instruments	LARGE T&R	1	$ 1.85
		100	$ 1.52
		250	$ 1.09
		1000	$ 0.82

Description

General part information

TPS7B4253-Q1 Series

For automotive off-board sensors and small current off-board modules, the power supply is through a long cable from the main board. In such cases, protection is required in the power devices for the off-board loads to prevent the onboard components from damage during a short to GND or short to battery caused by a broken cable. Off-board sensors require consistent power supply as onboard components to secure high accuracy of data acquisition.

The TPS7B4253-Q1 device is designed for automotive applications with a 45-V load dump. The device can either be used as one tracking low-dropout (LDO) regulator or voltage tracker to build one closed power loop for off-board sensors with an onboard main supply. The output of the device is accurately regulated by a reference voltage at the ADJ pin.

To provide an accurate power supply to the off-board modules, the device offers a 4-mV ultralow tracking tolerance between the ADJ and FB pins across temperature. The back-to-back PMOS topology eliminates the need for an external diode under reverse polarity condition. The TPS7B4253-Q1 device also includes thermal shutdown, inductive clamp, overload, and short-to-battery protection to prevent damage to onboard components during extreme conditions.