The TPS7B4250-Q1 device is a monolithic, integrated low-dropout voltage tracker. The device is available in a SOT-23 package. The TPS7B4250-Q1 device is designed to supply off-board sensors in an automotive environment. The IC has integrated protection for overload, over temperature, reverse polarity, and output short-circuit to the battery and ground.
A reference voltage applied at the adjust-input pin, ADJ, regulates supply voltages up to VIN = 45 V with high accuracy and loads up to 50 mA.
By setting the adjust/enable input pin, ADJ/EN, to low, the TPS7B4250-Q1 device switches to standby mode which reduces the quiescent current to the minimum value.
For all available packages, see the orderable addendum at the end of the data sheet.
Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results
Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
Device HBM ESD Classification Level 3A
Device CDM ESD Classification Level C6
–20-V to 45-V Wide, Maximum Input Voltage Range
Output Current, 50 mA
Very-Low Output-Tracking Tolerance,
5 mV (max)
150-mV Low Dropout Voltage When
IOUT = 10 mA
Combined Reference and Enable Input
40-µA Low Quiescent Current at Light Load
Extreme, Wide ESR Range.
Stable with 1-µF to 50-µF Ceramic Output Capacitor, ESR 1 mΩ to 20 Ω
Reverse Polarity Protection
Overtemperature Protection
Output Short-Circuit Proof to Ground and Supply
SOT-23 Package
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