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The TPS7B8401QWDRBRQ1 is a low-dropout linear regulator designed specifically for connecting batteries in automotive applications. The device has an input voltage range up to 40V and can withstand transients that may occur in automotive systems (such as sudden load drops). It features high output current, low quiescent current, and excellent line transient response characteristics, making it suitable for automotive gateway, remote keyless entry (RKE), and other always-on battery connection applications.

TPS7B8401QWDRBRQ1 Product Features

Compliant with AEC-Q100 standards:

Temperature grade 1: -40°C to +125°C (TA).

Junction temperature: -40°C to +150°C (TJ).

Input voltage range: 3V to 40V (maximum 42V).

Output voltage range:  

Adjustable output: 1.2V to 18V.  

Fixed output: 3.3V and 5V.  

Output current: up to 150mA.  

Output voltage accuracy: ±0.75% (maximum).  

Low dropout voltage:  

225mV (maximum) at 150mA (VOUT ≥ 3.3V).

Low quiescent current:  

18µA (typical).  

Maximum of 4µA when disabled.

Excellent line transient response:  

±2% VOUT deviation during cold start.  

±2% VOUT deviation (VIN slew rate 1V/µs).

Stability: Maintains stability when used with a 2.2µF or higher capacitor.

Functional safety support: Documentation to assist in functional safety system design.

TPS7B8401QWDRBRQ1 Product Specifications

Package: VSON (DRB) 8-pin package, dimensions 3mm × 3mm.

Quiescent current: 26µA.  

PSRR: 55dB (1kHz).  

Protection features: Overcurrent, over-temperature, under-voltage lockout (UVLO).

TPS7B8401QWDRBRQ1 Application Areas

Automotive Electronics:  

Reconfigurable instrument clusters.  

Body control modules (BCM).  

Always-on battery connection applications, such as automotive gateways and remote keyless entry (RKE).  

Other Applications: Suitable for power management applications requiring high precision, low power consumption, wide input voltage range, and fast transient response, such as power modules for industrial automation equipment and power management for communication devices.

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

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• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.