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LP877442A9RXVRQ1 device is designed to meet the power management requirements of the AWR and IWR MMICs in various automotive and industrial radar applications. The device has three step-down DC/DC converters, a 5V boost converter and a 1.8V or 3.3V LDO. The LDO is powered from the boost and intended for xWR I/O supply. An SPI serial interface and enable signals control the device.

Features Of LP877442A9RXVRQ1

AEC-Q100 qualified with the following results:

Device temperature grade 1: –40°C to +125°C ambient operating temperature

Functional safety-compliant device

Developed for functional safety applications

Documentation available to aid ISO 26262 functional safety system design up to ASIL-C / SIL-2

Input supply overvoltage and undervoltage monitoring

Regulator output overvoltage and undervoltage monitoring

Overvoltage and undervoltage monitoring for one external rail

Q&A watchdog

Level or PWM error signal monitor (ESM)

BIST and CRC

Input voltage: 3.3V nominal (3V to 4V range)

Three low-noise step-down DC/DC converters:

Output voltage: 0.9V to 1.9V, 0.8V (BUCK3), 0.82V (BUCK3)

Maximum output current: 3A/ 3A/ 3A

Switching frequency: 4.4MHz, 8.8MHz, and 17.6MHz

5V boost converter

Maximum output current: 350mA

150mA LDO

Output voltage 1.8V or 3.3V

Output short-circuit and overload protection

Input overvoltage protection (OVP) and undervoltage lockout (UVLO)

Overtemperature warning and protection

Serial peripheral interface (SPI)

Applications Of LP877442A9RXVRQ1

Short and medium range corner radar

Long range front radar

Ultra-short range radar

Low ripple, low noise applications

• 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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• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

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