LP8774x-Q1 Three Buck Converters and 5-V Boost for AWR and IWR Radar Sensors

1 Features

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)