1 Features
• AEC-Q100 Qualified with the following results:
– Input voltage: 3.0 V to 5.5 V
– Device temperature grade 1: –40°C to +125°C
ambient operating temperature range
– Device HBM ESD classification Level 2
– Device CDM ESD classification Level C4B
• Functional Safety-Compliant
– Developed for functional safety applications
– Documentation available to aid ISO 26262
system design up to ASIL-D
– Documentation available to aid IEC 61508
system design up to SIL-3
– Systematic capability up to ASIL-D
– Hardware integrity up to ASIL-D
– Windowed voltage and over-current monitors
– Watchdog with selectable trigger / Q&A mode
– Level or PWM error signal monitoring (ESM)
– Thermal monitoring with high temperature
warning and thermal shutdown
– Bit-integrity (CRC) error detection on
configuration registers and non-volatile memory
• 4 high-efficiency step-down DC/DC converters:
– Output voltage: 0.9 V to 1.9 V
– Maximum output current: 4/3/3/2 A
– Programmable output voltage slew-rate: 0.5
mV/μs to 33 mV/μs
– Switching frequency: 8.8 MHz
• 10 configurable general purpose I/O (GPIO)
• SPMI interface for multi-PMIC synchronization
• Input overvoltage monitor (OVP) and undervoltage
lockout (UVLO)

2 Applications
• Imaging radar using cascaded configuration
• Long range radar
• Radar module without processing

3 Description
The LP876242-Q1 device is designed to meet
the power management requirements of the latest
processors and platforms in various safety-relevant
automotive and industrial applications. The device has
four step-down DC/DC converter cores, generating
four 1-phase outputs. The device settings can be
changed by I2C-compatible serial interface or by a
SPI serial interface.
The switching clock is forced to PWM mode and
the phases are interleaved. The switching can
be synchronized to an external clock and spreadspectrum
mode can be enabled to minimize the
disturbances.
The LP876242-Q1 device includes protection and
diagnostic mechanisms such as register and interface
CRC, short-circuit protection, thermal monitoring, and
shutdown. The LP876242-Q1 device can notify the
processor of these events through the interrupt
handler, allowing the processor to take action in
response.