1 General description

The VR5510 is an automotive multi-output power management IC that focuses on gateway, in-vehicle networks, domain controllers, telematics, and vehicle-to-x (V2X) communications. The device includes multiple highefficiency switch modes and linear voltage regulators. It offers external frequency synchronization on inputs and outputs for optimized system electromagnetic compatibility (EMC) performance. The VR5510 includes enhanced safety features with fail-safe outputs. The device covers automotive safety integrity level (ASIL) B and ASIL D safety integrity levels. It complies with the ISO 26262 standard and is qualified in accordance with AEC-Q100 rev H (Grade1, MSL3). The VR5510 can be fully utilized in safetyoriented system partitioning and can also be configured to operate as a nonsafety quality management (QM) version part.

The VR5510 is available in several versions that support various safety applications and offer numerous choices with respect to the number of output rails, output voltage settings, operating frequencies, and power-up sequencing.

3 Features and benefits

• 60 VDC maximum input voltage

• VPRE synchronous buck controller with external MOSFETs; configurable output voltage, switching frequency,

and current capability up to 10 A

• Low-voltage integrated synchronous BUCK1 and BUCK2 converters dedicated to MCU core supply with SVS/

DVS capability; configurable output voltage and current capability up to 3.6 A peak; dual-phase operation to

extend the current capability up to 7.2 A peak

• Low-voltage integrated synchronous BUCK3 converter; configurable output voltage and current capability up

to 3.6 A peak

• BOOST converter with integrated low-side switch; configurable output voltage and input current capability up

to 2.25 A peak

• 3x linear voltage regulators (LDOx) for MCU IOs, double-data rate (DDR) and analog-to-digital converter

(ADC) supplies; configurable output voltage and current capability up to 400 mA

• High-voltage linear regulator (HVLDO) with current capability up to 10 mA in low dropout (LDO) mode and 100

mA in Switch mode

• EMC optimization techniques, including switch-mode power supply (SMPS) frequency synchronization,

spread spectrum, slew rate control, manual frequency tuning

• Low-power standby mode with very low quiescent current (35 μA with VPRE and HVLDO on)

• 2x input pins for wake-up detection and battery voltage sense

• Device control via I2C interface with cyclic redundancy check (CRC) (up to 3.4 MHz)

• Dual device operation possible via dedicated synchronization pin

• Scalable portfolio from QM to ASIL B to ASIL D with independent monitoring circuitry, dedicated interface for

MCU monitoring, simple and challenger watchdog function, power good, Reset and Interrupt, built-in self-test

(BIST), fail-safe output

• Configuration by one-time programmable (OTP) programming; prototype enablement to support custom setting during project development in engineering mode

4 Applications

• Gateway

• In-vehicle Networks

• Domain controllers

• Telematics

• V2X communications