LP8764-Q1中文资料适用于汽车 SoC 且具有功能安全特性的 4x 5A (20A) 多相降压转换器 PMIC数据手册TI规格书

描述 Description

The LP8764-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, which are configurable for five different configurations: one 4-phase output, one 3-phase and one 1-phase outputs, one 2-phase and two 1-phase outputs, four 1-phase outputs, or two 2-phase outputs. Most of the device static settings can be changed by I2C-compatible serial interface or by a SPI serial interface.

The automatic PFM/PWM (AUTO mode) operation together with the automatic phase adding and phase shedding maximizes efficiency over a wide output-current range. The LP8764-Q1 device supports remote differential voltage sensing for multiphase outputs to compensate IR drop between the regulator output and the point-of-load (POL) which improves the accuracy of the output voltage. The switching clock can be forced to PWM mode and the phases are interleaved. The switching can be synchronized to an external clock and spread-spectrum mode can be enabled to minimize the disturbances.

特性 Features

• AEC-Q100 Qualified with the Following Results:
• Developed According to the Requirements of ISO26262 Supporting ASIL-D Systems (SEooC)
• Windowed Voltage and Over-Current Monitors
• Level or PWM Error Signal Monitoring (ESM) Supporting Processors with Safety-MCU
• NVM Bit-Integrity Error Detection
• Input Voltage: 2.8 V to 5.5 V
• Output Voltage: 0.3 V to 3.34 V (0.3 V to 1.9 V for Multi-Phase Outputs)
• Programmable Output Voltage Slew-Rate
• 10 configurable General Purpose I/O (GPIO)
• SPMI Interface for Multi-PMIC Synchronization
• Input Overvoltage Protection (OVP) and Undervoltage Lockout (UVLO)
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