The TPS65311-Q1 device is a power-management IC (PMIC), meeting the requirements of digital-signal-processor (DSP) controlled-automotive systems (for example, advanced driver-assistance systems). With the integration of commonly used supply rails and features, the TPS65311-Q1 device significantly reduces board space and system costs.

The device is capable of providing stable output voltages to the application, including a typical 5-V CAN-supply, from a varying input power supply (such as an automotive car battery) from 4 V to 40 V. The device includes one synchronous buck controller as a pre-regulator that offers flexible output power to the application. For post-regulation, the device includes two synchronous buck and one asynchronous boost converter, working at a switching frequency of 2.45 MHz to allow for a smaller inductor which requires less board space. The two buck converters also offer internal loop compensation which eliminates the need for external compensation components. Furthermore, the device includes a low-noise linear regulator.

To help support system safety, the device includes voltage monitoring on all supply rails and a window-watchdog to monitor the MCU and DSP. Other features include a high-side driver which drives a warning-lamp LED, a reference voltage which is used as ADC reference in the MCU, DSP, and a shutdown comparator which, in combination with external NTC-resistor, switches off the device at too-low ambient temperature.

• Qualified for Automotive Applications
• AEC-Q100 Test Guidance With the Following Results:
  • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • Device HBM ESD Classification Level H1B
  • Device CDM ESD Classification Level C4B
• Input Voltage Range: 4 V to 40 V, Transients up to 60 V; 80 V When Using External PMOS-FET
• Single-Output Synchronous-Buck Controller
  • Peak Gate-Drive Current 0.6 A
  • 490-kHz Fixed Switching Frequency
  • Pseudo Random Frequency-Hopping Spread Spectrum or Triangular Mode
• Dual-Synchronous Buck Converter
  • Designed for Output Currents up to 2 A
  • Out of Phase Switching
  • Switching Frequency: 2.45 MHz
• Adjustable 350-mA Linear Regulator
• Adjustable Asynchronous-Boost Converter
  • 1-A Integrated Switch
  • Switching Frequency: 2.45 MHz
• Soft-Start Feature for All Regulator Outputs
• Independent Voltage Monitoring
• Undervoltage (UV) Detection and Overvoltage (OV) Protection
• Short Circuit, Overcurrent, and Thermal Protection on all supply output rails
• Serial-Peripheral Interface (SPI) for Control and Diagnostic
• Integrated Window Watchdog (WD)
• Reference Voltage Output
• High-Side (HS) Driver for Use with External PMOS-FET for driving an LED
• Input for External Temperature Sensor for Shutdown at TA < –40°C
• Thermally Enhanced Packages With Exposed Thermal Pad
  • 56-Pin VQFN (RVJ) or 56-Pin VQFNP (RWE)

• Regulated outputs (#)
• 5
• Vin (Min) (V)
• 4
• Vin (Max) (V)
• 40
• Iout (Max) (A)
• 3
• Rating
• Automotive
• LDO
• 1
• Iq (Typ) (mA)
• 0.044
• Features
• Comm Control, Power Sequencing
• Processor name
• Generic
• Processor supplier
• Generic
• Shutdown current (ISD) (Typ) (uA)
• 44
• Switching frequency (Typ) (kHz)
• 2450
• Configurability
• Factory programmable

TPS65311-Q1的完整型号有：TPS65311QRVJRQ1，以下是这些产品的关键参数及官网采购报价：

TPS65311QRVJRQ1，工作温度：-40 to 125，封装：VQFN (RVJ)-56，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网TPS65311QRVJRQ1的批量USD价格：3.167（1000+）

TPS65310AEVM — TPS65310AEVM：用于汽车类安全应用评估模块的高压电源管理 IC

The TPS65310AEVM evaluation modules (EVM) helps engineers evaluate the operation and performance of the TPS65310A-Q1 power supply IC for safety applications. The EVM contains the TPS65310A-Q1 and circuitry for basic operation. It has an on board USB-to-SPI interface but can also run without it or (...)