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Richtek
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The RTQ2081-QF is a highly integrated PMIC designed for automotive camera applications. It includes three step-down converters, one high PSRR low-dropout (LDO) regulator, and one general low-dropout (LDO) regulator. The high-voltage step-down converter operates with an input voltage range of up to 24V and is capable of sustaining a 36V load dump.It is suitable for a direct connection to a 12V battery. The RTQ2081-QF offers overvoltage and undervoltage monitors, two error input receivers, one error output indicator, and fault status reported by I2C for functional safety purposes.The RTQ2081-QF is equipped with a standard built-in watchdog timer function.This feature offers versatility for a wide range of applications through configurable setting for both upper and lower window tolerances.The device offers system design flexibility with I2C or factory-trimmed configurable functions, including adjustable output voltage for each channel, customizable power-on sequencing, overvoltage (OV) or undervoltage (UV) monitor threshold voltage, and the watchdog timeout setting.The RTQ2081-QF is available in a WET-WQFN-24AL 4x4 package with wettable flanks. The recommended junction temperature range is -40°C to 125°C, and the ambient temperature range is -40°C to 125°C.

應用

  • Functional Safety Related Automotive Modules
    - ADAS MCU
    - Radar Modules
      - Front Radars
      - Rear Radars
      - Side Radars
      - Corner Radars
      - In-Cabin Radars
主要規格
RTQ2081-QF
Status Preview
Vin (min) (V) 4
Vin (max) (V) 24
Number of Channels 5
Number of Buck Converters 3
Number of Boost Converters 0
Number of Negative Outputs 0
Number of LED Drivers 0
Number of LDO Regulators 2
Application Automotive
Features AEC-Q100;Current Mode Control;High PSRR;I2C;OCP;OVP;Power Good;UVP
Package Type WET-WQFN4x4-24A
關鍵特性
  • AEC-Q100 Grade 1 Qualified
  • Compliance with ISO 26262 ASIL B
  • Safety Mechanisms Include Power-On Built-In Self-Test (BIST) for OV/UV Monitors, I2C Cyclic Redundancy Check (CRC), and OTP Register CRC
  • Three Step-Down Converters (HVBuck1, LVBuck2 & 3) with Peak-Current Control, Forced PWM (FPWM), and Power-Saving (PSM) Operation to Enhance Efficiency under Light Load Conditions
    - Fixed Switching Frequency at 2.1MHz
    - EMI Reduction Features including Spread Spectrum and Phase-Shift Operation
    - HVBuck1 Supports Input Voltage from 4V to 24V with 36V Load Dump Protection, Adjustable Output Voltage, and up to 1.5A Output Current
    - LVBuck2 and LVBuck3 Support Input Voltage from 2.7V to 5V, Adjustable Output Voltage, and up to 1.5A Output Current
    - Pins Related to LVBuck2/LVBuck3 Can Float if the Channel is Unused
  • Two Low Dropout Regulators (LDO1 and LDO2)
    - LDO1 with 2.7V to 5V Input Voltage, Adjustable Output Voltage, up to 0.3A Output Current, and High PSRR with 0.1A Output Current (60dB at 100kHz, 40dB at 1MHz)
    - LDO2 with 2.7V to 5V Input Voltage, Adjustable Output Voltage, and up to 0.4A Output Current
  • Input and Output Functions
    - Monitoring WDT Input Signal from External MCU via WDI
    - WDT Error Status Indication via WDTERR
    - RESET Input Signal Control via RESETIN
    - Power Status Indication via PGOOD
    - Error Status Indication via ERROUT
  • Small Form Factor
    - Wettable WET-WQFN-24AL 4x4 Package with Compact BOM
  • Junction Temperature Range: -40°C to 125°C
  • Ambient Temperature Range: -40°C to 125°C
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