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Richtek
關於立錡 | 聯絡我們 |

The RTQ2079-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 or Power Over Coaxial (PoC) connection. The RTQ2079-QF offers overvoltage and undervoltage monitors, two error input receivers, one error output indicator, and fault status reported by I2C for system fault reporting purpose.The device offers system design flexibility with I2C or factory-trimmed configurable functions, including adjustable output voltage for each channel, customizable power-on sequencing, and overvoltage (OV) or undervoltage (UV) monitor threshold voltage. The RTQ2079-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

  • Function Safety Related Automotive Camera Modules
    - Surround View Cameras
    - Front View Cameras
    - Rear View Cameras
    - Dash Cams
    - Driver Monitoring Systems
    - Cabin Monitors
    - eMirrors
主要規格
RTQ2079-QF
Status Active
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;Cycle-by-Cycle Current Limit;Fast Transient Response;High PSRR;I2C;Low Dropout;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
  • Power-On Built-In Self-Test (BIST) for OV/UV Monitors, I2C Cyclic Redundancy Check (CRC), and OTP Register CRC Protection
  • Three Step-Down Converters (HVBuck1, LVBuck2, and LVBuck3) with Peak-Current Mode PWM Operation and PSM Mode for Sentry Mode via I2C Setting
    - 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 Load Dump Protection (36V for ≤ 400ms Transient), 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
    - Sequence Control for External IC via SEQOUT
    - Power Status Indication via PGOOD
    - Error Status Indication via ERROUT
    - Two Error Signal Receivers via ERRIN1/ERRIN2
    - External Voltage Monitor via VMONIN
  • 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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