loading
About Richtek | Contact Us |

The RTQ2078-QF is a highly integrated PMIC designed for automotive camera applications. It includes three step-down converters, and one high PSRR 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 Coax (PoC) connection.
The RTQ2078-QF offers overvoltage and undervoltage monitors, 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 RTQ2078-QF is available in a WET-UQFN-16L 3x3 (FC) 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.

Applications

  • Functional Safety Related Automotive Camera Modules
  • Surround View Camera
  • Front View Camera
  • Rear View Camera
  • Dash Cam DVR
  • Driver Monitoring System
  • Cabin Monitor
Key Spec.
RTQ2078-QF
Status Active
Vin (min) (V) 4
Vin (max) (V) 24
Number of Channels 4
Number of Buck Converters 3
Number of Boost Converters 0
Number of Negative Outputs 0
Number of LED Drivers 0
Number of LDO Regulators 1
Application Automotive
Features AEC-Q100;Adjustable Soft-Start;Cycle-by-Cycle Current Limit;Fast Transient Response;High PSRR;I2C;Low Dropout;OCP;OVP;Power Good;UVP
Package Type WET-UQFN3x3-16(FC)
Features
  • 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 1.5A Output Current
    ► Pins Related to LVBuck2/LVBuck3 Can Floating if the Channel is Unused
  • Low Dropout Regulator (LDO)
    ► LDO 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)
  • Input and Output Functions
    ► Power and Error Status Indication via PGOOD
  • Cycle-by-Cycle Over Current Protection
  • Small Form Factor Wettable WET-UQFN-16L 3x3 (FC) Package with Compact BOM
  • Ambient Temperature Range: -40°C to 125°C
  • Junction Temperature Range: -40°C to 125°C
Datasheet
TitleLast UpdateDownload
Functional Safety PMIC for Automotive Camera Sensor/Module2024/06/07
Please confirm with our distributor or sales representative for actual stock status.
TOP