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The RTQ2079-QA 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-QA offers overvoltage and undervoltage monitors, two error input receivers, one error output indicator, and fault status reported by I<SUP>2</SUP>C for system fault reporting purpose.The device offers system design flexibility with I<SUP>2</SUP>C 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-QA is available in a WET-WQFN-24AL 4x4 package with wettable flanks.The recommended junction temperature range is -40°C to 150°C, and the ambient temperature range is -40°C to 125°C.
RTQ2079-QA Typical Circuit
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<div class="spec-list"><ul class="lv1"><li>AEC-Q100 Grade 1 Qualified </li><li>Compliance with ISO 26262 ASIL B </li><li>Power-On Built-In Self-Test (BIST) for OV/UV Monitor, I<sup>2</sup>C Cyclic Redundancy Check (CRC), and OTP Register CRC Protection </li><li>Three Step-Down Converters (HVBuck1, LVBuck2, and LVBuck3) with Peak-Current Mode PWM Operation and PSM Mode for Sentry Mode via I<sup>2</sup>C Setting <ul class="lv2"> <li></li><li>Fixed Switching Frequency at 2.1MHz </li><li>EMI Reduction Features including Spread Spectrum and Phase-Shift Operation </li><li>HVBuck1 Supports Input Voltage from 4V to 24V with 36V Load Dump Protection, Adjustable Output Voltage, and up to 1.5A Output Current </li><li>LVBuck2 and LVBuck3 Support Input Voltage from 2.7V to 5V, Adjustable Output Voltage, and up to 1.5A Output Current </li><li>Float LVBuck2/LVBuck3 Related Pins for Unused Channels </li></ul> </li><li>Two Low-Dropout Regulators (LDO1 and LDO2) <ul class="lv2"> <li></li><li>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) </li><li>LDO2 with 2.7V to 5V Input Voltage, Adjustable Output Voltage, and up to 0.4A Output Current </li></ul> </li><li>Input and Output Functions <ul class="lv2"> <li></li><li>Sequence Control for External IC via SEQOUT </li><li>Power Status Indication via PGOOD </li><li>Error Status Indication via ERROUT </li><li>Two Error Signal Receivers via ERRIN1/ERRIN2 </li><li>External Voltage Monitor via VMONIN </li></ul> </li><li>Small Form Factor <ul class="lv2"> <li></li><li>Wettable WET-WQFN-24AL 4x4 Package with Compact BOM </li></ul> </li><li>Junction Temperature Range: -40°C to 150°C </li><li>Ambient Temperature Range: -40°C to 125°C </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>Functional Safety Related Automotive Camera Modules } Surround View Cameras } Front View Cameras } Rear View Cameras } Dash Cams } Driver Monitoring Systems } Cabin Monitors } eMirrors </li></ul></div>
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