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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 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-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.
RTQ2079-QF 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 Monitors, 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 - 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 </li><li>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 </li><li>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 </li><li>Small Form Factor - Wettable WET-WQFN-24AL 4x4 Package with Compact BOM </li><li>Junction Temperature Range: -40°C to 125°C </li><li>Ambient Temperature Range: -40°C to 125°C </li></ul></div>
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RTQ2079-QF Ordering Information
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<div class="spec-list"><ul class="lv1"><li>Function 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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