FEATURES：

•    Qualified for Automotive Applications
•    AEC-Q100 Qualified with Following Results:
-    Device Temperature Grade 1: -40°C to 125°C Ambient Operating Temperature Range
•    Wide Input Voltage Range: 3.5-19V
•    Three High-Efficiency Step-Down Converters:
-    HV Buck1: Vout1=2.7-5V with 100mV Steps, Up to 2A Continuous Output Current
-    LV Buck2/3: Vout2/3=0.6-2.15V with 50mV Steps, Up to 2A Continuous Output Current
•    One Low-Dropout Regulator (LDO):
-    LDO4: Vout4=1.6-3.5V with 50mV Steps, Up to 300mA Continuous Output Current
-    High PSRR: 60dB@10kHz, 60dB@100kHz, 40dB@1MHz
-    Low noise: 30μV rms total integrated noise from 100Hz to 100kHz
•    ±1.5% Output Voltage Accuracy
•    2.2MHz Fixed Switching Frequency
•    Integrated Frequency Dither for EMI Mitigation
•    Selectable Light-load Operation: FCCM/PSM
•    Programmable Power Sequencer
•    Selectable RESETB Output: Open-drain/Push-pull
•    Two GPIOs for Flexible System Management
•    Integrated Protection Features:
-    Output Over-voltage/Under-voltage Protection
-    Over Current Protection
-    Input Under-voltage Lockout
-    Input Over-voltage Protection
-    Thermal Shutdown Protection: 175°C
•    Functional Safety Features:
-    Compliance with ISO26262 Development
-    Hardware Integrity to Support ASIL-C System
-    ASIL-C Device Certification
-    QA & Simple Watchdog
-    Built-in Self Test (BIST)
•    Up to 1MHz I2C Interface with Optional Packet Error Checking (PEC)
•    Available in QFN-20L(2.5mm×3.5mm) Package with Wettable Flanks


DESCRIPTION：

The SCT61242S is a highly integrated power management IC (PMIC) optimized for automotive camera system. It integrates three high-efficiency synchronous buck converters (HV Buck1, LV Buck2 and LV Buck3) and one high-PSRR, low noise LDO (LDO4) with OV/UV monitoring and flexible power sequence for all outputs.
Buck1 has an input voltage range from 3.5 to 19V for connections to Power over Coax (PoC). Buck2 and Buck3 are identical and powered from the output of Buck1. All three buck converters can operate in either FCCM or PSM mode at light load, with 2.2MHz switching frequency and optional Frequency Spread Spectrum (FSS) function for EMI mitigation. LDO4 is a high PSRR, low noise LDO designed for analog power rail with a continuous output current of up to 300mA. All output voltages are pre-programmed, which saves external feedback divider and minimizes system solution.
The SCT61242S is featured with two configurable GPIO pins for flexible system management. For instance, GPIO1 could be configured as external voltage monitor input while GPIO2 configured as external regulator enable output to monitor and control an external power rail.
The SCT61242S integrated protection features including input under-voltage protection, input over-voltage protection, output over-voltage/under-voltage protection, over-current protection and thermal shutdown at 175°C.
The SCT61242S provides Built-in Self Test (BIST) diagnosis over internal analog and digital circuits. All critical comparator and data will be checked at power-up stage. Watchdog is also supported to further improve system safety. The watchdog could be fed by periodic trigger pulse or specific I2C write operation with programmable timing window.
The SCT61242S is available in a 2.5mm×3.5mm QFN-20L package with wettable flanks.


APPLICATIONS：