FEATURES：

• Qualified for Automotive Applications

• AEC-Q100 Qualified with the Following Results:

- Device Temperature Grade 1

• Wide Input Voltage Range: 3.5V-36V

• One Synchronous HV Buck Converter VOUT1:

- Up to 3A Continuous Output Current

- Output Voltage of 3.3/3.7/4.6/5V

• Dual Synchronous LV Buck Converters VOUT2, VOUT3:

- Up to 2A Continuous Output Current

- Output Voltage Range 0.8V to 2.35V with 50mV Steps

• One Low-Drop Regulator(LDO) VOUT4:

- Up to 400mA Continuous Output Current

- Output Voltage: 1.8/2.7/2.8/2.9/3.3V

• +/- 1.5% Feedback Reference Voltage

• Fixed 2.2MHz Switching Frequency with Integrated Frequency Dither for EMI Mitigation

• FCCM/PFM Selectable

• Programmable Power Sequencer for VOUT2, VOUT3 and VOUT4

• RESETB Output for System Management

• External Clock Synchronization

• Simple/QA Watchdog

• Integrated Protection Features:

- Hiccup Over Current Protection

- Output Over-voltage/Under-voltage Protection

- Adjustable Input Voltage Under-voltage Lockout

- Thermal Shutdown Protection

• Functional Safety Features:

- Compliance with ISO26262 Development

- Hardware Integrity up to Support ASIL-B System

- ASIL-B Device Certification by TUV

- BIST

• Up to 1MHz I2C Interface with Optional Packet Error-Checking (PEC)

• Available in QFN-24 (4mm*4mm)


DESCRIPTION：


The SCT61441S device is a wide input power management IC with four channels output. The device is designed for automotive camera module.
The SCT61441S integrates one 3A HV Buck, two identical 2A LV Buck and a 400mA LDO. Each channel output is continuously monitored, any over-voltage/under-voltage fault will be detected and the device will enter RESET state. All output voltages are pre-programmed, which saves external feedback divider and minimizes system solution. The switching frequency of HV Buck is 2.2MHz/400kHz selectable. The switching frequency is fixed 2.2MHz for LV buck converters The device features Frequency Spread Spectrum (FSS) with programmable jittering span of the switching frequency and modulation frequency to reduce the conducted EMI.
The device also integrates simple watchdog mode and QA watchdog mode. The dedicated WDI pin allows trigger pulse generated by MCU. Programmable watchdog window is suitable for a wide variety of applications. The RESETB output can be the sequencer of MCU to protect it from device fault.
The SCT61441S device has protection features such as thermal shutdown, short-circuit protection and over-voltage protection. Disabling all outputs via I2C can reduce the quiescent current to 0.85 mA.
The device has Built-in Self-Test (BIST) Diagnosis over internal analog and digital circuits. All critical comparator and data will be checked during power up stage.
The device is available in a QFN-24(4mm*4mm) Package.



APPLICATIONS：