• Qualified for Automotive Applications

• AEC-Q100 Qualified with the Following Results:

- Device Temperature Grade 1: -40°C to 125°C

Ambient Operating Temperature Range

• Wide Input Voltage Range: 4.4V-65V

• Continuous Output Current: 2A

• 1V±1% Feedback Reference Voltage at 25°C

• Integrated MOSFETs 320mΩ / 160mΩ Rdson

• Low shutdown current: 0.6uA

• Low Quiescent Current: 36uA

• Pulse Skipping Mode (PSM) in Light-Load

• Frequency 400kHz

• External Clock Synchronization

• 3.5ms Internal Soft-start Time

• Power Good Indicator

• Random Spread Spectrum option for reduced EMI

• Low Dropout Function and Minimum On Time Function

• Precision Enable Threshold for adjustable Input Voltage Under-Voltage Lock Out Protection (UVLO) Threshold and Hysteresis

• Support start-up with pre-biased output

• Over-voltage and Over-Temperature Protection

• ESOP-8L Package

The SCT2621Q is 2A synchronous buck converters with wide input voltage, ranging from 4.4V to 65V, which integrates a 320mΩ high-side MOSFET and a 160mΩ low-side MOSFET. The SCT2621Q, adopting the peak current mode control, supports the Pulse Skipping Modulation (PSM) with typical 36uA low quiescent current which assists the converter on achieving high efficiency at light load or standby condition. The SCT2621Q features an internal 3.5ms soft-start time to avoid large inrush current and output voltage overshoot during startup. The switching frequency is 400kHz. The SCT2621Q integrates LDO function and minimum on time function, so it can support normal operation within a wide range of duty cycles. The SCT2621Q is an Electromagnetic Interference (EMI) friendly buck converter with implementing optimized design for EMI reduction. The SCT2621Q features Frequency Spread Spectrum FSS use a pseudorandom frequency hopping with ±8% jittering span of the switching frequency to reduce the conducted EMI. The SCT2621Q offers cycle-by-cycle current limit and hiccup over current protection, thermal shutdown protection, output over-voltage protection and input voltage under-voltage protection. The device is available in ESOP-8L package.


APPLICATIONS: