SIC431AED-T1-GE3

The SiC431 is a synchronous buck regulator with integrated high side and low side power MOSFETs. Its power stage is capable of supplying 24 A continuous current at up to 1 MHz switching frequency. This regulator produces an adjustable output voltage down to 0.6 V from 3 V to 24 V input rail to accommodate a variety of applications, including computing, consumer electronics, telecom, and industrial. SiC431’s architecture supports ultrafast transient response with minimum output capacitance and tight ripple regulation at very light load. The device is internally compensated and no external ESR network is required for loop stability purposes. The device also incorporates a power saving scheme that significantly increases light load efficiency. The regulator integrates a full protection feature set, including output over voltage protection (OVP), cycle by cycle over current protection (OCP) short circuit protection (SCP) and thermal shutdown (OTP). It also has UVLO and a user programmable soft start. The SiC431 is available in lead (Pb) -free power enhanced MLP44-24L package in 4 mm×4 mm dimension.

Applications

• 5 V, 12 V, and 24 V input rail POLs
• Desktop, notebooks, server, and industrial computing
• Industrial and automation
• consumer electronics

Key features

• Versatile
• Operation from 3 V to 24 V input voltage RoHS
• Adjustable output voltage down to 0.6 V COMPLIANT
• Scalable solution 8 A (SiC438), 12 A (SiC437), and 24 A (SiC431) HALOGEN FREE
• Output voltage tracking and sequencing with pre-bias start up
• ± 1 % output voltage accuracy from -40 °C to +125 °C
• Highly efficient
• 97 % peak efficiency
• 1 μA supply current at shutdown
• 50 μA operating current, not switching
• Highly configurable
• Four programmable switching frequencies available: 300 kHz, 500 kHz, 750 kHz, and 1 MHz
• Adjustable soft start and adjustable current limit
• Three modes of operation: forced continuous conduction, power save (SiC431B, SiC431D), or ultrasonic (SiC431A, SiC431C)
• Robust and reliable
• Cycle-by-cycle current limit
• Output overvoltage protection
• Output undervoltage / short circuit protection with auto retry
• Power good flag and over temperature protection