SY21240D Datasheet | Silergy

High Efficiency Fast Response, 9A, 28V Input Synchronous Step Down Regulator with VDDQ LDO General Description The SY21240D provides a plete power supply with the highest density for DDR3, DDR3L, LPDDR3 and DDR4 memory. It develops one high efficiency synchronous step-down DC/DC regulator VDD2 capable of delivering 9A continuous/12A peak current and one sink/source VDDQ LDO capable of delivering ±1A current. In addition, it operates at 600kHz pseudo constant frequency under continuous conduction mode. The integrated low RDS(ON) switches minimize the conduction loss. Silergy’s proprietary Instant-PWM™ fast-response, constant-on-time (COT) PWM control method supports high...