APL5333

APL5333 3A Bus Termination Regulator Features Sourcing and Sinking Current up to 3A Wide Input Voltage Range: 1.2V to 3.6V VTT and VTTREF Voltage Tracks at Half the VREF Voltage VTT and VTTREF Voltage with ±20mV Accuracy Excellent Load Transient Response - Droop Compensation - Fast Loop Response General Description The APL5333 linear regulator is designed to provide a regulated voltage with bi-directional output current for DDR-SDRAM termination. The APL5333 integrates two power transistors to source or sink current up to 3A. It also incorporate current-limit, thermal shutdown into a single chip. The output voltage of APL5333 tracks the voltage at VREF pin. An internal resistor divider is used to provide a half voltage of VREF for VTTREF and VTT Voltage. The VTT output voltage is only requiring 20µF of ceramic output capacitance for stability and fast transient response. The S3 and S5 pins provide the sleep state for VTT (S3 state) and suspend state (S4/S5 state) for device, when S5 and S3 are both pulled low the device provides the soft-off for VTT and VTTREF. The MSOP-10P package with a copper pad is available which provides excellent thermal impedance. Stable with 20µF Ceramic Output Capacitors Current Limit Protection Thermal Shutdown Protection Power-On-Reset Function on VCNTL S3, S5 Input Signals for ACPI States Available in a Thermal Enhanced MSOP-10P Package Lead Free Available (RoHS Compliant) Simplified Application Circuit Applications ...