APL5338

APL5338 2A Bus Termination Regulator Features Sourcing and Sinking Current up to 2A Wide Input Voltage Range: 1.2V to 3.6V VTT and VTTREF Voltage Tracks at Half the VREF Voltage VTT and VTTREF Voltage with ±10mV Accuracy Excellent Load Transient Response Stable with 10µF Ceramic Output Capacitor Current-Limit Protection Thermal Shutdown Protection Power-On-Reset Function on VCNTL S3, S5 Input Signals for ACPI States Small MSOP-10P and TDFN3x3-10 Packages Lead Free and Green Devices Available (RoHS Compliant) General Description The APL5338 linear regulator is designed to provide a regulated voltage with bi-directional output current for DDR-SDRAM termination. The APL5338 integrates two power transistors to source or sink current up to 2A. It also incorporates current-limit and thermal shutdown into a single chip. The output voltage of APL5338 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 10µF 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 and TDFN3x3-10 package with a copper pad is available which provides excellent thermal impedance. Applications DDR 2/3 Memory Termination Pin Configuration VRE...