PTH03010Y

• VTT Bus Termination Output •
Output Overcurrent Protection
(Output Tracks the System VREF)
(Nonlatching, Auto-Reset)
• 15 A Output Current (12 A for 12-V Input)
• 62 W/in3 Power Density
• 3.3-V, 5-V or 12-V Input Voltage
• Safety Agency Approvals
• DDR and QDR Compatible
UL/cUL60950, EN60950, VDE
• On/Off Inhibit (for VTT Standby)
• Point-of-Load Alliance (POLA™) Compatible

The PTH03010Y are a series of ready-to-use switching regulator modules from Texas Instruments designed specifically for bus termination in DDR and QDR memory applications. Operating from either a 3.3-V, 5-V or 12-V input, the modules generate a VTT output that will source or sink up to 15 A of current (12 A for 12-V input) to accurately track their VREF input. VTT PTH03010Y is the required bus termination supply voltage, and VREF is the reference voltage for the memory and chipset bus receiver comparators. VREF is usually set to half the VDDQ power supply voltage.

Both the PTH03010Y series employs an actively switched synchronous rectifier output to provide state-of-the-art stepdown switching conversion. The products PTH03010Y are small in size (1.37 in × 0.62 in), and are an ideal choice where space, performance, and high efficiency are desired, along with the convenience of a ready-to-use module.

Operating PTH03010Y  features include an on/off inhibit and output over-current protection (source mode only). The on/off inhibit feature allows the VTT bus to be turned off to save power in a standby mode of operation. To ensure tight load regulation, an output remote sense is also provided. Package options include both throughhole and surface mount configurations.