DescriptionThe TPS51206 device is a sink and source double date rate (DDR) termination regulator with VTTREF buffered reference output. It is specifically designed for low-input voltage, low-cost, low-external component count systems where space is a key consideration. The device maintains fast transient response and only requires 1 × 10-µF of ceramic output capacitance. The device supports a remote sensing function and all power requirements for DDR2, DDR3 and Low-Power DDR3 (DDR3L), and DDR4 VTT bus. The VTT current capability is ±2-A peak. The device supports all of the DDR power states, putting VTT to High-Z in S3 state (suspend to RAM) and discharging VTT and VTTREF in S4 or S5 state (suspend to disk).
The TPS51206 device is available in 10-Pin, 2 mm × 2 mm SON (DSQ) PowerPAD™ package and specified from –40°C to 105°C.
Features• Supply Input Voltage: Supports 3.3-V Rail and 5-V Rail
• VLDOIN Input Voltage Range: VTT+0.4 V to 3.5 V
• VTT Termination Regulator
– Output Voltage Range: 0.5 V to 0.9 V
– 2-A Peak Sink and Source Current
– Requires Only 10-μF MLCC Output Capacitor
– ±20 mV Accuracy
• VTTREF Buffered Reference
– VDDQ/2 ± 1% Accuracy
– 10-mA Sink and Source Current
• Supports High-Z in S3 and Soft-Stop in S4 and S5 with S3 and S5 Inputs
• Overtemperature Protection
• 10-Pin, 2 mm × 2 mm SON (DSQ) Package
Applications• DDR2, DDR3, DDR3L, and DDR4 Memory Power Supplies
• SSTL_18, SSTL_15, SSTL_135 and HSTL Termination
• Telecom and Datacom, GSM Base Station, LCDTV and PDP-TV, Copier and Printer, Set-top Box
Feature
Independent Dual-Outputs Operate 180° Out of Phase
Wide Input Voltage Range: 4.5-V – 28-V
Adjustable Output Voltage Down to 0.9 V
Pin-Selectable PWM/SKIP Mode for High Efficiency Under Light Loads
Synchronous Buck Operation Allows up to 95% Efficiency
Separate Standby Control and Overcurrent Protection for Each Channel
Programmable Short-Circuit Protection
Low Supply (1 mA) and Shutdown (1 nA) Current
Power Good Output
High-Speed Error Amplifiers
Sequencing Easily Achieved by Selecting Softstart Capacitor Values.
5-V Linear Regulator Power Internal IC Circuitry
30-Pin TSSOP Packaging