| DDR memory type | DDR, DDR2, DDR3 |
| Control mode | Voltage Mode |
| Iout VTT (Max) (A) | 9 |
| Iq (Typ) (mA) | 11 |
| Output | VTT |
| Vin (Min) (V) | 3 |
| Vin (Max) (V) | 4 |
| Features | Status Pin |
| Rating | Catalog |
- Tracks Externally Applied Reference Voltage
- 15-m
MOSFET Switches for High Efficiency at 9-A Continuous
Output Source or Sink Current - 6% to 90% VI Output Tracking Range
- Wide PWM Frequency: Fixed 350 kHz or Adjustable 280 kHz to 700 kHz
- Load Protected by Peak Current Limit and Thermal Shutdown
- Integrated Solution Reduces Board Area and Total Cost
- APPLICATIONS
- DDR Memory Termination Voltage
- Active Termination of GTL and SSTL High-Speed Logic Families
- DAC Controlled High Current Output Stage
- Precision Point of Load Power Supply
As a member of the SWIFT? family of dc/dc regulators, the TPS54972 low-input voltage high-output current synchronous-buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter L and C components; an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 3.0 V; an internally set slow-start circuit to limit in-rush currents; and a status output to indicate valid operating conditions.
The TPS54972 is available in a thermally enhanced 28-pin TSSOP (PWP) PowerPAD? package, which eliminates bulky heatsinks. TI provides evaluation modules and the SWIFT designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.
