TPS51217 Series
3-V to 28-V, 20-A, synchronous D-CAP buck controller for notebook power
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Operating Temperature▲▼ | Operating Temperature▲▼ | Voltage - Supply (Vcc/Vdd)▲▼ | Voltage - Supply (Vcc/Vdd)▲▼ | Output Configuration | Clock Sync▲▼ | Mounting Type | Function | Output Phases▲▼ | Control Features | Number of Outputs▲▼ | Package / Case | Frequency - Switching▲▼ | Synchronous Rectifier▲▼ | Output Type | Topology | Supplier Device Package |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS51217DSCRBuck Regulator Positive Output Step-Down DC-DC Controller IC 10-WSON (3x3) | 85 °C | -40 °C | 4.5 V | 6.5 V | Positive | Surface Mount | Step-Down | 1 ul | Enable, Power Good | 1 ul | 10-WFDFN Exposed Pad | 340000 Hz | Transistor Driver | Buck | 10-WSON |
Key Features
• Wide Input Voltage Range: 3 V to 28 VOutput Voltage Range: 0.6 V to 2.6 VWide Output Load Range: 0 to 20A+Built-in 0.5% 0.6 V ReferenceD-CAP Mode with 100-ns Load Step ResponseAdaptive On Time Control Architecture with Fixed 340kHz OperationDynamic Output Voltage Change Capability4700 ppm/°C RDS(on)Current SensingInternal 0.9-ms Voltage Servo SoftstartPre-Charged Start-up CapabilityBuilt-in Output DischargePower Good OutputIntegrated Boost SwitchBuilt-in OVP/UVP/OCPThermal Shutdown (Non-latch)SON-10 (DSC) PackageWide Input Voltage Range: 3 V to 28 VOutput Voltage Range: 0.6 V to 2.6 VWide Output Load Range: 0 to 20A+Built-in 0.5% 0.6 V ReferenceD-CAP Mode with 100-ns Load Step ResponseAdaptive On Time Control Architecture with Fixed 340kHz OperationDynamic Output Voltage Change Capability4700 ppm/°C RDS(on)Current SensingInternal 0.9-ms Voltage Servo SoftstartPre-Charged Start-up CapabilityBuilt-in Output DischargePower Good OutputIntegrated Boost SwitchBuilt-in OVP/UVP/OCPThermal Shutdown (Non-latch)SON-10 (DSC) Package
Description
AI
The TPS51217 is a small-sized single buck controller with adaptive on-time D-CAP™ mode. The device is suitable for low output voltage, high current, PC system power rail and similar point-of-load (POL) power supply in digital consumer products. A small package with minimal pin-count saves space on the PCB, while a dedicated EN pin and pre-set frequency minimize design effort required for new designs. The skip-mode at light load condition, strong gate drivers and low-side FET RDS(on)current sensing supports low-loss and high efficiency, over a broad load range. The TRAN pin provides freedom of masking overvoltage protection, undervoltage protection and power-good signal during the transition period of dynamic output voltage change for modern GPU power supply applications. The conversion input voltage which is the high-side FET drain voltage ranges from 3 V to 28 V and the output voltage ranges from 0.6 V to 2.6 V. The device requires an external 5-V supply. The TPS51217 is available in a 10-pin SON package specified from –40°C to 85°C.
The TPS51217 is a small-sized single buck controller with adaptive on-time D-CAP™ mode. The device is suitable for low output voltage, high current, PC system power rail and similar point-of-load (POL) power supply in digital consumer products. A small package with minimal pin-count saves space on the PCB, while a dedicated EN pin and pre-set frequency minimize design effort required for new designs. The skip-mode at light load condition, strong gate drivers and low-side FET RDS(on)current sensing supports low-loss and high efficiency, over a broad load range. The TRAN pin provides freedom of masking overvoltage protection, undervoltage protection and power-good signal during the transition period of dynamic output voltage change for modern GPU power supply applications. The conversion input voltage which is the high-side FET drain voltage ranges from 3 V to 28 V and the output voltage ranges from 0.6 V to 2.6 V. The device requires an external 5-V supply. The TPS51217 is available in a 10-pin SON package specified from –40°C to 85°C.