Catalog(1 parts)
| Part | Supplier Device Package | Operating Temperature▲▼ | Operating Temperature▲▼ | Output Configuration | Mounting Type | Frequency - Switching▲▼ | Package / Case | Number of Outputs▲▼ | Synchronous Rectifier▲▼ | Voltage - Input (Max)▲▼ | Voltage - Output (Max)▲▼ | Voltage - Output (Min/Fixed)▲▼ | Function | Topology | Output Type | Voltage - Input (Min)▲▼ | Current - Output▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS53511RGTTBuck Switching Regulator IC Positive Adjustable 0.76V 1 Output 1.5A 16-VFQFN Exposed Pad | 16-VQFN (3x3) | 85 °C | -40 °C | Positive | Surface Mount | 700000 Hz | 16-VFQFN Exposed Pad | 1 ul | 18 V | 5 V | 0.7599999904632568 V | Step-Down | Buck | Adjustable | 2 V | 1.5 A |
Key Features
• Continuous 1.5-A output current4.5-V to 18-V supply voltage range2-V to 18-V conversion voltage rangeDCAP2™ mode control enables fast transient responseLow output ripple and support all MLCC output capacitorSkip mode for light load controlHighly efficient integrated FETs optimized for lower duty cycle applicationsHigh efficiency, less than 10-µA supply current at shutdownAdjustable soft-start timeSupport pre-biased soft start700-kHz switching frequencyCycle-by-cycle overcurrent limitOpen-drain power-good indicationInternal bootstrap switchSmall 3-mm × 3-mm, 16-pin QFN (RGT) packageContinuous 1.5-A output current4.5-V to 18-V supply voltage range2-V to 18-V conversion voltage rangeDCAP2™ mode control enables fast transient responseLow output ripple and support all MLCC output capacitorSkip mode for light load controlHighly efficient integrated FETs optimized for lower duty cycle applicationsHigh efficiency, less than 10-µA supply current at shutdownAdjustable soft-start timeSupport pre-biased soft start700-kHz switching frequencyCycle-by-cycle overcurrent limitOpen-drain power-good indicationInternal bootstrap switchSmall 3-mm × 3-mm, 16-pin QFN (RGT) package
Description
AI
The TPS53511 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The device is suitable for points-of-load (POL) in computing power systems, and provides a cost-effective, low component count, low standby current solution. The main control loop for the TPS53511 uses the D-CAP2™ mode control to provide a fast transient response with no external components. The adaptive on-time control supports seamless operation between PWM mode during heavy load conditions and reduced frequency operation during light-load conditions for high efficiency.
The TPS53511 includes a proprietary circuit that enables the device to adapt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V supply input, and from 2-V to 18-V input power supply voltage. The device features an adjustable slow-start time and a power-good function. It also supports pre-biased soft start. The TPS53511 is available in a 16-pin QFN package, and is designed to operate from –40°C to 85°C.
The TPS53511 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The device is suitable for points-of-load (POL) in computing power systems, and provides a cost-effective, low component count, low standby current solution. The main control loop for the TPS53511 uses the D-CAP2™ mode control to provide a fast transient response with no external components. The adaptive on-time control supports seamless operation between PWM mode during heavy load conditions and reduced frequency operation during light-load conditions for high efficiency.
The TPS53511 includes a proprietary circuit that enables the device to adapt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V supply input, and from 2-V to 18-V input power supply voltage. The device features an adjustable slow-start time and a power-good function. It also supports pre-biased soft start. The TPS53511 is available in a 16-pin QFN package, and is designed to operate from –40°C to 85°C.