TPS542941 Series
4.5 V to 18 V input, 2 A / 3 A dual channel synchronous step-down converter, 1 ms fixed soft start
Manufacturer: Texas Instruments
Catalog(3 parts)
| Part | Voltage - Input (Min)▲▼ | Current - Output▲▼ | Voltage - Output (Max)▲▼ | Number of Outputs▲▼ | Voltage - Output (Min/Fixed)▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Function | Frequency - Switching▲▼ | Voltage - Input (Max)▲▼ | Synchronous Rectifier▲▼ | Output Configuration | Mounting Type | Topology | Output Type | Supplier Device Package | Package / Case | Board Type | Utilized IC / Part | Voltage - Output▲▼ | Main Purpose | Supplied Contents | Outputs and Type▲▼ | Outputs and Type | Voltage - Input▲▼ | Voltage - Input▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS542941RSATBuck Switching Regulator IC Positive Adjustable 0.76V 2 Output 2A, 3A 16-VQFN Exposed Pad | 4.5 V | 2 A, 3 A | 7 V | 2 ul | 0.7599999904632568 V | 85 °C | -40 °C | Step-Down | 700000 Hz | 18 V | Positive | Surface Mount | Buck | Adjustable | 16-QFN (4x4) | 16-VQFN Exposed Pad | ||||||||||
Texas Instruments TPS542941RSARBuck Switching Regulator IC Positive Adjustable 0.76V 2 Output 2A, 3A 16-VQFN Exposed Pad | 4.5 V | 2 A, 3 A | 7 V | 2 ul | 0.7599999904632568 V | 85 °C | -40 °C | Step-Down | 700000 Hz | 18 V | Positive | Surface Mount | Buck | Adjustable | 16-QFN (4x4) | 16-VQFN Exposed Pad | ||||||||||
Texas Instruments TPS542941EVM-057TPS542941 D-CAP2™, Eco-Mode™ DC/DC, Step Down 2, Non-Isolated Outputs Evaluation Board | 2 A, 3 A | 700000 Hz | Fully Populated | TPS542941 | 1.5 V, 3.299999952316284 V | DC/DC, Step Down | Board(s) | 2 ul | Non-Isolated | 18 V | 5 V |
Key Features
• D-CAP2 Control ModeFast Transient ResponseNo External Parts Required For LoopCompensationCompatible with Ceramic OutputCapacitorsWide Input Voltage Range :4.5 V to 18 VOutput Voltage Range :0.76V to 7VHighly Efficient Integrated FETsOptimized for Low Duty CycleApplications150 mΩ (High Side) and100 mΩ (Low Side)High Initial Reference Accuracy2A CH1 / 3A CH2 Continuous Load CurrentLow-Side rDS(on)Loss-Less Current SensingFixed Soft Start : 1.0msNon-Sinking Pre-Biased Soft StartPowergood700 kHz Switching FrequencyCycle-by-Cycle Over-Current LimitControlOCL/UVLO/TSD ProtectionsHiccup Timer for OverloadProtectionAdaptive Gate Drivers with IntegratedBoost PMOS SwitchOCP Constant Due To Thermally CompensatedrDS(on)with 4000ppm/°C16-Pin HTSSOP, 16-Pin VQFNAuto-Skip Eco-mode™ for HighEfficiency at Light LoadD-CAP2 Control ModeFast Transient ResponseNo External Parts Required For LoopCompensationCompatible with Ceramic OutputCapacitorsWide Input Voltage Range :4.5 V to 18 VOutput Voltage Range :0.76V to 7VHighly Efficient Integrated FETsOptimized for Low Duty CycleApplications150 mΩ (High Side) and100 mΩ (Low Side)High Initial Reference Accuracy2A CH1 / 3A CH2 Continuous Load CurrentLow-Side rDS(on)Loss-Less Current SensingFixed Soft Start : 1.0msNon-Sinking Pre-Biased Soft StartPowergood700 kHz Switching FrequencyCycle-by-Cycle Over-Current LimitControlOCL/UVLO/TSD ProtectionsHiccup Timer for OverloadProtectionAdaptive Gate Drivers with IntegratedBoost PMOS SwitchOCP Constant Due To Thermally CompensatedrDS(on)with 4000ppm/°C16-Pin HTSSOP, 16-Pin VQFNAuto-Skip Eco-mode™ for HighEfficiency at Light Load
Description
AI
The TPS542941 is a dual, adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS542941 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, and low standby current solution. The main control loops of the TPS542941 use the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS542941 to maintain high efficiency during lighter load conditions. The TPS542941 is able 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 provides convenient and efficient operation with input voltages from 4.5V to 18V.
The TPS542941 is available in a 4.4mm × 5.0mm 16 pin TSSOP (PWP) package, and 4mm × 4mm 16-pin VQFN (RSA) package specified for an ambient temperature range from –40°C to 85°C.
The TPS542941 is a dual, adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS542941 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, and low standby current solution. The main control loops of the TPS542941 use the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS542941 to maintain high efficiency during lighter load conditions. The TPS542941 is able 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 provides convenient and efficient operation with input voltages from 4.5V to 18V.
The TPS542941 is available in a 4.4mm × 5.0mm 16 pin TSSOP (PWP) package, and 4mm × 4mm 16-pin VQFN (RSA) package specified for an ambient temperature range from –40°C to 85°C.