TPS54426 Series
4.5V to 18V Input, 4A Synchronous Step-Down Converter with Eco-Mode™
Manufacturer: Texas Instruments
Catalog(3 parts)
| Part | Function | Output Type | Topology | Frequency - Switching▲▼ | Voltage - Input (Min)▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Number of Outputs▲▼ | Voltage - Output (Min/Fixed)▲▼ | Voltage - Output (Max)▲▼ | Package / Case | Mounting Type | Voltage - Input (Max)▲▼ | Current - Output▲▼ | Supplier Device Package | Output Configuration | Synchronous Rectifier▲▼ | Package / Case▲▼ | Package / Case▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS54426RSATBuck Switching Regulator IC Positive Adjustable 0.76V 1 Output 4A 16-VQFN Exposed Pad | Step-Down | Adjustable | Buck | 700000 Hz | 4.5 V | 85 °C | -40 °C | 1 ul | 0.7599999904632568 V | 5.5 V | 16-VQFN Exposed Pad | Surface Mount | 18 V | 4 A | 16-QFN (4x4) | Positive | |||
Texas Instruments TPS54426RSARBuck Switching Regulator IC Positive Adjustable 0.76V 1 Output 4A 16-VQFN Exposed Pad | Step-Down | Adjustable | Buck | 700000 Hz | 4.5 V | 85 °C | -40 °C | 1 ul | 0.7599999904632568 V | 5.5 V | 16-VQFN Exposed Pad | Surface Mount | 18 V | 4 A | 16-QFN (4x4) | Positive | |||
Texas Instruments TPS54426PWPBuck Switching Regulator IC Positive Adjustable 0.76V 1 Output 4A 14-PowerTSSOP (0.173", 4.40mm Width) | Step-Down | Adjustable | Buck | 700000 Hz | 4.5 V | 85 °C | -40 °C | 1 ul | 0.7599999904632568 V | 5.5 V | 14-PowerTSSOP | Surface Mount | 18 V | 4 A | 14-HTSSOP | Positive | 0.004399999976158142 m | 0.004394200164824724 m |
Key Features
• D-CAP2™ Mode Enables Fast Transient ResponseLow Output Ripple and Allows Ceramic Output CapacitorWide VINInput Voltage Range: 4.5 V to 18 VOutput Voltage Range: 0.76 V to 5.5 VHighly Efficient Integrated FET’s Optimizedfor Lower Duty Cycle Applications– 65 mΩ (High Side) and 55 mΩ (Low Side)High Efficiency, less than 10 µA at shutdownHigh Initial Bandgap Reference AccuracyAdjustable Soft StartPre-Biased Soft Start700-kHz Switching Frequency (fSW)Cycle By Cycle Over Current LimitPower Good OutputAuto-Skip Eco-mode for High Efficiency at Light LoadAPPLICATIONSWide Range of Applications for Low Voltage SystemDigital TV Power SupplyHigh Definition Blu-ray Disc PlayersNetworking Home TerminalDigital Set Top Box (STB)D-CAP2™ Mode Enables Fast Transient ResponseLow Output Ripple and Allows Ceramic Output CapacitorWide VINInput Voltage Range: 4.5 V to 18 VOutput Voltage Range: 0.76 V to 5.5 VHighly Efficient Integrated FET’s Optimizedfor Lower Duty Cycle Applications– 65 mΩ (High Side) and 55 mΩ (Low Side)High Efficiency, less than 10 µA at shutdownHigh Initial Bandgap Reference AccuracyAdjustable Soft StartPre-Biased Soft Start700-kHz Switching Frequency (fSW)Cycle By Cycle Over Current LimitPower Good OutputAuto-Skip Eco-mode for High Efficiency at Light LoadAPPLICATIONSWide Range of Applications for Low Voltage SystemDigital TV Power SupplyHigh Definition Blu-ray Disc PlayersNetworking Home TerminalDigital Set Top Box (STB)
Description
AI
The TPS54426 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54426 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54426 uses 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 TPS54426 to maintain high efficiency during lighter load conditions. The TPS54426 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP, SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable soft start time and a power good function. The TPS54426 is available in the 14-pin HTSSOP package and the 16 pin QFN package, designed to operate from –40°C to 85°C.
The TPS54426 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54426 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54426 uses 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 TPS54426 to maintain high efficiency during lighter load conditions. The TPS54426 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP, SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable soft start time and a power good function. The TPS54426 is available in the 14-pin HTSSOP package and the 16 pin QFN package, designed to operate from –40°C to 85°C.