TPS56528 Series

4.5V to 18V Input, 5-A Synchronous Step-Down Converter with Advanced Eco-mode™

Catalog

4.5V to 18V Input, 5-A Synchronous Step-Down Converter with Advanced Eco-mode™

Part	Voltage - Output	Board Type	Supplied Contents	Voltage - Input [Max]	Voltage - Input [Min]	Current - Output	Utilized IC / Part	Regulator Topology	Outputs and Type	Outputs and Type	Frequency - Switching	Main Purpose	Number of Outputs	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output (Min/Fixed)	Output Type	Package / Case [y]	Package / Case [x]	Package / Case	Voltage - Output (Max) [Max]	Supplier Device Package	Mounting Type	Voltage - Input (Min) [Min]	Output Configuration	Function	Voltage - Input (Max) [Max]	Topology
Texas Instruments TPS56528EVM-534	1.2 V	Fully Populated	Board(s)	18 V	4.5 V	5 A	TPS56528	Buck	Non-Isolated	1	650 kHz	DC/DC Step Down
Texas Instruments TPS56528DDAR						5 A					650 kHz		1	85 °C	-40 °C	0.6 V	Adjustable	3.9 mm	0.154 in	8-PowerSOIC	7 V	8-SO PowerPad	Surface Mount	4.5 V	Positive	Step-Down	18 V	Buck
Texas Instruments TPS56528DDA						5 A					650 kHz		1	85 °C	-40 °C	0.6 V	Adjustable	3.9 mm	0.154 in	8-PowerSOIC	7 V	8-SO PowerPad	Surface Mount	4.5 V	Positive	Step-Down	18 V	Buck

Catalog

4.5V to 18V Input, 5-A Synchronous Step-Down Converter with Advanced Eco-mode™

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: 0.6 V to 7 VHighly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications –68 mΩ (High-Side) and 37 mΩ (Low-Side)High Efficiency, Less Than 10 µA at ShutdownHigh Initial Band-Gap Reference AccuracyPrebiased Soft Start650-kHz Switching Frequency (fSW)Cycle-By-Cycle Overcurrent LimitAdvanced Auto-Skip Eco-Mode™ for High Efficiency at Light LoadPower Good OutputFixed Soft Start: 1 msD-CAP2™ Mode Enables Fast Transient ResponseLow Output Ripple and Allows Ceramic Output CapacitorWide VINInput Voltage Range: 4.5 V to 18 VOutput Voltage Range: 0.6 V to 7 VHighly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications –68 mΩ (High-Side) and 37 mΩ (Low-Side)High Efficiency, Less Than 10 µA at ShutdownHigh Initial Band-Gap Reference AccuracyPrebiased Soft Start650-kHz Switching Frequency (fSW)Cycle-By-Cycle Overcurrent LimitAdvanced Auto-Skip Eco-Mode™ for High Efficiency at Light LoadPower Good OutputFixed Soft Start: 1 ms

Description

The TPS56528 device is an adaptive on-time D-CAP2&rade; mode synchronous buck converter. The TPS56528 enables system designers to complete the suite of various end-equipment power bus regulators with a cost-effective, low component count, low standby current solution. The main control loop for the TPS56528 uses the D-CAP2™ mode control that provides a fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and advanced Eco-Mode™ operation at light loads. Advanced Eco-Mode™ allows the TPS56528 to maintain high efficiency during lighter load conditions. The TPS56528 also has a proprietary circuit that enables the device to adopt 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 VIN input. The output voltage can be programmed between 0.6 V and 7 V. The device also features a fixed 1-ms soft-start time and power good output. The TPS56528 is available in the 8-pin SO PowerPAD™ package, and designed to operate from –40°C to 85°C. The TPS56528 device is an adaptive on-time D-CAP2&rade; mode synchronous buck converter. The TPS56528 enables system designers to complete the suite of various end-equipment power bus regulators with a cost-effective, low component count, low standby current solution. The main control loop for the TPS56528 uses the D-CAP2™ mode control that provides a fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and advanced Eco-Mode™ operation at light loads. Advanced Eco-Mode™ allows the TPS56528 to maintain high efficiency during lighter load conditions. The TPS56528 also has a proprietary circuit that enables the device to adopt 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 VIN input. The output voltage can be programmed between 0.6 V and 7 V. The device also features a fixed 1-ms soft-start time and power good output. The TPS56528 is available in the 8-pin SO PowerPAD™ package, and designed to operate from –40°C to 85°C.