TPS56637 Series

4.5-V to 28-V, 6-A synchronous buck converter with ULQ-Mode

Catalog

4.5-V to 28-V, 6-A synchronous buck converter with ULQ-Mode

Part	Outputs and Type	Outputs and Type	Regulator Topology	Supplied Contents	Frequency - Switching	Utilized IC / Part	Current - Output	Voltage - Output	Board Type	Voltage - Input [Max]	Voltage - Input [Min]	Main Purpose	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output (Min/Fixed)	Voltage - Input (Max) [Max]	Mounting Type	Output Configuration	Output Type	Package / Case	Function	Topology	Voltage - Input (Min) [Min]	Synchronous Rectifier	Supplier Device Package	Number of Outputs	Voltage - Output (Max) [Max]
Texas Instruments TPS56637EVM-029	Non-Isolated	1	Buck	Board(s)	500 kHz	TPS56637	6 A	5 V	Fully Populated	28 V	4.5 V	DC/DC Step Down
Texas Instruments TPS56637RPAR					500 kHz		6 A						150 °C	-40 °C	0.6 V	28 V	Surface Mount	Positive	Adjustable	10-PowerVFQFN	Step-Down	Buck	4.5 V		10-VQFN-HR (3x3)	1	13 V

Catalog

4.5-V to 28-V, 6-A synchronous buck converter with ULQ-Mode

Key Features

• 4.5-V to 28-V input voltage range0.6-V to 13-V output voltage range6-A maximum continuous output currentIntegrated 26-mΩ and 12-mΩ MOSFETs0.6-V ±1% Reference VoltageD-CAP3™ control mode for fast transient responseEco-mode™ and FCCM (forced continuous conduction mode) selectable for light-load operation through MODE pinInternal 2-ms soft startBuilt-in output discharge function500-kHz switching frequencyPower good indicator to monitor output voltageCycle by cycle over current limitNon-latched protections for UV, OV, OT and UVLO–40°C to +150°C operating junction temperatureSmall 10-Pin 3.0-mm × 3.0-mm HotRod™ QFN PackageAvailable inWEBENCH®Power Designerto create custom designs4.5-V to 28-V input voltage range0.6-V to 13-V output voltage range6-A maximum continuous output currentIntegrated 26-mΩ and 12-mΩ MOSFETs0.6-V ±1% Reference VoltageD-CAP3™ control mode for fast transient responseEco-mode™ and FCCM (forced continuous conduction mode) selectable for light-load operation through MODE pinInternal 2-ms soft startBuilt-in output discharge function500-kHz switching frequencyPower good indicator to monitor output voltageCycle by cycle over current limitNon-latched protections for UV, OV, OT and UVLO–40°C to +150°C operating junction temperatureSmall 10-Pin 3.0-mm × 3.0-mm HotRod™ QFN PackageAvailable inWEBENCH®Power Designerto create custom designs

Description

The TPS56637 is a high efficiency, high-voltage input, easy-to-use synchronous buck converter with integrated MOSFETs. With the wide operating input voltage range of 4.5 V to 28 V, the TPS56637 is ideally suited for systems powered from 12-V, 19-V, 24-V power-bus rails. It supports up to 6-A continuous output current at output voltages between 0.6 V and 13 V. The TPS56637 uses DCAP3™ control mode to provide fast transient response, good line and load regulation, no requirement for external compensation, and supports low equivalent series resistance (ESR) output capacitors such as POSCAP and MLCC. The TPS56637 has both FCCM and Eco-mode™ operation modes for selection at light-load condition through configuration of MODE pin. To attain high efficiency at light load, Eco-mode™ could be selected. To support tight output voltage ripple requirement, FCCM could be selected. The TPS56637 provides complete non-latched OV (Over-voltage), UV (Under-voltage), OC (Over-current), OT (Over-temperature) and UVLO (Under-voltage lock-out) protections combined with power good indicator and output discharge function features. The TPS56637 is available in a 10-pin 3.0-mm x 3.0-mm HotRod™ QFN package and the junction temperature is specified from –40°C to 150°C. The TPS56637 is a high efficiency, high-voltage input, easy-to-use synchronous buck converter with integrated MOSFETs. With the wide operating input voltage range of 4.5 V to 28 V, the TPS56637 is ideally suited for systems powered from 12-V, 19-V, 24-V power-bus rails. It supports up to 6-A continuous output current at output voltages between 0.6 V and 13 V. The TPS56637 uses DCAP3™ control mode to provide fast transient response, good line and load regulation, no requirement for external compensation, and supports low equivalent series resistance (ESR) output capacitors such as POSCAP and MLCC. The TPS56637 has both FCCM and Eco-mode™ operation modes for selection at light-load condition through configuration of MODE pin. To attain high efficiency at light load, Eco-mode™ could be selected. To support tight output voltage ripple requirement, FCCM could be selected. The TPS56637 provides complete non-latched OV (Over-voltage), UV (Under-voltage), OC (Over-current), OT (Over-temperature) and UVLO (Under-voltage lock-out) protections combined with power good indicator and output discharge function features. The TPS56637 is available in a 10-pin 3.0-mm x 3.0-mm HotRod™ QFN package and the junction temperature is specified from –40°C to 150°C.