TPS56837H Series

4.5V to 28V input, 8A synchronous buck converter with output voltage range supporting USB-C

Catalog

4.5V to 28V input, 8A synchronous buck converter with output voltage range supporting USB-C

Part	Output Configuration	Voltage - Output (Max) [Max]	Supplier Device Package	Topology	Frequency - Switching	Package / Case	Voltage - Output (Min/Fixed)	Mounting Type	Function	Operating Temperature [Max]	Operating Temperature [Min]	Output Type	Current - Output	Voltage - Input (Min) [Min]	Synchronous Rectifier	Number of Outputs	Voltage - Input (Max) [Max]
Texas Instruments TPS56837RPAR	Positive	13 V	10-VQFN-HR (3x3)	Buck	1.2 MHz 500 kHz 800 kHz	10-PowerVFQFN	13 V	Surface Mount	Step-Down	150 °C	-40 °C	Adjustable	8 A	4.5 V		1	28 V
Texas Instruments TPS56837HRPAR	Positive	22 V	10-VQFN-HR (3x3)	Buck	500 kHz	10-PowerVFQFN	4 V	Surface Mount	Step-Down	150 °C	-40 °C	Adjustable	8 A	4.5 V		1	28 V

Catalog

4.5V to 28V input, 8A synchronous buck converter with output voltage range supporting USB-C

Key Features

• Support for USB power delivery (USB PD)4.5V to 28V input voltage range4V to 22V output voltage rangeSupports 8A continuous output currentThree adjustable cycle-by-cycle over current limit for low-side MOSFET by mode selectionHigh efficiency over entire load rangeIntegrated 20.4mΩ and 9.5mΩ MOSFETs45uA low quiescent currentFixed 500kHz switching frequency98.7% efficiency at VIN = 24V, VOUT = 20V and IOUT = 3AEco-mode for high light-load efficiency0.6V ±1% reference voltage at 25°CD-CAP3™ control mode for fast transient responseAdjustable soft-start time by SS capacitorTPS56837H supports output discharge functionPower-good indicator to monitor output voltageSupports up to 98% duty operationNon-latched protections for UV, OV, OT, and UVLO–40°C to +150°C operating junction temperatureSmall 10-pin 3.0mm × 3.0mm HotRod™QFN PackagePin-to-pin compatible with 6ATPS56637and 8ATPS56837Support for USB power delivery (USB PD)4.5V to 28V input voltage range4V to 22V output voltage rangeSupports 8A continuous output currentThree adjustable cycle-by-cycle over current limit for low-side MOSFET by mode selectionHigh efficiency over entire load rangeIntegrated 20.4mΩ and 9.5mΩ MOSFETs45uA low quiescent currentFixed 500kHz switching frequency98.7% efficiency at VIN = 24V, VOUT = 20V and IOUT = 3AEco-mode for high light-load efficiency0.6V ±1% reference voltage at 25°CD-CAP3™ control mode for fast transient responseAdjustable soft-start time by SS capacitorTPS56837H supports output discharge functionPower-good indicator to monitor output voltageSupports up to 98% duty operationNon-latched protections for UV, OV, OT, and UVLO–40°C to +150°C operating junction temperatureSmall 10-pin 3.0mm × 3.0mm HotRod™QFN PackagePin-to-pin compatible with 6ATPS56637and 8ATPS56837

Description

The TPS56837H and TPS56837HA are high-efficiency, easy-to-use, synchronous buck converters with wide input voltage range of 4.5V to 28V. The devices support up to 8A continuous output current at output voltages between 4V and 22V, and support 5V, 9V, 15V, 20V dynamic output change for USB Power Delivery (USB PD) application. The TPS56837H and TPS56837HA use D-CAP3 control mode to provide fast transient response, good line and load regulation, no requirement for external compensation, and support low equivalent series resistance (ESR) output capacitors like MLCC. The TPS56837H and TPS56837HA operate at Eco-mode to attain high efficiency at light load with fixed 500kHz switching frequency and three selectable current limit through MODE pin configuration. The TPS56837H and TPS56837HA have adjustable soft-start time by the SS pin capacitor configuration. The TPS56837H and TPS56837HA provide complete non-latched OV, UV, OC, OT, and UVLO protections combined with power-good indicator features. TPS56837H supports output discharge function and TPS56837HA disables the function. The TPS56837H and TPS56837HA are available in a 10-pin, 3.0mm × 3.0mm, HotRod QFN package, and the junction temperature is specified from –40°C to 150°C. The TPS56837H and TPS56837HA are high-efficiency, easy-to-use, synchronous buck converters with wide input voltage range of 4.5V to 28V. The devices support up to 8A continuous output current at output voltages between 4V and 22V, and support 5V, 9V, 15V, 20V dynamic output change for USB Power Delivery (USB PD) application. The TPS56837H and TPS56837HA use D-CAP3 control mode to provide fast transient response, good line and load regulation, no requirement for external compensation, and support low equivalent series resistance (ESR) output capacitors like MLCC. The TPS56837H and TPS56837HA operate at Eco-mode to attain high efficiency at light load with fixed 500kHz switching frequency and three selectable current limit through MODE pin configuration. The TPS56837H and TPS56837HA have adjustable soft-start time by the SS pin capacitor configuration. The TPS56837H and TPS56837HA provide complete non-latched OV, UV, OC, OT, and UVLO protections combined with power-good indicator features. TPS56837H supports output discharge function and TPS56837HA disables the function. The TPS56837H and TPS56837HA are available in a 10-pin, 3.0mm × 3.0mm, HotRod QFN package, and the junction temperature is specified from –40°C to 150°C.