TPS568236 Series

4.5V-to-18V input, 8A synchronous step-down voltage regulator with on-time D-CAP3™ control mode

Catalog

4.5V-to-18V input, 8A synchronous step-down voltage regulator with on-time D-CAP3™ control mode

Part	Voltage - Input (Min) [Min]	Output Configuration	Synchronous Rectifier	Current - Output	Package / Case	Topology	Voltage - Output (Min/Fixed)	Voltage - Output (Max) [Max]	Function	Supplier Device Package	Operating Temperature [Min]	Operating Temperature [Max]	Mounting Type	Output Type	Frequency - Switching	Voltage - Input (Max) [Max]	Number of Outputs
Texas Instruments TPS568236RJNR	4.5 V	Positive		8 A	12-PowerVFQFN	Buck	0.6 V	5.5 V	Step-Down	12-VQFN-HR (3x2)	-40 °C	125 ¯C	Surface Mount	Adjustable	600 kHz	18 V	1

Catalog

4.5V-to-18V input, 8A synchronous step-down voltage regulator with on-time D-CAP3™ control mode

Key Features

• 4.5-V to 18-V input voltage range0.6-V to 5.5-V output voltage rangeIntegrated 22-mΩ and 11-mΩ MOSFETsSupport 8-A continuous I OUT84-µA low quiescent current±1% reference voltage (0.6 V) at 25°C±1.5% reference voltage (0.6 V) at –40°C to 125°C600-kHz switching frequencyD-CAP3™ control mode for fast transient responseSupports POSCAP and all MLCC output capacitorOutput discharge functionAdjustable soft startSelectable PSM and FCCM under light loadPower-good indicator to monitor output voltageAuto recover output OV and UV protectionNon-latched UVLO and OT protectionCycle-by-cycle overcurrent protectionBuilt-in output discharge featureSmall 2.00-mm × 3.00-mm HotRod™ QFN package4.5-V to 18-V input voltage range0.6-V to 5.5-V output voltage rangeIntegrated 22-mΩ and 11-mΩ MOSFETsSupport 8-A continuous I OUT84-µA low quiescent current±1% reference voltage (0.6 V) at 25°C±1.5% reference voltage (0.6 V) at –40°C to 125°C600-kHz switching frequencyD-CAP3™ control mode for fast transient responseSupports POSCAP and all MLCC output capacitorOutput discharge functionAdjustable soft startSelectable PSM and FCCM under light loadPower-good indicator to monitor output voltageAuto recover output OV and UV protectionNon-latched UVLO and OT protectionCycle-by-cycle overcurrent protectionBuilt-in output discharge featureSmall 2.00-mm × 3.00-mm HotRod™ QFN package

Description

The TPS568236 is monolithic, 8-A, synchronous buck converters with adaptive on-time D-CAP3 control mode. Integrated low R DS(on) power MOSFETs enable high efficiency and offer ease-of-use with minimum external component count for space-constrained power systems. Features include an accurate reference voltage, fast load transient response, auto-skip mode operation for light load efficiency, forced PWM mode for fixed switching frequency, D-CAP3 control mode with good line, load regulation, and does not require external compensation. The TPS568236 provides complete protection OVP, UVP, OCP, OTP and UVLO. The device is a combined power-good signal and output discharge function. The TPS568236 supports both internal and external soft-start time option. The device has the internal fixed soft-start time 1 ms. If the application needs longer soft-start time, the external SS pin can be used to achieve it by connecting the external capacitor The TPS568236 is available in a thermally enhanced 12-pin QFN package and is designed to operate from –40°C to 125°C junction temperature. The TPS568236 is monolithic, 8-A, synchronous buck converters with adaptive on-time D-CAP3 control mode. Integrated low R DS(on) power MOSFETs enable high efficiency and offer ease-of-use with minimum external component count for space-constrained power systems. Features include an accurate reference voltage, fast load transient response, auto-skip mode operation for light load efficiency, forced PWM mode for fixed switching frequency, D-CAP3 control mode with good line, load regulation, and does not require external compensation. The TPS568236 provides complete protection OVP, UVP, OCP, OTP and UVLO. The device is a combined power-good signal and output discharge function. The TPS568236 supports both internal and external soft-start time option. The device has the internal fixed soft-start time 1 ms. If the application needs longer soft-start time, the external SS pin can be used to achieve it by connecting the external capacitor The TPS568236 is available in a thermally enhanced 12-pin QFN package and is designed to operate from –40°C to 125°C junction temperature.