TPS54140A Series

3.5V to 42V Input, 1.5A Step-Down Converter with Eco-Mode

Catalog

3.5V to 42V Input, 1.5A Step-Down Converter with Eco-Mode

Part	Topology	Package / Case	Voltage - Input (Max) [Max]	Voltage - Input (Min) [Min]	Mounting Type	Output Type	Qualification	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output (Max) [Max]	Frequency - Switching [Max]	Frequency - Switching [Min]	Supplier Device Package	Number of Outputs	Current - Output	Output Configuration	Grade	Function	Voltage - Output (Min/Fixed)	Package / Case	Board Type	Supplied Contents	Frequency - Switching	Voltage - Input [Min]	Voltage - Input [Max]	Voltage - Output	Outputs and Type	Outputs and Type	Main Purpose	Regulator Topology	Utilized IC / Part
Texas Instruments TPS54140QDRCRQ1	Buck	10-VFDFN Exposed Pad	42 V	3.5 V	Surface Mount	Adjustable	AEC-Q100	150 °C	-40 °C	39 V	2.5 MHz	100 kHz	10-VSON (3x3)	1	1.5 A	Positive	Automotive	Step-Down	0.8 V
Texas Instruments TPS54140ADGQ	Buck	10-MSOP 10-PowerTFSOP	42 V	3.5 V	Surface Mount	Adjustable		150 °C	-40 °C	39 V	2.5 MHz	100 kHz	10-HVSSOP	1	1.5 A	Positive		Step-Down	0.8 V	0.118 in 3 mm
Texas Instruments TPS54140EVM-429															1.5 A						Fully Populated	Board(s)	500 kHz	25 V	42 V	3.3 V	Non-Isolated	1	DC/DC Step Down	Buck	TPS54140
Texas Instruments TPS54140ADRCT	Buck	10-VFDFN Exposed Pad	42 V	3.5 V	Surface Mount	Adjustable		150 °C	-40 °C	39 V	2.5 MHz	100 kHz	10-VSON (3x3)	1	1.5 A	Positive		Step-Down	0.8 V
Texas Instruments TPS54140DGQ	Buck	10-MSOP 10-PowerTFSOP	42 V	3.5 V	Surface Mount	Adjustable		150 °C	-40 °C	39 V	2.5 MHz	100 kHz	10-HVSSOP	1	1.5 A	Positive		Step-Down	0.8 V	0.118 in 3 mm
Texas Instruments TPS54140DGQR	Buck	10-MSOP 10-PowerTFSOP	42 V	3.5 V	Surface Mount	Adjustable		150 °C	-40 °C	39 V	2.5 MHz	100 kHz	10-HVSSOP	1	1.5 A	Positive		Step-Down	0.8 V	0.118 in 3 mm

Catalog

3.5V to 42V Input, 1.5A Step-Down Converter with Eco-Mode

Key Features

• 3.5-V to 42-V Input Voltage Range200-mΩ High-Side MOSFETHigh Efficiency at Light Loads with a PulseSkipping Eco-mode™Tighter Enable Threshold than TPS54140 forMore Accurate UVLO VoltageAdjustable UVLO Voltage and Hysteresis116-µA Operating Quiescent Current1.3-µA Shutdown Current100-kHz to 2.5-MHz Switching FrequencySynchronizes to External ClockAdjustable Slow Start/SequencingUV and OV Power Good Output0.8-V Internal Voltage ReferenceMSOP10 and 3-mm × 3-mm VSON-10 PackageWith PowerPAD™Supported by WEBENCH®and SwitcherPro™Software Tool3.5-V to 42-V Input Voltage Range200-mΩ High-Side MOSFETHigh Efficiency at Light Loads with a PulseSkipping Eco-mode™Tighter Enable Threshold than TPS54140 forMore Accurate UVLO VoltageAdjustable UVLO Voltage and Hysteresis116-µA Operating Quiescent Current1.3-µA Shutdown Current100-kHz to 2.5-MHz Switching FrequencySynchronizes to External ClockAdjustable Slow Start/SequencingUV and OV Power Good Output0.8-V Internal Voltage ReferenceMSOP10 and 3-mm × 3-mm VSON-10 PackageWith PowerPAD™Supported by WEBENCH®and SwitcherPro™Software Tool

Description

The TPS54140 device is a 42-V, 1.5-A, step-down regulator with an integrated high-side MOSFET. Current mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no load, regulated output-supply current to 116 µA. Using the enable pin, the shutdown supply current is reduced to 1.3 µA. Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output-voltage startup ramp is controlled by the slow-start pin that can also be configured for sequencing and tracking. An open-drain power-good signal indicates the output is within 94% to 107% of the nominal voltage. A wide switching frequency range allows efficiency and external component size to be optimized. Frequency foldback and thermal shutdown protects the device during an overload condition. The TPS54140 device is available in a 10-pin thermally enhanced MSOP PowerPAD package. The TPS54140 device is a 42-V, 1.5-A, step-down regulator with an integrated high-side MOSFET. Current mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no load, regulated output-supply current to 116 µA. Using the enable pin, the shutdown supply current is reduced to 1.3 µA. Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output-voltage startup ramp is controlled by the slow-start pin that can also be configured for sequencing and tracking. An open-drain power-good signal indicates the output is within 94% to 107% of the nominal voltage. A wide switching frequency range allows efficiency and external component size to be optimized. Frequency foldback and thermal shutdown protects the device during an overload condition. The TPS54140 device is available in a 10-pin thermally enhanced MSOP PowerPAD package.