TPS54040A Series

3.5V to 42V Input, 0.5A Step-Down Converter with Eco-Mode

Catalog

3.5V to 42V Input, 0.5A Step-Down Converter with Eco-Mode

Part	Current - Output	Frequency - Switching [Max]	Frequency - Switching [Min]	Mounting Type	Voltage - Input (Min) [Min]	Voltage - Output (Max) [Max]	Supplier Device Package	Topology	Output Configuration	Output Type	Number of Outputs	Package / Case	Package / Case	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Operating Temperature [Max]	Operating Temperature [Min]	Function	Qualification	Grade	Voltage - Output	Voltage - Input [Max]	Voltage - Input [Min]	Main Purpose	Supplied Contents	Frequency - Switching	Utilized IC / Part	Outputs and Type	Outputs and Type	Board Type	Regulator Topology
Texas Instruments TPS54040DGQ	500 mA	2.5 MHz	100 kHz	Surface Mount	3.5 V	39 V	10-HVSSOP	Buck	Positive	Adjustable	1	10-MSOP 10-PowerTFSOP	0.118 in 3 mm	42 V	0.8 V	150 °C	-40 °C	Step-Down
Texas Instruments TPS54040ADRCR	500 mA	2.5 MHz	100 kHz	Surface Mount	3.5 V	39 V	10-VSON (3x3)	Buck	Positive	Adjustable	1	10-VFDFN Exposed Pad		42 V	0.8 V	150 °C	-40 °C	Step-Down
Texas Instruments TPS54040QDGQRQ1	500 mA	2.5 MHz	100 kHz	Surface Mount	3.5 V	39 V	10-HVSSOP	Buck	Positive	Adjustable	1	10-MSOP 10-PowerTFSOP	0.118 in 3 mm	42 V	0.8 V	150 °C	-40 °C	Step-Down	AEC-Q100	Automotive
Texas Instruments TPS54040DGQR	500 mA	2.5 MHz	100 kHz	Surface Mount	3.5 V	39 V	10-HVSSOP	Buck	Positive	Adjustable	1	10-MSOP 10-PowerTFSOP	0.118 in 3 mm	42 V	0.8 V	150 °C	-40 °C	Step-Down
Texas Instruments TPS54040QDRCRQ1	500 mA	2.5 MHz	100 kHz	Surface Mount	3.5 V	39 V	10-VSON (3x3)	Buck	Positive	Adjustable	1	10-VFDFN Exposed Pad		42 V	0.8 V	150 °C	-40 °C	Step-Down	AEC-Q100	Automotive
Texas Instruments TPS54040AGDGQR	500 mA	2.5 MHz	100 kHz	Surface Mount	3.5 V	42 V	10-HVSSOP	Buck	Positive	Adjustable	1	10-MSOP 10-TFSOP Exposed Pad	0.118 in 3 Lead	42 V	0.8 V	150 °C	-40 °C	Step-Down
Texas Instruments TPS54040ADGQ	500 mA	2.5 MHz	100 kHz	Surface Mount	3.5 V	39 V	10-HVSSOP	Buck	Positive	Adjustable	1	10-MSOP 10-PowerTFSOP	0.118 in 3 mm	42 V	0.8 V	150 °C	-40 °C	Step-Down
Texas Instruments TPS54040ADRCT	500 mA	2.5 MHz	100 kHz	Surface Mount	3.5 V	39 V	10-VSON (3x3)	Buck	Positive	Adjustable	1	10-VFDFN Exposed Pad		42 V	0.8 V	150 °C	-40 °C	Step-Down
Texas Instruments TPS54040EVM-456	500 mA																				5 V	42 V	12 V	DC/DC Step Down	Board(s)	700 kHz	TPS54040	Non-Isolated	1	Fully Populated	Buck

Catalog

3.5V to 42V Input, 0.5A 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 TPS54040for More 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 ReferenceAvailable in MSOP-10 and VSON-10 PackagesSupported 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 TPS54040for More 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 ReferenceAvailable in MSOP-10 and VSON-10 PackagesSupported by WEBENCH®and SwitcherPro™Software Tool

Description

The TPS54040A device is a 42 V, 0.5 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 input supply current to 116 µA. Using the enable pin, shutdown supply current is nominally 1.3 µA when the enable pin is low. Under voltage 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 or tracking. An open drain power good signal indicates when the output is within 94% to 107% of its nominal voltage. A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold back and thermal shutdown protects the part during an overload condition. The TPS54040A device is a 42 V, 0.5 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 input supply current to 116 µA. Using the enable pin, shutdown supply current is nominally 1.3 µA when the enable pin is low. Under voltage 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 or tracking. An open drain power good signal indicates when the output is within 94% to 107% of its nominal voltage. A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold back and thermal shutdown protects the part during an overload condition.