LM25011-Q1 Series

Automotive 6-42V Wide Vin, 2A Constant-On Time Non-Synchronous Buck Regulator w/ Adj Current Limit

Catalog

Automotive 6-42V Wide Vin, 2A Constant-On Time Non-Synchronous Buck Regulator w/ Adj Current Limit

Part	Number of Outputs	Output Type	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Input (Max) [Max]	Frequency - Switching [Max]	Output Configuration	Voltage - Input (Min) [Min]	Voltage - Output (Max) [Max]	Package / Case	Package / Case	Current - Output	Mounting Type	Voltage - Output (Min/Fixed)	Topology	Supplier Device Package	Function	Supplied Contents	Voltage - Input [Min]	Voltage - Input [Max]	Regulator Topology	Board Type	Voltage - Output	Main Purpose	Utilized IC / Part	Outputs and Type	Outputs and Type	Qualification	Grade
Texas Instruments LM25011MY/NOPB	1	Adjustable	-40 °C	125 ¯C	42 V	2 MHz	Positive	6 V	40 V	10-MSOP 10-PowerTFSOP	0.118 in 3 mm	2 A	Surface Mount	2.51 V	Buck	10-HVSSOP	Step-Down
Texas Instruments LM25011AMYX	1	Adjustable	-40 °C	125 ¯C	42 V	2 MHz	Positive	6 V	40 V	10-MSOP 10-PowerTFSOP	0.118 in 3 mm	2 A	Surface Mount	2.51 V	Buck	10-HVSSOP	Step-Down
Texas Instruments LM25011MY-EVAL/NOPB												2 A						Board(s)	8 V	42 V	Buck	Fully Populated	5 V	DC/DC Step Down	LM25011	Non-Isolated	1
Texas Instruments LM25011Q1MY/NOPB	1	Adjustable	-40 °C	125 ¯C	42 V	2 MHz	Positive	6 V	40 V	10-MSOP 10-TFSOP Exposed Pad	0.118 in 3 Lead	2 A	Surface Mount	2.51 V	Buck	10-MSOP-PowerPad	Step-Down											AEC-Q100	Automotive
Texas Instruments LM25011Q1MYX/NOPB	1	Adjustable	-40 °C	125 ¯C	42 V	2 MHz	Positive	6 V	40 V	10-MSOP 10-TFSOP Exposed Pad	0.118 in 3 Lead	2 A	Surface Mount	2.51 V	Buck	10-MSOP-PowerPad	Step-Down											AEC-Q100	Automotive
Texas Instruments LM25011MYX/NOPB	1	Adjustable	-40 °C	125 ¯C	42 V	2 MHz	Positive	6 V	40 V	10-MSOP 10-PowerTFSOP	0.118 in 3 mm	2 A	Surface Mount	2.51 V	Buck	10-HVSSOP	Step-Down

Catalog

Automotive 6-42V Wide Vin, 2A Constant-On Time Non-Synchronous Buck Regulator w/ Adj Current Limit

Key Features

• LM25011-Q1 is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (–40°C to +125°C Operating Junction Temperature)LM25011A Allows Low-Dropout Operation at High Switching FrequencyInput Operating Voltage Range: 6 V to 42 VAbsolute Maximum Input Rating: 45 VIntegrated 2-A N-Channel Buck SwitchAdjustable Current Limit Allows for Smaller InductorAdjustable Output Voltage from 2.51 VMinimum Ripple Voltage at VOUTPower Good OutputSwitching Frequency Adjustable to 2 MHzCOT Topology Features:Switching Frequency Remains Nearly Constant with Load Current and Input Voltage VariationsUltra-Fast Transient ResponseNo Loop Compensation RequiredStable Operation with Ceramic Output CapacitorsAllows for Smaller Output Capacitor and Current Sense ResistorAdjustable Soft-Start TimingThermal ShutdownPrecision 2% Feedback ReferencePackage: 10-Pin, HVSSOPCreate a Custom Design Using the LM25011 Family with theWEBENCH Power DesignerLM25011-Q1 is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (–40°C to +125°C Operating Junction Temperature)LM25011A Allows Low-Dropout Operation at High Switching FrequencyInput Operating Voltage Range: 6 V to 42 VAbsolute Maximum Input Rating: 45 VIntegrated 2-A N-Channel Buck SwitchAdjustable Current Limit Allows for Smaller InductorAdjustable Output Voltage from 2.51 VMinimum Ripple Voltage at VOUTPower Good OutputSwitching Frequency Adjustable to 2 MHzCOT Topology Features:Switching Frequency Remains Nearly Constant with Load Current and Input Voltage VariationsUltra-Fast Transient ResponseNo Loop Compensation RequiredStable Operation with Ceramic Output CapacitorsAllows for Smaller Output Capacitor and Current Sense ResistorAdjustable Soft-Start TimingThermal ShutdownPrecision 2% Feedback ReferencePackage: 10-Pin, HVSSOPCreate a Custom Design Using the LM25011 Family with theWEBENCH Power Designer

Description

The LM25011 constant on-time step-down switching regulator features all the functions needed to implement a low-cost, efficient, buck bias regulator capable of supplying up to 2 A of load current. This high-voltage regulator contains an N-Channel Buck switch, a startup regulator, current limit detection, and internal ripple control. The constant on-time regulation principle requires no loop compensation, results in fast load transient response, and simplifies circuit implementation. The operating frequency remains constant with line and load. The adjustable valley current limit detection results in a smooth transition from constant voltage to constant current mode when current limit is reached, without the use of current limit foldback. The PGD output indicates the output voltage has increased to within 5% of the expected regulation value. Additional features include: Low output ripple, VIN under-voltage lock-out, adjustable soft-start timing, thermal shutdown, gate drive pre-charge, gate drive under-voltage lock-out, and maximum duty cycle limit. The LM25011A has a shorter minimum off-time than the LM25011, which allows for higher frequency operation at low input voltages. The LM25011 constant on-time step-down switching regulator features all the functions needed to implement a low-cost, efficient, buck bias regulator capable of supplying up to 2 A of load current. This high-voltage regulator contains an N-Channel Buck switch, a startup regulator, current limit detection, and internal ripple control. The constant on-time regulation principle requires no loop compensation, results in fast load transient response, and simplifies circuit implementation. The operating frequency remains constant with line and load. The adjustable valley current limit detection results in a smooth transition from constant voltage to constant current mode when current limit is reached, without the use of current limit foldback. The PGD output indicates the output voltage has increased to within 5% of the expected regulation value. Additional features include: Low output ripple, VIN under-voltage lock-out, adjustable soft-start timing, thermal shutdown, gate drive pre-charge, gate drive under-voltage lock-out, and maximum duty cycle limit. The LM25011A has a shorter minimum off-time than the LM25011, which allows for higher frequency operation at low input voltages.