LMR14020-Q1 Series

SIMPLE SWITCHER® Automotive 40-V, 2-A, 2.2-MHz step-down converter with 40-uA IQ

Catalog

SIMPLE SWITCHER® Automotive 40-V, 2-A, 2.2-MHz step-down converter with 40-uA IQ

Part	Voltage - Output (Max)	Mounting Type	Voltage - Input (Min) [Min]	Supplier Device Package	Topology	Output Type	Grade	Qualification	Voltage - Output (Min/Fixed)	Number of Outputs	Output Configuration	Frequency - Switching [Min]	Frequency - Switching [Max]	Current - Output	Package / Case [y]	Package / Case [x]	Package / Case	Function	Operating Temperature [Min]	Operating Temperature [Max]	Regulator Topology	Supplied Contents	Voltage - Output	Board Type	Outputs and Type	Outputs and Type	Utilized IC / Part	Main Purpose	Frequency - Switching	Voltage - Input [Max]	Voltage - Input [Min]
Texas Instruments LMR14020SSQDDAQ1	28 V	Surface Mount	4 V	8-SO PowerPad	Buck	Adjustable	Automotive	AEC-Q100	0.8 V	1	Positive	200 kHz	2.5 MHz	2 A	3.9 mm	0.154 in	8-PowerSOIC	Step-Down	-40 °C	125 ¯C
Texas Instruments LMR14020SSQDDARQ1	28 V	Surface Mount	4 V	8-SO PowerPad	Buck	Adjustable	Automotive	AEC-Q100	0.8 V	1	Positive	200 kHz	2.5 MHz	2 A	3.9 mm	0.154 in	8-PowerSOIC	Step-Down	-40 °C	125 ¯C
Texas Instruments LMR14020QDPREVM														2 A							Buck	Board(s)	3.3 V 5 V	Fully Populated	Non-Isolated	1	LMR14020-Q1	DC/DC Step Down	1.6 MHz	40 V	7 V
Texas Instruments LMR14020HSSQDDARQ1	28 V	Surface Mount	4 V	8-SO PowerPad	Buck	Adjustable	Automotive	AEC-Q100	0.8 V	1	Positive	200 kHz	2.5 MHz	2 A	3.9 mm	0.154 in	8-PowerSOIC	Step-Down	-40 °C	125 ¯C
Texas Instruments LMR14020SQDPRRQ1	28 V	Surface Mount	4 V	10-WSON (4x4)	Buck	Adjustable	Automotive	AEC-Q100	0.8 V	1	Positive	200 kHz	2.5 MHz	2 A			10-WDFN Exposed Pad	Step-Down	-40 °C	125 ¯C
Texas Instruments LMR14020SDDA	28 V	Surface Mount	4 V	8-SO PowerPad	Buck	Adjustable			0.8 V	1	Positive	200 kHz	2.5 MHz	2 A	3.9 mm	0.154 in	8-PowerSOIC	Step-Down	-40 °C	125 ¯C
Texas Instruments LMR14020SQDDARQ1	28 V	Surface Mount	4 V	8-SO PowerPad	Buck	Adjustable	Automotive	AEC-Q100	0.8 V	1	Positive	200 kHz	2.5 MHz	2 A	3.9 mm	0.154 in	8-PowerSOIC	Step-Down	-40 °C	125 ¯C
Texas Instruments LMR14020SQDPRTQ1	28 V	Surface Mount	4 V	10-WSON (4x4)	Buck	Adjustable	Automotive	AEC-Q100	0.8 V	1	Positive	200 kHz	2.5 MHz	2 A			10-WDFN Exposed Pad	Step-Down	-40 °C	125 ¯C
Texas Instruments LMR14020QDPRTQ1	28 V	Surface Mount	4 V	10-WSON (4x4)	Buck	Adjustable	Automotive	AEC-Q100	0.8 V	1	Positive	200 kHz	2.5 MHz	2 A			10-WDFN Exposed Pad	Step-Down	-40 °C	125 ¯C

Catalog

SIMPLE SWITCHER® Automotive 40-V, 2-A, 2.2-MHz step-down converter with 40-uA IQ

Key Features

• Qualified for automotive applicationsAEC-Q100 qualified with the following results:Device temperature grade 1: –40 °C to 125 °C ambient operating temperature rangeDevice HBM ESD classification level H1CDevice CDM ESD classification level C4A4V to 40V input range2A continuous output currentUltra-low 40µA operating quiescent current90mΩ high-side MOSFET75ns minimum switch-on timeCurrent mode controlAdjustable switching frequency from 200kHz to 2.5MHzFrequency synchronization to external clockSpread spectrum option for reduced EMIFixed 5V output optionInternal compensation for ease of useHigh duty cycle operation supportedPrecision enable input1µA shutdown currentExternal soft startThermal, overvoltage, and short protectionQualified for automotive applicationsAEC-Q100 qualified with the following results:Device temperature grade 1: –40 °C to 125 °C ambient operating temperature rangeDevice HBM ESD classification level H1CDevice CDM ESD classification level C4A4V to 40V input range2A continuous output currentUltra-low 40µA operating quiescent current90mΩ high-side MOSFET75ns minimum switch-on timeCurrent mode controlAdjustable switching frequency from 200kHz to 2.5MHzFrequency synchronization to external clockSpread spectrum option for reduced EMIFixed 5V output optionInternal compensation for ease of useHigh duty cycle operation supportedPrecision enable input1µA shutdown currentExternal soft startThermal, overvoltage, and short protection

Description

The LMR14020-Q1 is a 40V, 2A step-down regulator with an integrated high-side MOSFET. With a wide input range from 4V to 40V, the device is designed for various applications from industrial to automotive for power conditioning from unregulated sources. An extended family is available in 3.5A and 5A options in pin-to-pin compatible packages, including LMR14030-Q1 and LMR14050-Q1. The regulator quiescent current is 40µA in sleep mode, which is designed for battery powered systems. An ultra-low 1µA current in shutdown mode can further prolong battery life. A wide adjustable switching frequency range allows either efficiency or external component size to be optimized. Internal loop compensation means that the user is free from the tedious task of loop compensation design. This internal loop compensation also minimizes the external components of the device. A precision enable input allows simplification of regulator control and system power sequencing. The device also has built-in protection features such as cycle-by-cycle current limit, thermal sensing and shutdown due to excessive power dissipation, and output overvoltage protection. The LMR14020-Q1 is available in an 8-pin, HSOIC or 10-pin, WSON package with exposed pad for low thermal resistance. The LMR14020-Q1 is a 40V, 2A step-down regulator with an integrated high-side MOSFET. With a wide input range from 4V to 40V, the device is designed for various applications from industrial to automotive for power conditioning from unregulated sources. An extended family is available in 3.5A and 5A options in pin-to-pin compatible packages, including LMR14030-Q1 and LMR14050-Q1. The regulator quiescent current is 40µA in sleep mode, which is designed for battery powered systems. An ultra-low 1µA current in shutdown mode can further prolong battery life. A wide adjustable switching frequency range allows either efficiency or external component size to be optimized. Internal loop compensation means that the user is free from the tedious task of loop compensation design. This internal loop compensation also minimizes the external components of the device. A precision enable input allows simplification of regulator control and system power sequencing. The device also has built-in protection features such as cycle-by-cycle current limit, thermal sensing and shutdown due to excessive power dissipation, and output overvoltage protection. The LMR14020-Q1 is available in an 8-pin, HSOIC or 10-pin, WSON package with exposed pad for low thermal resistance.