LMR14030-Q1 Series

SIMPLE SWITCHER® Automotive 40-V, 3.5-A, 2.2-MHz step-down converter with 40-uA IQ

Catalog

SIMPLE SWITCHER® Automotive 40-V, 3.5-A, 2.2-MHz step-down converter with 40-uA IQ

Part	Function	Current - Output	Supplier Device Package	Voltage - Output (Min/Fixed)	Package / Case [y]	Package / Case [x]	Package / Case	Topology	Output Type	Qualification	Mounting Type	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Output (Max)	Output Configuration	Voltage - Input (Min) [Min]	Frequency - Switching [Min]	Frequency - Switching [Max]	Number of Outputs	Grade	Board Type	Regulator Topology	Supplied Contents	Frequency - Switching	Main Purpose	Outputs and Type	Outputs and Type	Voltage - Output	Voltage - Input [Max]	Voltage - Input [Min]	Utilized IC / Part
Texas Instruments LMR14030SQDDAQ1	Step-Down	3.5 A	8-SO PowerPad	0.8 V	3.9 mm	0.154 in	8-PowerSOIC	Buck	Adjustable	AEC-Q100	Surface Mount	-40 °C	125 ¯C	28 V	Positive	4 V	200 kHz	2.5 MHz	1	Automotive
Texas Instruments LMR14030SDDA	Step-Down	3.5 A	8-SO PowerPad	0.8 V	3.9 mm	0.154 in	8-PowerSOIC	Buck	Adjustable		Surface Mount	-40 °C	125 ¯C	28 V	Positive	4 V	200 kHz	2.5 MHz	1
Texas Instruments LMR14030QDPRTQ1	Step-Down	3.5 A	10-WSON (4x4)	0.8 V			10-WDFN Exposed Pad	Buck	Adjustable	AEC-Q100	Surface Mount	-40 °C	125 ¯C	28 V	Positive	4 V	200 kHz	2.5 MHz	1	Automotive
Texas Instruments LMR14030QDPRRQ1	Step-Down	3.5 A	10-WSON (4x4)	0.8 V			10-WDFN Exposed Pad	Buck	Adjustable	AEC-Q100	Surface Mount	-40 °C	125 ¯C	28 V	Positive	4 V	200 kHz	2.5 MHz	1	Automotive
Texas Instruments LMR14030QDPREVM		3.5 A																			Fully Populated	Buck	Board(s)	600 kHz	DC/DC Step Down	Non-Isolated	1	3.3 V 5 V	40 V	7 V	LMR14030-Q1
Texas Instruments LMR14030SSQDDAQ1	Step-Down	3.5 A	8-SO PowerPad	0.8 V	3.9 mm	0.154 in	8-PowerSOIC	Buck	Adjustable	AEC-Q100	Surface Mount	-40 °C	125 ¯C	28 V	Positive	4 V	200 kHz	2.5 MHz	1	Automotive
Texas Instruments LMR14030SEVM		3.5 A																			Fully Populated	Buck	Board(s)	600 kHz	DC/DC Step Down	Non-Isolated	1	3.3 V 5 V	40 V	7 V
Texas Instruments LMR14030SQDPRTQ1	Step-Down	3.5 A	10-WSON (4x4)	0.8 V			10-WDFN Exposed Pad	Buck	Adjustable	AEC-Q100	Surface Mount	-40 °C	125 ¯C	28 V	Positive	4 V	200 kHz	2.5 MHz	1	Automotive
Texas Instruments LMR14030SQDPRRQ1	Step-Down	3.5 A	10-WSON (4x4)	0.8 V			10-WDFN Exposed Pad	Buck	Adjustable	AEC-Q100	Surface Mount	-40 °C	125 ¯C	28 V	Positive	4 V	200 kHz	2.5 MHz	1	Automotive

Catalog

SIMPLE SWITCHER® Automotive 40-V, 3.5-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 range3.5A 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 EMIInternal compensation for ease of useHigh duty cycle operation supportedPrecision enable input1µA shutdown currentExternal soft startThermal, overvoltage, and short protection8-pin HSOIC with PowerPAD™ packageQualified 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 range3.5A 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 EMIInternal compensation for ease of useHigh duty cycle operation supportedPrecision enable input1µA shutdown currentExternal soft startThermal, overvoltage, and short protection8-pin HSOIC with PowerPAD™ package

Description

The LMR14030-Q1 is a 40V, 3.5A 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 2A and 5A options in pin-to-pin compatible packages, including LMR14020-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 feature 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 LMR14030-Q1 is available in an 8-pin HSOIC or 10-pin WSON package with exposed pad for low thermal resistance. The LMR14030-Q1 is a 40V, 3.5A 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 2A and 5A options in pin-to-pin compatible packages, including LMR14020-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 feature 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 LMR14030-Q1 is available in an 8-pin HSOIC or 10-pin WSON package with exposed pad for low thermal resistance.