LMR12020 Series

3V to 20V, 2.0A Step-Down DC/DC Switching Regulator in LLP-10

Catalog

3V to 20V, 2.0A Step-Down DC/DC Switching Regulator in LLP-10

Part	Function	Package / Case	Output Configuration	Supplier Device Package	Voltage - Input (Min) [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Frequency - Switching	Current - Output	Output Type	Synchronous Rectifier	Voltage - Output (Min/Fixed)	Voltage - Output (Max) [Max]	Number of Outputs	Topology	Voltage - Input (Max) [Max]	Mounting Type	Main Purpose	Voltage - Input [Min]	Voltage - Input [Max]	Supplied Contents	Regulator Topology	Board Type	Utilized IC / Part	Outputs and Type	Outputs and Type	Voltage - Output
Texas Instruments LMR12020XSDX/NOPB	Step-Down	10-WFDFN Exposed Pad	Positive	10-WSON (3x3)	3 V	-40 °C	125 ¯C	2 MHz	2 A	Adjustable		1 V	18 V	1	Buck	20 V	Surface Mount
Texas Instruments LMR12020XSDEVM/NOPB								2 MHz	2 A									DC/DC Step Down	7 V	20 V	Board(s)	Buck	Fully Populated	LMR12020	Non-Isolated	1	3.3 V 5 V

Catalog

3V to 20V, 2.0A Step-Down DC/DC Switching Regulator in LLP-10

Key Features

• Input Voltage Range of 3 V to 20 VOutput Voltage Range of 1 V to 18 VLMR12015 and LMR12020 Deliver 1.5-A and 2-A Maximum Output Current, Respectively2-MHz Switching FrequencyFrequency Synchronization from 1 MHz to 2.35 MHz70-nA Shutdown Current1% Voltage-Reference AccuracyPeak-Current-Mode PWM OperationThermal ShutdownInternally CompensatedInternal Soft StartTight Accuracy for Powering Digital ICsExtremely Easy to UseTiny Overall Solution Reduces System CostSpace-Saving WSON (3 × 3 × 0.8 mm) PackagingCreate a custom design using the LMR12015WEBENCH®Power Designeror LMR12020WEBENCH®Power DesignerInput Voltage Range of 3 V to 20 VOutput Voltage Range of 1 V to 18 VLMR12015 and LMR12020 Deliver 1.5-A and 2-A Maximum Output Current, Respectively2-MHz Switching FrequencyFrequency Synchronization from 1 MHz to 2.35 MHz70-nA Shutdown Current1% Voltage-Reference AccuracyPeak-Current-Mode PWM OperationThermal ShutdownInternally CompensatedInternal Soft StartTight Accuracy for Powering Digital ICsExtremely Easy to UseTiny Overall Solution Reduces System CostSpace-Saving WSON (3 × 3 × 0.8 mm) PackagingCreate a custom design using the LMR12015WEBENCH®Power Designeror LMR12020WEBENCH®Power Designer

Description

The LMR120xx regulator is a monolithic, high frequency, PWM step-down DC/DC converter in a 10-pin WSON package. It contains all the active functions to provide local DC/DC conversion with fast transient response and accurate regulation in the smallest possible PCB area. With a minimum of external components the LMR12015/20 is easy to use. The ability to drive 1.5-A or 2-A loads, with an internal 150-mΩ NMOS switch results in the best power density available. The control circuitry allows for on-times as low as 65 ns, thus supporting exceptionally high frequency conversion. Switching frequency is internally set to 2 MHz and synchronizable from 1 to 2.35 MHz, which allows the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequency is very high, efficiencies up to 90% are easy to achieve. External shutdown is included featuring an ultra-low shutdown current of 70 nA. The LMR12015/20 utilizes peak current mode control and internal compensation to provide high-performance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry to reduce inrush current, pulse-by-pulse current limit, thermal shutdown, and output overvoltage protection. The LMR120xx regulator is a monolithic, high frequency, PWM step-down DC/DC converter in a 10-pin WSON package. It contains all the active functions to provide local DC/DC conversion with fast transient response and accurate regulation in the smallest possible PCB area. With a minimum of external components the LMR12015/20 is easy to use. The ability to drive 1.5-A or 2-A loads, with an internal 150-mΩ NMOS switch results in the best power density available. The control circuitry allows for on-times as low as 65 ns, thus supporting exceptionally high frequency conversion. Switching frequency is internally set to 2 MHz and synchronizable from 1 to 2.35 MHz, which allows the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequency is very high, efficiencies up to 90% are easy to achieve. External shutdown is included featuring an ultra-low shutdown current of 70 nA. The LMR12015/20 utilizes peak current mode control and internal compensation to provide high-performance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry to reduce inrush current, pulse-by-pulse current limit, thermal shutdown, and output overvoltage protection.